Dalton Transactions Blog

March’s HOT articles

01 Mar 2013

These articles are HOT as recommended by the referees. And we’ve made them free to access for 4 weeks.

Enhancing selective CO₂ adsorption via chemical reduction of a redox-active metal–organic framework
Chanel F. Leong, Thomas B. Faust, Peter Turner, Pavel M. Usov,Cameron J. Kepert, Ravichandar Babarao, Aaron W. Thorntonb and Deanna M. D’Alessandro

Dalton Trans., 2013, DOI: 10.1039/C3DT00083D

Free to access until 22nd April

Formation of zeolite-like zinc 1,3,5-benzenetriphosphonate open-frameworks by topotactic pillaring of anionic layers
Kazuyuki Maeda, Ryohei Takamatsu, Miki Mochizuki, Kanako Kawawa and Atsushi Kondo

Dalton Trans., 2013, DOI: 10.1039/C3DT33037K

Free to access until 22nd April

A highly sensitive luminescent lectin sensor based on an α-D-mannose substituted Tb³⁺ antenna complex
Emma Martín Rodríguez, Nicoleta Bogdan, John A. Capobianco, Simonetta Orlandi, Marco Cavazzini, Chiara Scalera and Silvio Quici

Dalton Trans., 2013, DOI: 10.1039/C3DT33023K

Free to access until 22nd April

Crystallographic and solution NMR structural analyses of four hexacoordinated gallium(III) complexes based on ligands derived from 6-amino-perhydro-1,4-diazepine
David Parker, Bradley P. Waldron and Dmitry S. Yufit

Dalton Trans., 2013, DOI: 10.1039/C3DT50287B

Free until 22nd April

Merging catalysis and supramolecular aggregation features of triptycene based Zn(salphen)s
Daniele Anselmo, Giovanni Salassa, Eduardo C. Escudero-Adán, Eddy Martin and Arjan W. Kleij

Dalton Trans., 2013, DOI: 10.1039/C3DT00067B

Free until 22nd April

Argentivorous molecules with two kinds of aromatic side-arms: intramolecular competition between side-arms
Yoichi Habata, Yosuke Oyama, Mari Ikeda and Shunsuke Kuwahara

Dalton Trans., 2013, DOI: 10.1039/C3DT00034F

Free until 22nd April

Comparative study of structures, thermal stabilities and dielectric properties for a ferroelectric MOF [Sr(μ-BDC)(DMF)]_∞ with its solvent-free framework
Ping-Chun Guo, Zhenyu Chu, Xiao-Ming Ren, Wei-Hua Ning and Wanqin Jin

Dalton Trans., 2013, DOI: 10.1039/C3DT32880E

Free to access until 20th April

A well-defined model system for the chromium-catalyzed selective oligomerization of ethylene
Wesley H. Monillas, John F. Young, Glenn P. A. Yap and Klaus H. Theopold

Dalton Trans., 2013, DOI: 10.1039/C3DT00109A

Free to access until 20th April

Advancing the Chemistry of the Actinides deadline extended

21 Feb 2013

By Fiona McKenzie, Executive Editor.

Last chance to submit your oral abstract

You may have thought you had missed your chance to submit an abstract for Advancing the Chemistry of the Actinides – Dalton Discussion 14.

However, as a result of requests from the scientific community we are extending the deadline until 4 March – but please don’t delay!

This Dalton Discussion will highlight the burgeoning role and exciting prospects for actinides in modern, metal-based chemistry, focusing on the following themes:

•   Probing structure and bonding in actinide compounds
•   Actinide properties and materials applications
•   Advances in actinide reactivity and catalysis
•   Actinides in the environment

See full details of submitting your abstract

We do hope you will take the opportunity to join this Discussion where you will be able to hear from these excellent speakers:

Keynote

Geoff Cloke
University of Sussex, UK
Melissa Denecke
Karlsruhe Institute of Technology, Germany
Laurent Maron
Université Paul Sabatier, Toulouse, France
Jeffrey Long
University of California, Berkeley, USA

Invited

Nik Kaltsoyannis
University College London, UK
Marinella Mazzanti
CEA, Grenoble, France
Paula Diaconescu
University of California, Los Angeles, USA
Jonathan Lloyd
University of Manchester, UK

In addition you can take advantage of networking with other delegates with interest and experience in actinide chemistry, at both the interactive poster sessions and the conference dinner.

