Author Archive

Dalton Transactions impact factor increases to 3.84!

Dalton TransactionsThe 2011 Journal Citation Reports ® (Thomson Reuters, 2012) have been released and the Dalton Transactions impact factor* has increased to 3.84!

We would like to thank all our authors, readers and referees who have contributed towards this success. Our thanks also go to our Editorial and Advisory Board Members and our Associate Editors for all their hard work and dedication to the journal.

A full list of RSC successes can be found at the RSC Impact Factor release.

For more information about Dalton Transactions, including how to submit your research, check out the journal homepage.

*The IF provides an indication of the average number of citations per paper. Produced annually, IFs are calculated by dividing the number of citations in a year, by the number of citeable articles published in the preceding two years.

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Confused porphyrins transport oxygen atoms

Unique cooperation has been observed between rhenium atoms and non-innocent N-confused porphyrin ligands in new oxorhenium(V) complexes.

The simplest porphyrin, porphine (left), and the N-confused porphyrin used to synthesize unique oxorhenium complexes.

Hiroyuki Furuta et al. have synthesised two new porphyrin oxorhenium(V) complexes which have been shown to be remarkably effective at oxygen atom transport. Through a catalytic process the oxygen atom from pyridine N-oxide can be transferred to PPh3 in a 97% yield, notably higher than that of some other rhenium(V) complexes. The authors propose that the reason for their success is the existence of a Re-C bond, believing that this bond is important for efficient oxygen transport.

Atom transport is at the heart of successful catalysis, and as usual nature has already beaten us to it. Galactose oxidase for example converts a primary alcohol into an aldehyde by transporting a hydrogen atom from one part of the enzyme to another. But if the oxygen atom transfer seen in these synthetic N-confused porphyrin oxorhenium(V) complexes can be extended to other systems, exciting advancements in the field of catalysis could be on the horizon.

l

To find out more about these exciting new complexes and the atom transport they facilitate, take a look at the full Dalton Transactions communication.

Cooperation between metal and ligand in oxygen atom transport by N-confused porphyrin oxorhenium(V) complexes
Takaaki Yamamoto, Motoki Toganoh and Hiroyuki Furuta

l

By Katie Renouf, Web Writer

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Upcoming Conference: Eurobic 2012

The 11th European Biological Inorganic Chemistry Conference (Eurobic 11) will be in Granada, Spain, from September 12-16, 2012.

The sessions will take place in the Conference Centre of Granada, in a beautiful part of the city within a few minutes walking distance to local hotels. The event is being hosted by the Inorganic Chemistry Department at the Faculty of Pharmacy of the University of Granada, under the auspices of the University of Granada (UGR).

The conference will cover all topics of biological inorganic chemistry and includes lectures from the following plenary speakers

John H. Dawson, University of South Carolina, USA
Henryk Kozlowski, University of Wroclaw, Poland
Luis Liz Marzan, University of Vigo, Spain
Claudio Luchinat, University of Florence
Juan Manuel García Ruiz, Granada, Spain
Roland K.O. Sigel, University of Zurich, Switzerland
Montserrat Filella, University of Geneva, Switzerland
Thomas Hamelryck, University of Copenhagen, Denmark
Michael John Hannon, University of Birmingham, UK

l

Registration to the conference is still open and you can find out more details by visiting the Eurobic11 website.

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Helicate or catenate?

The team expected the assembly to form a helicate rather than catenate structure

Predicting the structure of large self-assembled units can become very complicated very quickly. Yet it is important for the rational design of new structures to understand how they assemble so new arrangements can be designed, with functional and valuable properties.

This Hot Article from the Piguet group investigates whether a pyridyl-benzimidazole ligand forms a double stranded helicate or a catenated architecture. The thermodynamic approach used to investigate the structures throws up some interesting results.

Looking for the origin of the switch between coordination-captured helicates and catenates
Lilit Aboshyan-Sorgho, Martine Cantuel, Gérald Bernardinelli and Claude Piguet
DOI: 10.1039/C2DT30414G

Love inorganic chemistry? Follow us @DaltonTrans

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Themed issue: Application of inorganic chemistry for non-cancer therapeutics

Application of inorganic chemistry for non-cancer therapeutics

Application of inorganic chemistry for non-cancer therapeutics

Issue 21 of Dalton Transactions is a special issue focusing on therapeutic agents being developed in inorganic chemistry. The collection of articles showcases the variety of techniques and strategies employed by inorganic chemists to target a range of diseases and illnesses.

