Chemical Communications Blog

ChemComm Emerging Investigator Lectureship: Tomislav Friščić

15 Apr 2015

Tomislav Friščić (McGill University), one of the winners of the 2014 ChemComm Emerging Investigator Lectureship, delivered the first of his three lectures, entitled “Mechanochemistry: from environmentally-friendly synthesis to the discovery of new materials and reactivity,” at the University of Ottawa on 25 February 2015.

Tomislav will next be speaking at University College London on Friday, 17 April 2015, and will deliver his final Lectureship talk at the 22nd International Conference on the Chemistry of the Organic Solid State (ICCOSS XXII) in Niigata, Japan on 12-17 July 2015, where he will be formally awarded with his Lectureship certificate.

Xinliang Feng (Technische Universität Dresden, Germany) was the third recipient of the 2014 Lectureship, and he will be delivering his lecture at ECME 2015 – the 13th European Conference on Molecular Electronics – to be held in Strasbourg from 1-5 September 2015. More details on this and Xinliang’s other forthcoming lectures will be posted soon.

Our annual lectureship recognises emerging scientists in the early stages of their independent academic career. We will soon be announcing our winners for 2015.

ChemComm Emerging Investigator Lectureship 2014 recipient Tomislav Friscic delivering his lecture at the University of Ottawa

Tomislav Friscic with his host at the University of Ottawa, David Bryce

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ChemComm Emerging Investigator Lectureship: Simon M. Humphrey

14 Apr 2015

By Jeanne Therese Andres.

Dr Simon Humphrey (University of Texas at Austin), one of the winners of the 2014 ChemComm Emerging Investigator Lectureship, is currently on his Lectureship tour in three locations in California:

University of California – San Diego, 10 April 2015
University of California – Riverside, 13 April 2015
University of California – Santa Barbara, 15 April 2015

Simon delivered the first of his three lectures, entitled “Noble metal nanoparticles and phosphine coordination materials for heterogeneous catalysis, sequestration and sensing,” last Friday at the University of California in San Diego, where he was awarded with his Lectureship certificate by ChemComm Advisory Board member Professor Seth Cohen. Congratulations, Simon!

ChemComm Emerging Investigator Lectureship 2014 recipient Simon Humphrey receives his certificate from Professor Seth Cohen after delivering his lecture at the University of California in San Diego

Simon Humphrey with ChemComm Advisory Board members Josh Figueroa (left) and Seth Cohen (right)

Our annual lectureship recognises an emerging scientist in the early stages of their independent academic career.

We will be announcing our 2015 winners soon – watch this space!

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Rotaxane Pulley – To Me, To You

10 Apr 2015

By Iain Larmour, web science writer.

Iain Larmour is a guest web writer for ChemSci. He has researched a wide variety of topics during his years in the lab including nanostructured surfaces for water repellency and developing nanoparticle systems for bioanalysis by surface enhanced optical spectroscopies. He currently works in science management. In his spare time he enjoys reading, photography, art and inventing.

Mechanically interlocked molecules have received ever increasing focus over the last number of years due to their potential to mimic the function of macroscopic devices in the molecular world.

Examples include molecular elevators and molecular muscles and with this Communication Zheng Meng and Chuan-Feng Chen of the CAS Key Laboratory of Molecular Recognition and Function at the Chinese Academy of Sciences in Beijing have added pulley-like shuttling motion to the toolkit.

Molecular pulley system powered by acid and base

Using their previously reported* triptycene-derived crown ether host and combining it with a linear guest with three dibenzylammonium and three N-methyltriazolium sites, they have made a molecular pulley system that mimics the plain rotary motion and linear translocation of full sized pulleys. The movement is powered by acid or base leading to one end of the cable-like guest moving towards the host while the other moves away (picture).

The researchers have not only added to the toolbox of molecular motion components but also provided new insights towards further developing molecular machines.

If you want to make your own molecular pulley read the article today!