Comments Off on Advancing the Chemistry of the Actinides deadline extended

February’s HOT articles

05 Feb 2013

By Fiona McKenzie, Executive Editor.

These articles are HOT as recommended by the referees. And we’ve made them free to access for 4 weeks.

Solvent-modified dynamic porosity in chiral 3D kagome frameworks
Tony D. Keene, Damien Rankine, Jack D. Evans, Peter D. Southon, Cameron J. Kepert, Jade B. Aitken, Christopher J. Sumby and Christian J. Doonan

Solvent-modified dynamic porosity in chiral 3D kagome frameworks

Photoinduced charge transfer involving a MoMo quadruply bonded complex to a perylene diimide
Brian G. Alberding, Samantha E. Brown-Xu, Malcolm H. Chisholm, Arthur J. Epstein, Terry L. Gustafson, Sharlene A. Lewis and Yong Min

Spectral signature of a Ru(II, III, IV) complex: a combined experimental and theoretical investigation
Jacques Bonvoisin and Ilaria Ciofini

Electronic structure and soft-X-ray-induced photoreduction studies of iron-based magnetic polyoxometalates of type {(M)M₅}₁₂Fe^III₃₀ (M = Mo^VI, W^VI)
Karsten Kuepper, Christine Derks, Christian Taubitz, Manuel Prinz, Loïc Joly, Jean-Paul Kappler, Andrei Postnikov, Wanli Yang, Tatyana V. Kuznetsova, Ulf Wiedwald, Paul Ziemann and Manfred Neumann

Palladium complexes with stabilized germylene and stannylene ligands
Marina M. Kireenko, Kirill V. Zaitsev, Yuri F. Oprunenko, Andrei V. Churakov, Viktor A. Tafeenko, Sergey S. Karlov and Galina S. Zaitseva

Heterolytic activation of dihydrogen by platinum and palladium complexes
Karina Q. Almeida Leñero, Yannick Guari, Paul C. J. Kamer, Piet W. N. M. van Leeuwen, Bruno Donnadieu, Sylviane Sabo-Etienne, Bruno Chaudret, Martin Lutz and Anthony L. Spek

Highly fluorescent complexes with gold, palladium or platinum linked to perylene through a tetrafluorophenyl group
Sergio Lentijo, Gabriel Aullón, Jesús A. Miguel and Pablo Espinet

The Tolman electronic parameter (TEP) and the metal–metal electronic communication in ditopic NHC complexes
Dmitry G. Gusev and Eduardo Peris

A different route to functional polyolefins: olefin–carbene copolymerisation
Nicole M. G. Franssen, Joost N. H. Reek and Bas de Bruin

Comments Off on February’s HOT articles

Remarkable stability demonstrated by tungstenacyclobutadiene complexes

30 Jan 2013

By Jennifer Newton, Publishing Editor.

This article is HOT as recommended by the referees. And we’ve made it free to access for 4 weeks.

Adam Veige and colleagues from the University of Florida, USA, report the successful isolation of the neutral ONO^3- trianionic pincer-type tungsten alkylidyne complex [CF₃–ONO]WΞC(^tBu)(OEt₂).

Cyclooctyne, which is normally polymerised due to its internal ring strain, reacts rapidly with the pincer-type tungsten alkylidyne complex to give the first example of a bicyclic metallacyclobutadiene. The pincer-type tungsten alkylidyne complex was also treated with alkyne substrates 1-phenylpropyne and 4,4-dimethyl-2-pentyne to give two more tungstenacyclobutadienes. The three tungstenacyclobutadienes made in this study all exhibit incredible stability.

Download the paper today to read how the team have explored the factors contributing to this stability.

