The role of functional bidentate ligands in catalysis provides a versatile tool for fine tuning the performance of catalysts (Lewis base – Lewis acid interactions).
Read more for FREE until 29th November at:
A phosphino-oxazoline ligand as a P,N-bridge in palladium/cobalt or P,N-chelate in nickel complexes: catalytic ethylene oligomerization
Shuanming Zhang, Roberto Pattacini, Suyun Jie and Pierre Braunstein
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT11352F
Luminescent iridium complex surfactants form spherical aggregates in water, changing from red to green on aggregation, scientists from Germany and Italy have discovered.
The team, led by Luisa De Cola, say that the aggregates have different properties to the single components, and that the change between them could enable this system to be used as a probe for bio-imaging and bio-labelling. Read more in their Hot Article – free to access until the 29th November 2011.
Aggregation induced colour change for phosphorescent iridium(III) complex-based anionic surfactants
Matteo Mauro, Gabriele De Paoli, Matthias Otter, Daniela Donghi, Giuseppe D’Alfonso and Luisa De Cola
Dalton Trans., 2011, DOI: 10.1039/C1DT11251A
1,1′-((4,6-dimethyl-1,3-phenylene)bis(methylene))bis(3-methyl-1H-imidazol-3-ium) in
the presence of Cs2CO3 and [Ir(µ-Cl)(cod)]2. Its solid-state structure, determined by X-ray
diffraction, shows a figure-of-eight loop with both the P and M enantiomers being present. Solution NMR studies were also performed to examine the enantiodiscrimination between them.
Read more for FREE until the 29th November 2011 at:
Chiral anion-based NMR enantiodiscrimination of a dinuclear, cationic Ir(I) NHC complex with a figure-of-eight loop structure
Xianghao Liu, Jérôme Lacour and Pierre Braunstein
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11604E
Also read about the formation of unprecedented eight-membered chelates at:
Contrasting bonding modes of a tridentate bis(oxazoline)phosphine ligand in cobalt and iron vs. palladium complexes: unprecedented N,N-coordination for a N,P,N ligand
Anthony Kermagoret and Pierre Braunstein
Dalton Trans., 2008, 585-587
DOI: 10.1039/B717021C
Professor Philip Mountford
We are delighted and thrilled to announce that Professor Philip Mountford, from the University of Oxford, UK, has been appointed as the new Chair of the Dalton Transactions Editorial Board, with effect from 1st January 2012.
Philip’s research interests centre around studies of the bonding and stoichiometric and catalytic reactivity of organometallic and related compounds of the early transition and lanthanide metals, and, more recently, the alkaline earth metals. This research has a particular emphasis on compounds with metal-nitrogen multiple bonds, olefin polymerization and ring-opening polymerization towards “green” polymers. Philip is a Fellow of the Royal Society of Chemistry and a past recent recipient of the RSC’s Sir Edward Frankland Fellowship. He has been a Visiting Professor at several European universities and recently served as Acting Head of Inorganic Chemistry in Oxford.
Of his forthcoming role, Philip says: “I am delighted and honored to be taking over from Chris Orvig as Chair of the Editorial Board of Dalton Transactions at such an exciting time in the journal’s history. During my period as Chair, I will strive, together with Jamie Humphrey and the RSC editorial team, the Editorial Board and the Advisory Board, to not only maintain but to exceed Dalton Transactions’ current position and its reputation for quality papers, fair and robust refereeing, excellent technical support and impressive submission to publication times.”
We’d like to take this opportunity to thank the outgoing Chair, Professor Chris Orvig, who has successfully led the Editorial Board through a period of significant achivements for the journal. Chris’ term of office finishes at the end of 2011.
Read some of Philip Mountford’s recently published articles by following the links below:
Titanium alkoxyimido (Ti=N–OR) complexes: reductive N–O bond cleavage at the boundary between hydrazide and peroxide ligands
Andrew D. Schwarz, Ainara Nova, Eric Clot and Philip Mountford
Chem. Commun., 2011, 47, 4926-4928
DOI: 10.1039/C1CC10862J
Low-coordinate rare-earth complexes of the asymmetric 2,4-di-tert-butylphenolate ligand prepared by redox transmetallation/protolysis reactions, and their reactivity towards ring-opening polymerisation
Lawrence Clark, Glen B. Deacon, Craig M. Forsyth, Peter C. Junk, Philip Mountford and Josh P. Townley
Dalton Trans., 2010, 39, 6693-6704
DOI: 10.1039/C0DT00023J
Read more for FREE until mid-November:
Sulfonate-tagged 1,4-diazabutadiene (DADS) ligands and their noble-metal complexes – synthesis, characterization and immobilization in ionic liquids
Benjamin Oelkers and Jörg Sundermeyer
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT10939A
Read more about these gold complexes for FREE until mid-November at:
P–H activation using alkynylgold substrates: steric and electronic effects
Gerald F. Manbeck, Mark C. Kohler, Meghan R. Porter and Robert A. Stockland Jr.
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT11337B
Mike George, Paul Raithby and co-workers using photocrystallography to identify isomers in a nickel complex. Photocrystallography allows the groups to study metastable linkage isomers and they have shown that the technique provides scope for the identification of new species.