To read the details, check out the ChemComm article in full – it’s free to access until 10th May:
A molecular pulley based on a triply interlocked [2]rotaxane
Zheng Meng and Chuan-Feng Chen
Chem. Commun., 2015, 51, Advance Article
DOI: 10.1039/C5CC01301A

*(a) C. F. Chen, Chem. Commun., 2011, 47, 1674–1688 RSC; (b) Y. Han, Z. Meng, Y. X. Ma and C. F. Chen, Acc. Chem. Res., 2014, 47, 2026–2040

**Access is free through a registered RSC account – click here to register

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The Goldilocks of heterogeneous catalysis

09 Apr 2015

By Bethany Johnson.

Hugh Cowley writes about a hot ChemComm article for Chemistry World

An international team of scientists has tethered palladium to a metal–organic framework (MOF) support using thiol groups normally associated with catalyst poisoning. In doing so, the metal centre becomes neither too soluble nor too crowded, but is instead just right for lossless catalysis.

The modified MOF catalyses a coupling reaction between a boronic acid and 4-bromo-2-fluorobenzonitrile

Heterogeneous catalysts, where metal catalysts are supported on an insoluble structure, are easier to recover than soluble homogeneous catalysts. Leaching of the metal catalyst from a support into solution is however a central problem in heterogeneous catalysis. Metals lost to the supernatant can be costly, either in catalyst replacement or additional purification and recovery processes. In drug synthesis there are strict limits on residual metals in active pharmaceutical ingredients. Palladium levels must, for example, be less than 10 ppm for oral intake, and an order of magnitude lower for parenteral exposure.

Read the full article in Chemistry World»

Read the original journal article in ChemComm – it’s free to access until 13th May 2015:
Tackling poison and leach: catalysis by dangling thiol–palladium functions within a porous metal–organic solid
Bo Gui, Ka-Kit Yee, Yan-Lung Wong, Shek-Man Yiu, Matthias Zeller, Cheng Wang and Zhengta Xu
Chem. Commun., 2015,51, 6917-6920
DOI: 10.1039/C5CC00140D, Communication

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A collection of papers in memory of Professor Robert Williams

02 Apr 2015

By Bethany Johnson.

Words: Emma Eley, Development Editor

Professor Robert (Bob) Williams died this March at the age of 89. He was a true pioneer in the field of bio-inorganic chemistry – especially concerning the role of calcium as a biological messenger – and contributed substantially to our understanding of the evolution of life. Professor Williams was often considered as one of the first people to start thinking about metallomics as a field, and will be greatly missed amongst his peers.

In memory of Professor Williams’ huge contribution to the field, we have collated a number of his publications across Metallomics, Dalton Transactions and ChemComm below. We hope you enjoy revisiting some of his exceptional work.

Copper proteomes, phylogenetics and evolution, L. Decaria, I. Bertini, R.J.P. Williams, Metallomics, 2011, 56–60

Zinc proteomes, phylogenetics and evolution, L. Decaria, I. Bertini, R.J.P. Williams, Metallomics, 2010, 706–709

A chemical systems approach to evolution, R.J.P. Williams, Dalton Transactions, 2007, 991–1001

Metallo-enzyme catalysis, R.J.P. Williams, Chemical Communications, 2003, 1109–1113

The chemical elements of life, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1991, 539–546

Temperature study of the solution conformations of aqueous lanthanide(III) complexes containing monodentate ligands, A.L. Du Preez, S. Naidoo, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1988, 2315–2321

A proton NMR study of some CoII complexes containing the N-hexadecyl-iminodiacetate ligand, C.J. Rix, R.J.P. Williams, Journal of the Chemical Society, Chemical Communications, 1986, 203–205

Solution conformation of aqueous lanthanide(III)-antipyrine complexes, A.L. Du Preez, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1986, 1425–1429

Precipitation within unilamellar vesicles. Part 1. Studies of silver(I) oxide formation, S. Mann, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1983, 311–316

Precipitation within unilamellar vesicles. Part 2. Membrane control of ion transport, S. Mann, M.J. Kime, R.G. Ratcliffe, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1983, 771–774