Unusually stable tungstenacyclobutadienes featuring an ONO trianionic pincer-type ligand
Matthew E. O’Reilly, Ion Ghiviriga, Khalil A. Abboud and Adam S. Veige
Dalton Trans., 2013
DOI: 10.1039/C2DT32653A

You might also be interested in this Dalton Transactions article by the same authors:

The influence of reversible trianionic pincer OCO³⁻μ-oxo Cr^IV dimer formation ([Cr^IV]₂(μ-O)) and donor ligands in oxygen-atom-transfer (OAT)
Matthew E. O’Reilly, Trevor J. Del Castillo, Khalil A. Abboud and Adam S. Veige
Dalton Trans., 2012,41, 2237-2246
DOI: 10.1039/C1DT11104C, Paper

Comments Off on Remarkable stability demonstrated by tungstenacyclobutadiene complexes

Crystal structure of a face-sharing fluoroaluminate anion

30 Jan 2013

By Leah Morris, Web Writer.

Leah is a guest web-writer for the Dalton Transactions blog. She is currently working towards her PhD at the University of Glamorgan.

Fluorides of aluminium are used in the aluminium industry and also as catalysts for ozone friendly alternatives to chlorofluorocarbons (CFC’s). Previously, crystal structures of some fluoroaluminate anions have been solved by the introduction of either organic or metal cations. But until now, the crystal structure of a particular fluoroaluminate anion, the bioctahedral Al₂F₉^3- anion had not been reported.

The crystal structure of this anion has recently been solved by Rika Hagiwara and colleagues at Kyoto University. They first synthesized the compound, [C₁₈MIm][AlF₄] (1-methyl-3-octadecylimidazolium tetrafluoroaluminate) and discovered that slow evaporation of the chloroform solution gave transluscent crystals of [C₁₈MIm]₃[Al₂F₉](CH₂Cl₂)_n. It is thought that this species was formed by the reaction below:

3[C₁₈MIm][AlF₄] + nCH₂Cl₂ → [C₁₈MIm]₃[Al₂F₉](CH₂Cl₂)_n + AlF₃

The Al₂F₉^3-anion has two octahedral AlF₆ units which are face-sharing and has D_3h symmetry.

To find out more, read the full Dalton Transactions article:

The first crystallographic example of a face-sharing fluoroaluminate anion Al₂F₉³⁻
Fei Xu, Kazuhiko Matsumoto and Rika Hagiwara

Comments Off on Crystal structure of a face-sharing fluoroaluminate anion

Meet us in 2013

14 Jan 2013

By Fiona McKenzie, Executive Editor.

With the start of the calendar year, its as good a time as any to get thinking about where our 2013 travels will take us…

We are planning to attend the following conferences. Will you be there too?

245^th ACS National Meeting & Exposition, New Orleans, USA, 7th April 2013
96^th Canadian Chemistry Conference and Exhibition, Québec, Canada, 26th May 2013
23^rd North American Catalysis Society meeting, Louisville, USA, 2nd June 2013
10^th Congress on Catalysis Applied to Fine Chemicals, Turku, Finland, 16th June 2013
20^th EuCheMS Conference on Organometallic Chemistry, 30th June 2013, St Andrews, UK
Gordon Research Conference: Organometallic Chemistry, Newport, Rhode Island, USA, 8th July 2013
EuropaCat 2013, Lyon, France, 1st September 2013
246^th ACS National Meeting & Exposition, Indianapolis, USA, 8th September 2013

Please do let us know if you think you’ll be attending – we’d love to meet you!
	Jamie Humphrey, Editor	Fiona McKenzie, Deputy Editor

Comments Off on Meet us in 2013

Step-wise heterometallic cluster synthesis enables tuning of magnetic properties

11 Jan 2013

By Jennifer Newton, Publishing Editor.

This article is HOT as recommended by the referees. And we’ve made it free to access for 4 weeks.

Scientists in Italy and Brazil report a new synthesis for making heteronuclear propeller-like single molecule magnets (SMMs) that could be used to design structures with a variety of d- and f-block metals and R groups, yielding 100% pure complexes without metal scrambling.