Photocrystallography involves the photo-activation of species within a crystalline lattice. It brings a dynamic aspect to X-ray crystallographic experiments, so that reactions within a crystal can be monitored as they occur or the structures of molecules in metastable or short-lived photo-activated states can be determined. Read more about the group’s findings in their Dalton Transactions Hot Article:
Photocrystallographic identification of metastable nitrito linkage isomers in a series of nickel(II) complexes 
Simon K. Brayshaw, Timothy L. Easun, Michael W. George, Alexandra M. E. Griffin, Andrew L. Johnson, Paul R. Raithby, Teresa L. Savarese, Stefanie Schiffers, John E. Warren, Mark R. Warren and Simon J. Teat
Dalton Trans., 2011, DOI: 10.1039/C1DT11379H
Phalguni Chaudhuri and colleagues, from the Max-Planck-Institut in Mulheim, Germany, investigate the interactions between a potentially tetradentate tripodal ligand and the biologically important metal, Vanadium. What were the resulting complexes? Find out in their Hot Article – FREE to read until mid November.
Non-oxo 5-coordinate and 6-coordinate vanadium(IV) complexes with their precursor [LVIII(CH3OH)]0, where L = a trianionic aminetris(phenolate)-[N,O,O,O] donor ligand: a magnetostructural and EPR study
Takashi Kajiwara, Rita Wagner, Eckhard Bill, Thomas Weyhermüller and Phalguni Chaudhuri
Dalton Trans., 2011, DOI: 10.1039/C1DT11277E
In their Dalton Trans. Hot Article, a group of Japanese chemists led by Hisako Sato, used vibrational circular dichroism (VCD) spectroscopy to study the stereochemical properties of a star-burst type tetranuclear Ru(III) complex. By comparing the VCD spectra of eight diastereomeric enantiomers, they were able to see the homo- or hetero-chiral nature of the bridging part of the compound which connected the central core and the peripheral region
Chirality effects on core-periphery connection in a star-burst type tetranuclear Ru(III) complex: application of vibrational circular dichroism spectroscopy
Hisako Sato, Fumi Sato, Masahiro Taniguchi and Akihiko Yamagishi
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11510C
Some of the speakers at Erlangen
Congratulations to Florian Pfaff from the Humboldt-Universität zu Berlin, Germany winner of the Dalton Transactions poster prize at the 3rd Erlangen Symposium earlier this month!
The symposium, organised by Professor Karsten Meyer, covered the topic of Redox-Active Metal Complexes: Control of Reactivity via Molecular Architecture and took place in from October 5th–October 8th, 2011 in Friedrich-Alexander-University Erlangen-Nuremberg in the north of Bavaria.
Professor Dan Nocera at a poster session
Redox-active metal complexes are central to many fundamental processes that involve redox transformations of small molecules of industrial and biological relevance, like H2O, N2, NO, H2, O2, CO, and CO2. Research devoted to identifying and mimicking the “structure-function” relationships, which govern the metal complex catalyzed reactions, is essential in order to design novel species capable of catalyzing industrially relevant small molecule transformations.
Speakers included Dan Nocera, Geoff Cloke, Kenneth Karlin, Wonwoo Nam, Paul Chirik, Serena DeBeer, Felix Castellano, Hiroyuki Kawaguchi, Lechoslaw Latos-Grazynski, Frank Neese, Moritz Sokolowski, Felix Tuczek, Michael Wasielewski and Jeremy Smith. This conference aimed to bring together international junior and senior experts to report on and discuss their current research in this field. The conference delegates also had the opportunity to see more of Bavaria on the social activities and of course, to sample the local beer!
More information on the meeting can be found here. And why not also find out more about some of the symposium’s speakers:
The latest ChemComm Highlight from Dan Nocera:
Photocatalytic hydrogen production
Thomas S. Teets and Daniel G. Nocera
Chem. Commun., 2011, 47, 9268-9274 DOI: 10.1039/C1CC12390D
Geoff Cloke’s recent themed issue:
Dalton Transactions Themed Issue on ‘New horizons in organo-f-block chemistry‘ guest edited by Geoff Cloke.
Kenneth Karlin and Wonwoo Nam:
Spectroscopic and computational characterization of CuII–OOR (R = H or cumyl) complexes bearing a Me6-tren ligand
Yu Jin Choi, Kyung-Bin Cho, Minoru Kubo, Takashi Ogura, Kenneth D. Karlin, Jaeheung Cho and Wonwoo Nam
Dalton Trans., 2011, 40, 2234-2241, DOI: 10.1039/C0DT01036G, Paper
This article features in the recent themed issue New Talent: Asia
Find out more about Jeremy Smith in this recent Chemistry World interview
Check out Karsten’s recent Chemical Science Edge Article:
Activation of elemental S, Se and Te with uranium(III): bridging U–E–U (E = S, Se) and diamond-core complexes U–(E)2–U (E = O, S, Se, Te)
Oanh P. Lam, Frank W. Heinemann and Karsten Meyer
Chem. Sci., 2011, 2, 1538-1547 DOI: 10.1039/C1SC00151E
Paul Chirik’s latest Dalton Trans. article:
Cyclisation of α,ω-dienes promoted by bis(indenyl)zirconium sandwich and ansa-titanocene dinitrogen complexes
Doris Pun, Donald J. Knobloch, Emil Lobkovsky and Paul J. Chirik
Dalton Trans., 2011, 40, 7737-7747 DOI: 10.1039/C1DT10149
Were you at the meeting yourself? Or perhaps you also work on redox-active metal complexes? Tell us about your experience by posting a comment on this blog post below…..