The characterisation of the nature of silica in biological systems, S. Mann, C.C. Perry, R.J.P. Williams, C.A. Fyfe, G.C. Gobbi, G.J. Kennedy, Journal of the Chemical Society, Chemical Communications, 1983, 168–170

New organo-metallic reagents for electron microscopy, S. Mann, R.J.P. Williams, P.R. Sethuraman, M.T. Pope, Journal of the Chemical Society, Chemical Communications, 1981, 1083–1084

Solid state phosphorus NMR spectroscopy of minerals and soils, R.J.P. Williams, R.G.F. Giles, A.M. Posner, Journal of the Chemical Society, Chemical Communications, 1981, 1051–1052

Electron relaxation rates of lanthanide aquo-cations, B.M. Alsaadi, F.J.C. Rossotti, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1980, 2147–2150

Hydration of complexone complexes of lanthanide cations, B.M. Alsaadi, F.J.C. Rossotti, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1980, 2151–2154

Preparation of Ag2O crystallites within phospholipid vesicles and their use in nucleation studies, J.L. Hutchison, S. Mann, A.J. Skarnulis, R.J.P. Williams, Journal of the Chemical Society, Chemical Communications, 1980, 634–635

Studies of lanthanide (III) dipicolinate complexes in aqueous solution. Part 2. Hydration, B.M. Alsaadi, F.J.C. Rossotti, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1980, 813–816

Studies of lanthanide(III) pyridine-2,6-dicarboxylate complexes in aqueous solution. Part 1. Structures and 1H nuclear magnetic resonance spectra, B.M. Alsaadi, F.J.C. Rossotti, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1980, 597–602

Location of biological compartments by high resolution NMR spectroscopy and electron microscopy using magnetite-containing vesicles, S. Mann, A.J. Skarnulis, R.J.P. Williams, Journal of the Chemical Society, Chemical Communications, 1979, 1067–1068

Mapping organic molecules in biological space by high resolution NMR spectroscopy and electron microscopy, A.J. Skarnulis, P.J. Strong, R.J.P. Williams, Journal of the Chemical Society, Chemical Communications, 1978, 1030–1032

An investigation of some potential uses of the gadolinium(III) ion as a structural probe, E.C.N.F. Geraldes, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1977, 1721–1726

Structure of lanthanide(III) mono- and bis-dipicolinates in solution, B.M. Alsaadi, F.J.C. Rossotti, R.J.P. Williams, Journal of the Chemical Society, Chemical Communications, 1977, 527–529

Assignment of the NMR spectrum of iron(III) protoporphyrin IX dicyanide using paramagnetic shift and broadening probes, J.G. Brassington, R.J.P. Williams, P.E. Wright, Journal of the Chemical Society, Chemical Communications, 1975, 338–340

Conformational studies of peroxidase-substrate complexes. Structure of the indolepropionic acid-horseradish peroxidase complex, P.S. Burns, R.J.P. Williams, P.E. Wright, Journal of the Chemical Society, Chemical Communications, 1975, 795–796

The temperature dependence of some physical properties of cobinamides and cobalamins, S.A. Cockle, O.D. Hensens, H.A.O. Hill, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1975, 2633–2634

Conformational studies of lanthanide complexes with carboxylate ligands, B.A. Levine, J.M. Thornton, R.J.P. Williams, Journal of the Chemical Society, Chemical Communications, 1974, 669–670

Ethylenediaminetetra-acetato-lanthanate(III), -praesodimate(III), -europate(III), and -gadolinate(III) complexes as nuclear magnetic resonance probes of the molecular conformations of adenosine 5′- monophosphate and cytidine 5′-monophosphate in solution, C.M. Dobson, R.J.P. Williams, A.V. Xavier, Journal of the Chemical Society, Dalton Transactions, 1974, 1762–1764

Intramolecular nuclear Overhauser effects in proton magnetic resonance spectra of proteins, I.D. Campbell, C.M. Dobson, R.J.P. Williams, Journal of the Chemical Society, Chemical Communications, 1974, 888–889