There is considerable interest in manipulating SMMs to have higher ground spin states, enhanced magnetic properties and increased robustness for possible future applications in quantum computing. In this study, Roberta Sessoli and colleagues use a central chromium(III) ion in their synthesis of Fe₃Cr propeller-like aggregates to show that molecular ground spin state can be altered by selectively changing the spin state of the metal ion.

The chemically inert chromium(III) produces a kinetically stable central “core” which then combines with the dimeric iron(III) starting material to give propeller-like complexes

The synthetic method could potentially be tailored to produce propeller-like SMMs with particular properties.

Read more about the synthesis for free at…

A new approach to the synthesis of heteronuclear propeller-like single molecule magnets
Pasquale Totaro, Kátia Cristina M. Westrup, Marie-Emmanuelle Boulon, Giovana G. Nunes, Davi F. Back, Andersson Barison, Samuele Ciattini, Matteo Mannini, Lorenzo Sorace, Jaísa F. Soares, Andrea Cornia and Roberta Sessoli
Dalton Trans., 2013
DOI: 10.1039/C2DT32618C

Here are some other Dalton Transactions articles by the same authors:

Lanthanides in molecular magnetism: so fascinating, so challenging
Javier Luzon and Roberta Sessoli
Dalton Trans., 2012, 41, 13556-13567
DOI: 10.1039/C2DT31388J, Perspective
From themed issue Frontier and Perspectives in Molecule-Based Quantum Magnet

Magnetic and optical bistability in tetrairon(III) single molecule magnets functionalized with azobenzene groups
Thazhe Kootteri Prasad, Giordano Poneti, Lorenzo Sorace, Maria Jesus Rodriguez-Douton, Anne-Laure Barra, Petr Neugebauer, Luca Costantino, Roberta Sessoli and Andrea Cornia
Dalton Trans., 2012, 41, 8368-8378
DOI: 10.1039/C2DT30172E, Paper

Dimers and chains of {3d–4f} single molecule magnets constructed from heterobimetallic tectons
Traian D. Pasatoiu, Mael Etienne, Augustin M. Madalan, Marius Andruh and Roberta Sessoli
Dalton Trans., 2010, 39, 4802-4808
DOI: 10.1039/B925425K, Paper
From themed issue Molecular magnets

Are you following us on Twitter? @DaltonTrans

Comments Off on Step-wise heterometallic cluster synthesis enables tuning of magnetic properties

IUPAC Provisional Recommendations on Metal-Organic Framework and Coordination Polymer Terminology

08 Jan 2013

By Matthew Cude, Development Editor.

The IUPAC task group: Coordination polymers and metal organic frameworks: terminology and nomenclature guidelines have published provisional recommendations. The article can be accessed directly here and any comments can be directed to the task group chair, Professor Lars Öhrström.

The task group was set-up in 2009 to document, analyse and evaluate the use of nomenclature and terminology in the areas of coordination polymers and metal-organic frameworks. As well as meeting on three occasions the group also published a Highlight article detailing the need for terminology guidelines and the provisional recommendations, which include the following definitions:

Term	Definition
Coordination Polymer	A coordination compound continuously extending in 1, 2 or 3 dimensions through coordination bonds
Coordination Network	A coordination compound extending, through coordination bonds, in 1 dimension, but with cross-links between two or more individual chains, loops or spiro-links, or a coordination compound extending through coordination bonds in 2 or 3 dimensions
Metal-Organic Framework	Metal-Organic Framework, abbreviated to MOF, is a Coordination Polymer (or alternatively Coordination Network) with an open framework containing potential voids

There are also recommendations on net and network topology, topology descriptors, nomenclature and the use of other terms (which explicitly discourages the term “hybrid organic-inorganic materials”)

Download the full article for the complete recommendations and take a look at the Highlight article published last year

Coordination polymers, metal–organic frameworks and the need for terminology guidelines
Stuart R. Batten, Neil R. Champness, Xiao-Ming Chen, Javier Garcia-Martinez, Susumu Kitagawa, Lars Öhrström, Michael O’Keeffe, Myunghyun Paik Suh and Jan Reedijk
CrystEngComm, 2012, 14, 3001-3004
DOI: 10.1039/C2CE06488J

Comments Off on IUPAC Provisional Recommendations on Metal-Organic Framework and Coordination Polymer Terminology

Dalton Discussion 14 – Advancing the chemistry of actinides

03 Jan 2013

By Fiona McKenzie, Executive Editor.

