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When 3nm is huge

10 May 2012

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

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Articles from around the world: USA

04 May 2012

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

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 oxidases Inorganic 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!

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Submissions open for upcoming themed issue in Mechanistic Organometallic Chemistry

03 May 2012

Submissions are now open for the latest planned Dalton Transactions themed issue in Mechanistic Organometallic Chemistry.

Mechanistic Organometallic chemistry Guest Editor: Professor Bob Crabtree, Yale University

Experimental and theoretical contributions will be considered but combined experimental–theoretical contributions are especially welcome.

For information on our article types, please see our author guidelines.

Please note that the normal refereeing procedure will apply and inclusion of articles in the themed issue is at the discretion of the guest editor.

Want to submit?
Do so before the 4th October 2012. Mark on your submission that it is intended for the themed issue. Submissions can be made here.

Please feel welcome to contact the Editorial Office with any queries.

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Cryo-TEM reaveals POM-nanoparticle interactions

27 Apr 2012

Ira Weinstock and colleagues from Ben Gurion University of the Negev have used cryogenic transmission electron microscopy to evaluate the interactions of polyoxometallates of different dimensions and shapes with gold nanoparticles. The study revealed a “face-down” orientation of the Pressyler ion [NaP₅W₃₀O₁₁₀]^14–, and a “tilted” orientation for the Finke-Droege ion [P₄W₃₀Zn₄(H₂O)₂O₁₁₂]^16–, contributing to important ongoing studies on the design of functional-POM protected metal nanoparticles.

"Face-down" orientation of Pressyler ion maximises interactions between cluster anion and Au surface.

To read more, download the communication now – it’s free to access.

Orientations of polyoxometalate anions on gold nanoparticles
Shelly Sharet, Ella Sandars, Yifeng Wang, Offer Zeiri, Alevtina Neyman, Louisa Meshi and Ira A. Weinstock
Dalton Trans., 2012
DOI: 10.1039/C2DT30592E

The findings in the above HOT communication are due to be included in an upcoming themed issue on Polyoxometalates, guest edited by Leroy Cronin and Deliang Long.

Yifeng Wang and Ira Weinstock’s previous Dalton Transactions perspective might also be of interest….

Cation mediated self-assembly of inorganic cluster anion building blocks
Yifeng Wang and Ira A Weinstock
Dalton Trans., 2010, 39, 6143-6152
DOI: 10.1039/C0DT00166J

Are you following us on Twitter? @DaltonTrans

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Delivering cancer-combatting compounds

27 Apr 2012

Scientists from Switzerland have developed a cage-encapsulated ruthenium complex for killing cancer cells.

The multifunctional drug has several features providing it with it’s fantastic anti-cancer properties… 1) it’s ruthenium based instead of platinum (less toxic and has been shown to overcome certain resistance mechanisms induced by Pt); 2) the pyrenyl ligands can easily intercalate with the DNA base pairs; and 3) the metalla-cage bestows water-solubility on the drug therefore enabling it to be internalised within the cancerous cells.

Not only that, the pyrene moiety is fluorescent so the uptake of the drug into the cell can be recorded in action.

Read the HOT article by Bruno Therrien and team now…
Cellular delivery of pyrenyl-arene ruthenium complexes by a water-soluble arene ruthenium metalla-cage
Mona Anca Furrer, Frédéric Schmitt, Michaël Wiederkehr, Lucienne Juillerat-Jeanneret and Bruno Therrien

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Inducing hysteretic spin crossover in solution

23 Apr 2012

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.

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

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A Novel Decanuclear Cobalt(II) Cluster

20 Apr 2012

Polynuclear complexes contain several metal atoms or ions in a single coordination species and therefore their electronic structures and magnetic properties can be quite complex. These properties give polynuclear complexes potential for applications in information storage devices and molecular magnets.

Ruren Xu, Jihong Yu and their team at Jilin University, China have reported the synthesis of a novel cobalt(II) polynuclear complex. This new complex is a decanuclear cobalt (II) cluster with bridging Co₃^2-anions and 8-hydroxyquinoline ligands. Interestingly, the ten cobalts are arranged in an adamantane topology which is a chair-like conformation, The adamantane topology of the cobalt culster can be seen clearly in green in the left hand figure. To the researchers’ knowledge, this is the first example of a metallic skeleton with an adamantane topology in a polynuclear complex. It was also found that an antiferromagentic interaction exists within the complex.