Lanthanoid(III) cations as nuclear magnetic resonance conformational probes: Studies on cytidine 5′-monophosphate at pH 2, C.D. Barry, C.M. Dobson, R.J.P. Williams, A.V. Xavier, Journal of the Chemical Society, Dalton Transactions, 1974, 1765-1769

Nuclear magnetic resonance spectra of dimeric cupric compounds, W. Byers, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1973, 555–560

Separation of contact and pseudo-contact contributions to shifts induced by lanthanide(III) ions in nuclear magnetic resonance spectra, C.M. Dobson, R.J.P. Williams, A.V. Xavier, Journal of the Chemical Society, Dalton Transactions, 1973, 2662–2664

The effect of 1,3,5-trinitrobenzene on 1H nuclear magnetic resonance and electron paramagnetic resonance spectra of some cobalt(II) porphyrins, H.A.O. Hill, P.J. Sadler, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1973, 1663–1667

Origin of lanthanide nuclear magnetic resonance shifts and their uses, B. Bleaney, C.M. Dobson, B.A. Levine, R.B. Martin, R.J.P. Williams, A.V. Xavier, Journal of the Chemical Society, Chemical Communications, 1972, 791b–793

The chemistry of vitamin B12. Part XVI. Binding of thiols to the cobalt(II) corrins, S. Cockle, H.A.O. Hill, S. Ridsdale, R.J.P. Williams, Journal of the Chemical Society, Dalton Transactions, 1972, 297–302

A method of assigning 13C nuclear magnetic resonance spectra using europium(III) ion-induced pseudocontact shifts and C-H heteronuclear spin decoupling techniques, B. Birdsall, J. Feeney, J.A. Glasel, R.J.P. Williams, A.V. Xavier, Journal of the Chemical Society D: Chemical Communications, 1971, 1473–1474

Methylation by methyl vitamin B12, G. Agnes, S. Bendle, H.A.O. Hill, F.R. Williams, R.J.P. Williams, Journal of the Chemical Society D: Chemical Communications, 1971, 850–851

Kinetics of substitution of co-ordinated carbanions in cobalt(III) corrinoids, H.A.O. Hill, J.M. Pratt, S. Ridsdale, F.R. Williams, R.J.P. Williams, Journal of the Chemical Society D: Chemical Communications, 1970, 341

Thallium(I) as a potassium probe in biological systems, J.P. Manners, K.G. Morallee, R.J.P. Williams, Journal of the Chemical Society D: Chemical Communications, 1970, 965–966

The lanthanide cations as nuclear magnetic resonance probes of biological systems, K.G. Morallee, E. Nieboer, F.J.C. Rossotti, R.J.P. Williams, A.V. Xavier, R.A. Dwek, Journal of the Chemical Society D: Chemical Communications, 1970, 1132–1133

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IRIS-14 Conference

30 Mar 2015

By Cesar Palmero.

Are you ready for the 14th International Symposium on Inorganic Ring Systems (IRIS-14) conference? This exciting conference will be held from the 26th to the 31st of July at the University of Regensburg, Germany.

Dalton Transactions and ChemComm proudly sponsor this symposium, which supports and reinforces the position of research groups worldwide within the large field of main group chemistry. The topics of the symposium cover all modern aspects of main group chemistry in a wide range of disciplines from material sciences to pure academic aspects of research.

Additionally, Manfreed Scheer, Associate Editor of ChemComm, will be organising this fantastic conference. He is Professor (Chair) of Inorganic Chemistry at the University of Regensburg (Bavaria, Germany).

His research interests include the synthesis and investigation of reactivity patterns of unsubstituted main group element ligands with the focus on the heavier group 15 elements as well as the stabilisation and reactivity of main group compounds consisting of combinations of different elements. The chemistry of highly reactive molecules like P₄, As₄ or compounds containing transition metal group 15 element multiple bonds is of further interest.