Get the date in your diary for this year’s upcoming Dalton Discussion

Now welcoming abstract submissions for Dalton Discussion 14 – Advancing the Chemistry of Actinides

16^th–18^th September 2013, Edinburgh, UK

Confirmed speakers:	Geoff Cloke, University of Sussex, UK
	Melissa Denecke, Karlsruhe Institute of Technology, Germany
	Laurent Maron, Université Paul Sabatier, Toulouse, France
	Jeffrey Long, University of California, Berkeley, USA
	Nik Kaltsoyannis, University College London, UK
	Marinella Mazzanti, CEA, Grenoble, France
	Paula Diaconescu, University of California, Los Angeles, USA
	Jonathan Lloyd, University of Manchester, UK

This Dalton Discussion aims to highlight the burgeoning role, and exciting prospects for actinides in modern, metal-based chemistry. Abstracts for oral presentations must be sent in before 15^th February 2013.

Authors of the selected oral abstracts will then be expected to submit their work as a full paper, which will form the basis of their short presentation at the Discussion meeting. The paper itself must contain new, unpublished work and be submitted for review to the Editorial Office of Dalton Transactions by 16^th August 2013. At the conference, each author will be given approximately 5 minutes to summarise the key points of their paper in order to leave the majority of time open for discussion

This year, Dalton Discussion 14 is adopting a new process. Papers presented at Dalton Discussions will continue to be published in a dedicated themed issue of Dalton Transactions, however article peer-review will now take place after the Discussion. This means that speakers have longer to make the finishing touches to their article before the papers are made available online prior to the meeting.

To find out more about Dalton Discussion 14 and to submit your abstract, visit the dedicated RSC webpage.

Comments Off on Dalton Discussion 14 – Advancing the chemistry of actinides

Phosphinimine-borane frustrated Lewis pairs

21 Dec 2012

By Leah Morris, Web Writer.

The current issue of Dalton Transactions is a themed issue on boranes and borohydrides, of which one of the cover articles by Chunfang Jiang and Douglas W. Stephan explores phosphinimine-boranes in frustrated Lewis pair chemistry. Frustrated Lewis pairs are entities that consist of a Lewis acid and a Lewis base which, because of sterics, do not form an adduct. These systems are very reactive and are able to activate H₂, CO₂, and olefins amongst others without the need for a transition metal catalyst.

In this article, a series of phosphinimines (species contanining a phosphorous-nitrogen double bond) were combined with B(C₆F₅)₃ and in one case a Lewis acid-base adduct was formed. The reactivity of the adduct was compared to the other cases where frustrated Lewis pairs were generated. Remarkably, the researchers discovered that both the adduct and the frustrated Lewis pairs were able to activate H₂, CO₂ and phenylacetylene.

This work paves the way for discovering even more acid base combinations that could be used in frustrated Lewis pair systems for catalysis without the need for transition metals.

To find out more, read the full Dalton Transactions article:

Phosphinimine–borane combinations in frustrated Lewis pair chemistry
Chunfang Jiang and Douglas W. Stephan
Dalton Trans., 2013, 42, 630-637

Comments Off on Phosphinimine-borane frustrated Lewis pairs

Dalton Transactions Blog

March’s HOT articles

Advancing the Chemistry of the Actinides deadline extended

February’s HOT articles

Remarkable stability demonstrated by tungstenacyclobutadiene complexes

Crystal structure of a face-sharing fluoroaluminate anion

Meet us in 2013

Step-wise heterometallic cluster synthesis enables tuning of magnetic properties

IUPAC Provisional Recommendations on Metal-Organic Framework and Coordination Polymer Terminology

Dalton Discussion 14 – Advancing the chemistry of actinides

Phosphinimine-borane frustrated Lewis pairs

Links

Categories

Archives

Meta