The Perspective by Pascale Delangle and Elizabeth Mintz overviews the use of copper chelation therapy in the treatment of Wilson’s disease (C2DT12188C), while Christophe Biot et al. discuss the therapeutic potential of metal-based antimalarial agents (C2DT12247B). Targeting is a prevailing theme in the issue and the paper from Chris Orvig et al. is no exception (C2DT12050J), while the contribution from Edward Tiekink (C2DT12225A) investigates the potential of selenium and tellurium compounds.

You can read the editorial from the issue’s Guest Editor Professor Katherine J. Franz, who succinctly runs through the contributions from all the issue authors. You can also browse the issue here and read the truly remarkable progress that the application of inorganic chemistry is having for non-cancer therapeutics.

Previous themed issues which cover emerging topics in inorganic chemistry can be found listed under the themed issue tab on the journal homepage.

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

When 3nm is huge

The packing structures of ionic crystals is an interesting field of study and this Hot Communication by Masaki Saito and Tomoji Ozeki is certainly no exception!

A Sr2+ salt of [MoVI72MoV60O372(CH3COO)30(H2O)72]42− exhibits a superposed kagome-lattice with huge channels whose diameters measure approximately 3.0 nm

Huge channels in a superposed kagome-lattice

The pair from the Ozeki Research Group have determined the crystal structures of a couple of interesting structures, one of which “exhibits a superposed kagome-lattice with huge channels whose diameters measure approximately 3.0 nm”.

To read more about these new compounds you can download the full paper below

Crystallization of a Keplerate-type polyoxometalate into a superposed kagome-lattice with huge channels
Masaki Saito and Tomoji Ozeki

You might also be interested in a few other papers on polyoxometalates, which along with this article will be published in our upcoming themed issue focusing on the topic.

Orientations of polyoxometalate anions on gold nanoparticles
Shelly Sharet, Ella Sandars, Yifeng Wang, Offer Zeiri, Alevtina Neyman, Louisa Meshi and Ira A. Weinstock

A co-crystal of polyoxometalates exhibiting single-molecule magnet behavior: the structural origin of a large magnetic anisotropy
Xikui Fang, Kendall McCallum, Harry D. Pratt III, Travis M. Anderson, Kevin Dennis and Marshall Luban

Want to keep up with inorganic chemistry? follow us @DaltonTrans

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Articles from around the world: USA

Inorganic chemistry USA Dalton free articles

Dalton Transactions publishes articles from around the globe

Dalton Transactions has been publishing research in inorganic chemistry for over 40 years, from over 85 countries. To highlight some of the contributions from across the globe we will be selecting a different geographic region each month, collecting some high impact papers and making them free to access! This month, the USA……

Rapid catalytic water oxidation by a single site, Ru carbene catalyst
Zuofeng Chen, Javier J. Concepcion and Thomas J. Meyer
Dalton Trans., 2011,40, 3789-3792

Hydro-ionothermal syntheses, crystal structures, and properties of five new divalent metal iminophosphonates
Kevin J. Gagnon, Andrey V. Prosvirin, Kim R. Dunbar, Simon J. Teat and Abraham Clearfield
Dalton Trans., 2012,41, 3995-4006

Non-traditional platinum compounds for improved accumulation, oral bioavailability, and tumor targeting
Katherine S. Lovejoy and Stephen J. Lippard
Dalton Trans., 2009, 10651-10659

l

Synthesis and reactivity of cationic niobium and tantalum methyl complexes supported by imido and β-diketiminato ligands
Neil C. Tomson, John Arnold and Robert G. Bergman
Dalton Trans., 2011,40, 7718-7729

Isocyanide insertion and cyclization reactions to form indolines using pincer-type complexes of scandium
Benjamin F. Wicker, Maren Pink and Daniel J. Mindiola
Dalton Trans., 2011,40, 9020-9025

O2 Reduction to H2O by the multicopper oxidasesInorganic chemistry USA Dalton free articles
Edward I. Solomon, Anthony J. Augustine and Jungjoo Yoon
Dalton Trans., 2008, 3921-3932

You can check out our homepage for the latest articles and if you follow us on twitter or sign up to our e-alert service you can keep up to date with the latest news in inorganic chemistry, hassle free.

Interested in finding out more about the RSC? Join the RSC University Roadshow 2012, which is currently touring the USA, giving you the opportunity to meet some of the RSC Editors, Associate Editors, Board members and get demonstrations on our interactive services such as ChemSpider!

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Inducing hysteretic spin crossover in solution

Devices that store information magnetically are widespread, from the old floppy disks to credit cards and hard disks. The evolution of computer technologies requires us to continually develop new materials to allow new devices to out-perform their predecessors, for some time molecular spin cross-over complexes have been excellent candidates for new magnetic storage media.