Read some of Manfred’s latest articles in ChemComm:

Organometallic polyphosphorus and -arsenic ligands as linkers between pre-assembled linear Cu^I fragments
Martin Fleischmann, Luis Dütsch, Mehdi Elsayed Moussa, Andrea Schindler, Gábor Balázs, Christophe Lescop and Manfred Scheer
Chem. Commun., 2015,51, 2893-2895
DOI: 10.1039/C4CC09845E, Communication

Stoichiometry-controlled FeP nanoparticles synthesized from a single source precursor
Cornelia Hunger, Wilfried-Solo Ojo, Susanne Bauer, Shu Xu, Manfred Zabel, Bruno Chaudret, Lise-Marie Lacroix, Manfred Scheer, Céline Nayral and Fabien Delpech
Chem. Commun., 2013,49, 11788-11790
DOI: 10.1039/C3CC46863A, Communication

P–P bond formation via reductive dimerization of [Cp*Fe(η5-P5)] by divalent samarocenes
Tianshu Li, Michael T. Gamer, Manfred Scheer, Sergey N. Konchenko and Peter W. Roesk
Chem. Commun., 2013,49, 2183-2185
DOI: 10.1039/C3CC38841G, Communication

Submit your next top-notch, high impact Communication to

Manfreed Scheer’s Editorial Office

ChemComm is the home of urgent high quality communications from across the chemical sciences. With a world-renowned reputation for quality and fast times to publication (average of 40 days), ChemComm is the ideal place to publish your research.

Dr Heather Montgomery, Deputy Editor of the journal, will be also attending this conference and she hopes to meet many ChemComm and Dalton Transaction readers and authors there. Please do let her know if you will be there.

We look forward to seeing you in Regensburg!

Stay up to date with ChemComm: Be among the first to hear about the newest articles being published – Sign-up to our journal news alert to receive information about most read articles, themed issues, journal news, as well as calls for papers and invitations.

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2015 ChemComm Emerging Investigators Issue – now published

18 Mar 2015

By Jeanne Therese Andres.

We are delighted to announce the publication of the 2015 ChemComm Emerging Investigators issue.

Now on its fifth year, we continue to be overwhelmed by the community’s positive response to this issue, which showcases up-and-coming scientists who are internationally recognised for making outstanding contributions to their respective fields.

The special issue includes a selection of Feature Articles and Communications, as well as a Profile of this year’s contributors, with cool photos to spotlight our authors at work or at play – look out for the famed Faraday Loving Cup, some serious curling, the Great Wall of China, and once again, as last year, a pumpkin is involved! You can also take a look at our previous Emerging Investigator issues in 2011, 2012, 2013, and 2014.

And in case you’re interested to know why spiders are on the issue’s front cover, you can read the backstory.

View the whole Emerging Investigators 2015 collection today.

We invite you to submit your next communication article to ChemComm.

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Enzyme selectivity switch to benefit infant formula production

18 Mar 2015

By Bethany Johnson.

Elisabeth Ratcliffe writes about a hot ChemComm article for Chemistry World

Baby drinking milk from a bottle

Scientists in Austria who have redesigned the active site of an enzyme to switch its regioselectivity may have latched onto a new way to make molecules that are important for infant formula. The engineered enzyme is almost identical to the original, it just catalyses a slightly different reaction to its twin.

Sialylated human milk oligosaccharides play an important role in infant health and development. They occur naturally in breast milk, but synthetic sialylated oligosaccharides are also in demand to enrich infant formula and other nutraceutical products.

Read the full article in Chemistry World»

Read the original journal article in ChemComm – it’s free to access until 27th April:
Complete switch from α-2,3- to α-2,6-regioselectivity in Pasteurella dagmatis β-D-galactoside sialyltransferase by active-site redesign
Katharina Schmölzer, Tibor Czabany, Christiane Luley-Goedl, Tea Pavkov-Keller, Doris Ribitsch, Helmut Schwab, Karl Gruber, Hansjörg Weber and Bernd Nidetzky
Chem. Commun., 2015,51, 3083-3086
DOI: 10.1039/C4CC09772F, Communication

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Group 12 members unite in unusual bonding situation

10 Mar 2015

By Bethany Johnson.