This novel complex is unlike any other cobalt polynuclear complex that has been reported before.

To find out more about the fascinating stucture of this decanuclear cobalt (II) cluster, read the full Dalton Transactions article:

A novel decanuclear Co(II) cluster with adamantane-like metallic skeleton supported by 8-hydroxyquinoline and in situ formed CO₃²⁻ anions
Lei Wang, Yi Li, Yu Peng, Zhiqiang Liang, Jihong Yu and Ruren Xu

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Boranes and Borohydrides themed issue – submissions open

10 Apr 2012

Submissions are now open for the Dalton Transactions themed issue on Boranes and Borohydrides, guest edited by Professor Simon Aldridge (University of Oxford).

Borane and borohydride containing molecules/materials constitute an exciting and rapidly developing field which spans a wide breadth of chemistry, and has seen a number of major fundamental developments in recent years. Applications in fields as diverse as catalysis, organic synthesis, polymer chemistry and functional materials science, sensors, and energy highlight the impact of research currently being carried out.

This Dalton Transactions themed issue will seek to highlight to the inorganic research community the latest and very best research in the field.

We will consider all types of article: Communications, Full Papers, Frontiers and Perspectives (please contact the Editorial Office if you would like to contribute a Frontier or Perspective article). For further information on article types, see our author guidelines. Please note that the normal refereeing procedure will apply and inclusion in the issue is subject to the discretion of the guest editor.

Submission deadline: 20th July 2012

Submit now! We look forward to receiving it shortly…

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Computational investigation suggests symbiotic interaction between borane-phosphine frustrated Lewis pairs and nitrous oxide

05 Apr 2012

Computational studies of complexation of nitrous oxide by borane–phosphine frustrated Lewis pairs Thomas Gilbert from Northern Illinois University reports on a computational study looking at Ar₃B–ONN–PR₃ complexes that result from reactions between borane-phosphine frustrated Lewis pairs and N₂O. By exploring the structure, stability, mechanism of formation and functionalisation of Ar₃B–ONN–PR₃ complexes, we can further understand how frustrated Lewis pairs can capture small molecules, like N₂O, and hold them for derivatisation, in a similar way to enzymes.

A key finding from this study is a symbiotic relationship that forms between Lewis acid and Lewis base to overcome endothermic or weakly exothermic energetics, forming one structural isomer in preference to others. Gilbert makes several other exciting conclusions so download the manuscript whilst it’s free to find out more….

Computational studies of complexation of nitrous oxide by borane–phosphine frustrated Lewis pairs
Thomas M. Gilbert
Dalton Trans., 2012
DOI: 10.1039/C2DT30208J

Frustrated Lewis pairs are compounds or mixtures combining sterically hindered Lewis donors and acceptors. Such systems are capable of unique reactivity with fascinating applications in stoichiometry and catalysis. Dalton Transactions will be publishing a themed issue on frustrated Lewis pairs later in the year – below are some other articles due to be included in the issue:

Exchange chemistry of tBu₃P(CO₂)B(C₆F₅)₂Cl
Rebecca C. Neu, Gabriel Ménard and Douglas W. Stephan
Dalton Trans., 2012
DOI: 10.1039/C2DT30206C

Dimeric aluminum–phosphorus compounds as masked frustrated Lewis pairs for small molecule activation
Steffi Roters, Christian Appelt, Hauke Westenberg, Alexander Hepp, J. Chris Slootweg, Koop Lammertsma and Werner Uhl
Dalton Trans., 2012
DOI: 10.1039/C2DT30080J

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Dalton Transactions Blog

Posts Tagged ‘Dalton’

When 3nm is huge

Articles from around the world: USA

Submissions open for upcoming themed issue in Mechanistic Organometallic Chemistry

Cryo-TEM reaveals POM-nanoparticle interactions

Delivering cancer-combatting compounds

Top ten most accessed articles in March

Inducing hysteretic spin crossover in solution

A Novel Decanuclear Cobalt(II) Cluster

Boranes and Borohydrides themed issue – submissions open

Computational investigation suggests symbiotic interaction between borane-phosphine frustrated Lewis pairs and nitrous oxide

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