Could mononuclear complexes be the future of magnetic storgae media? Fe3+ organometallic magnetism magnetic storage media

Could mononuclear complexes in solution be the future of magnetic storage media?

This Hot Communication from Grace Morgan and colleagues details their developments in creating an Fe(III) complex which possesses magnetic hysteresis in solution. The authors note that spin cross over in some solid state materials is affected by polymorphism, counter ions and crystallisation solvents in the material. Find out more about the teams discoveries in solution by downloading their article while it is free

Inducing hysteretic spin crossover in solution
Paulo N. Martinho, Yannick Ortin, Brendan Gildea, Claudio Gandolfi, George McKerr, Barry O’Hagan, Martin Albrecht and Grace G. Morgan
DOI: 10.1039/C2DT12036D

Remeber you can keep up to date with all the latest news in inorganic chemistry by following us on twitter and signing up to our e-alert service.

l

The following articles might also be of interest;

A magnetic iron(III) switch with controlled and adjustable thermal response for solution processing
Claudio Gandolfi, Grace G. Morgan and Martin Albrecht
DOI: 10.1039/C2DT12037B

Synthesis and self-assembly of spin-labile and redox-active manganese(III) complexes
Claudio Gandolfi, Tatiana Cotting, Paulo N. Martinho, Olha Sereda, Antonia Neels, Grace G. Morgan and Martin Albrecht
DOI: 10.1039/C0DT01222J

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Exchanging ligands on semiconducting nanocrystals

Semiconductors are at the heart of nearly all things computerised, and with nearly all things computerised that makes semiconductors important. Semiconducting nanocrystals have become an interesting area of research because as colloidal inks they can potentially be used to easily print onto substrates to create photo-voltaic devices or a broad range of electronic devices.

CdSe nanocrystals undergoing ligand exchange and thermolysis

CdSe nanocrystals undergoing ligand exchange and thermolysis

This Hot Communication from the Brutchey group details the use of a ligand which exchanges with the capping ligand of semiconducting CdSe nanocrystals making them highly dispersible in a range of polar solvents (in DMF a stable colloid forms for > 2 weeks). Under mild conditions thermolysis transforms the surface bound ligands to thiocyanate in situ, producing nanocrystal films of CdSe(SCN). There are also indications of improved inter-particle coupling…

Nanocrystal ligand exchange with 1,2,3,4-thiatriazole-5-thiolate and its facile in situ conversion to thiocyanate
David H. Webber and Richard L. Brutchey

This Hot Article is part of our up-coming themed issue ‘New Talent Americas’, Guest Edited by Dan Mindiola and John Arnold, other articles due to be published in this special issue include:

Perceiving Molecular Themes in the Structures and Bonding of Intermetallic Phases: The Role of Hückel Theory in an Ab Initio Era
Timothy E. Stacey and Daniel Fredrickson

Splitting water with rust: hematite photoelectrochemistry
Thomas W. Hamann

A heterobimetallic metal–organic framework with tunable reactive metal sites: synthesis, characterization, and reactivity
Nathan C. Smythe, Derek P. Butler, Curtis E. Moore, William R. McGowan, Arnold L. Rheingold and Laurance G. Beauvais

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)

Ion Uptake and Solid Solution Formation

The study of ion-mineral interactions is a fascinating topic which spans many disciplines from inorganic chemistry to geology and ancient history. The driving forces behind the interaction of an ion and a mineral are complex, and whether or not an ion becomes incorporated into the solid phase is determined by many factors.

celestite strontianite Eu3+ Cm3+ Eu Cm solid solution solid-solution

 This Hot paper by Kiel Holliday et al. looks at the coordination of Eu and Cm to investigate what role local symmetry, ligand strength and a range of other parameters have in solid solution formation in both Eu- and Cm-doped strontianite and celestite.

So what is solid solution formation dependent on and what factors influence it?

Discriminating factors affecting incorporation: comparison of the fate of Eu3+–Cm3+ in the Sr carbonate–sulfate system
Kiel Holliday, Aurélie Chagneau, Moritz Schmidt, Francis Claret, Thorsten Schäfer and Thorsten Stumpf
Journal Article
Dalton Trans., 2012, 41, 3642-3647
DOI: 10.1039/C2DT12425D

You can also keep up to date with the latest information by following us on twitter or siging up to our e-alert service.

Digg This
Reddit This
Stumble Now!
Share on Facebook
Bookmark this on Delicious
Share on LinkedIn
Bookmark this on Technorati
Post on Twitter
Google Buzz (aka. Google Reader)