Jennifer Newton writes about a hot ChemComm article for Chemistry World

Chemists in the UK have created the unique trimetallic complex {(^Ar’NacNac)Zn}₂Hg. At the molecule’s heart lies a Zn–Hg–Zn unit – the first example of a bond between two different group 12 metals. What’s more, this metal chain is also the first example of catenation between group 12 elements other than just mercury. And if that wasn’t quirky enough for you, it is also a rare instance of zinc in the +1 oxidation state.

To make the compound, Philip Mountford, from the University of Oxford, and colleagues reduced (^Ar’NacNac)ZnI with a potassium–mercury amalgam. The team is now exploring the chemistry of {(^Ar’NacNac)Zn}₂Hg and its intermetallic homologues.

Read this article in Chemistry World»

Read the original journal article in ChemComm:
Synthesis, molecular and electronic structure, and reactions of a Zn–Hg–Zn bonded complex
Matthew P. Blake, Nikolas Kaltsoyannis and Philip Mountford
Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC00637F, Communication

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Opening the door to poly(ionic liquid)s with enhanced properties

06 Mar 2015

By Kevin Murnaghan, web writer.

Kevin Murnaghan is a guest web-writer for Chemical Communications. He is currently a Research Chemist in the Adhesive Technologies Business Sector of Henkel AG & Co. KGaA, based in Düsseldorf, Germany. His research interests focus primarily on enabling chemistries and technologies for next generation adhesives and surface treatments. Any views expressed here are his personal ones and not those of Henkel AG & Co. KGaA.

Poly(ionic liquid)s, or PILs, are polyelectrolytes whose potential uses are being investigated for a variety of technologies, such as batteries, membranes, solar cells and switchable surfaces. In this ChemComm communication, Professor Eric Drockenmuller and co-workers at the Université de Lyon, University of Liège and the Institut Universitaire de France describe a new family of PILs based on poly(vinyl ester 1,2,3-triazolium)s, which should give rise to new properties and application possibilities.

The materials are prepared from a multistep route making use of `click chemistry´(copper(I) catalysed azide alkyne Huisgen cycloaddition reaction), palladium catalyzed vinyl group exchange, and cobalt mediated radical polymerisation. This route yields a neutral polymer, which is transformed into the poly(ionic liquid) using N-methyl bis[(trifluoromethyl)sulfonyl]imide. This useful reagent alkylates the triazole group present, and delivers the bis[(trifluoromethyl)sulfonyl]imide counterion in one step.

Synthetic route used to yield new poly(vinyl-ester 1,2,3-triazolium)s

The ionic conductivity for the PIL reported is slightly lower than for other types of PIL. To tune this property, a variety of alkynes and azides are being tested in the ring forming step of the reaction, which will result in different substituents on the triazolium ring and on the spacer group between the polymer backbone and triazolium ring. Changes in thermal properties in the the neutral precursor-to-PIL stage of the reaction were measured using broadband dielectric spectroscopy. Significant changes in solubility, and a 9⁰C rise in glass transition temperature to -16⁰C, were observed.

The molecular variety introduced by this new synthetic approach offers large scope for fine tuning the electronic and mechanical material properties of these polyelectrolytes, further enabling their use in important technological applications.

Read this Chemical Communication today – it’s free to access until 3rd April*:

Poly(vinyl ester 1,2,3-triazolium)s: a new member of the poly(ionic liquid)s family
M. M. Obadia, G. Colliat-Dangus, A. Debuigne, A. Serghei, C. Detrembleurb and E. Drockenmuller
DOI: 10.1039/c4cc08847f

*Access is free through a registered RSC account – click here to register

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Chemical Communications Blog

ChemComm Emerging Investigator Lectureship: Tomislav Friščić

ChemComm Emerging Investigator Lectureship: Simon M. Humphrey

Rotaxane Pulley – To Me, To You

The Goldilocks of heterogeneous catalysis

A collection of papers in memory of Professor Robert Williams

IRIS-14 Conference

2015 ChemComm Emerging Investigators Issue – now published

Enzyme selectivity switch to benefit infant formula production

Group 12 members unite in unusual bonding situation

Opening the door to poly(ionic liquid)s with enhanced properties

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