Archive for 2011

Hot Article: Precursors for supraicosahedral species

In this new Dalton Transactions Hot Article, Macgregor, Welch, Zanello et al. report the synthesis of carboranes substituted with a range of ArF substituents.  The team also describe the results of spectroscopic, computational and (spectro)electrochemical studies for identifying the best ArF substituent to stabilise the new carboranes once reduced.

Supraicosahedral heteroborane chemistry is an area of contemporary interest. Heteroborane clusters with >12 vertices can be challenging to synthesise and can present interesting problems for computational chemists.

Supraicosahedral heteroborane chemistry is important as  such compounds could find valuable applications in a wide range of fields  from bond activation and homogeneous catalysis to medicine.

Read for free until the 1st April 2011 here.

Spectroscopic, structural, computational and (spectro)electrochemical studies of icosahedral carboranes bearing fluorinated aryl groups
Hugo Tricas, Marta Colon, David Ellis, Stuart A. Macgregor, David McKay, Georgina M. Rosair, Alan J. Welch, Ivan V. Glukhov, Fulvio Rossi, Franco Laschi and Piero Zanello
Dalton Trans., 2011, Advance Article, DOI: 10.1039/C0DT01798A

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Hot Article: Locating H-atoms in MOFs

In this new Dalton Transactions Hot Article, Cheetham et al. use neutron powder diffraction to examine the crystal and magnetic structure of some transition metal gallates.  The team accurately determined the locations of the hydrogen atoms to gain an insight into  how the different valences are accommodated as well as getting details about their magnetic structures.

MOFs have been the focus of extensive research due to their wide variety of intriguing structures and properties.  Most of the effort has focused on their gas adsorption and catalytic capabilities.  Dense frameworks, with extended inorganic connectivity (e.g. metal–oxygen–metal), have also recieved attention recently. These materials can exhibit properties (electrical conductivity and ferromagnetism)that are associated with purely inorganic compounds, such as metal oxides.

Read more about this work for free until 29th March 2011 here.

Detailed investigations of phase transitions and magnetic structure in Fe(III), Mn(II), Co(II) and Ni(II) 3,4,5-trihydroxybenzoate (gallate) dihydrates by neutron and X-ray diffraction
Paul J. Saines, Hamish H.-M. Yeung, James R. Hester, Alistair R. Lennie and Anthony K. Cheetham
Dalton Trans., 2011, Advance Article, DOI: 10.1039/C0DT01687J

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Dalton Transactions poster prize winner at 15th Inorganic Chemistry Conference, Johannesburg

James Odendal from the Department of Chemistry and Polymer Science at the University of Stellenbosch, SA was awarded a Dalton Transactions poster prize at the recent 15th Inorganic Chemistry Conference in Johannesburg.

The title of his paper was “Investigating Intra- and Intermolecular Bond Displacement in Dication Hexahaloplatinate (IV) Salts as a Function of Temperature using Single-Crystal X-ray Diffraction and 195Pt Solid-state NMR”, which James wrote with his co-authors LJ Barbour and KR Koch.

The conference was part of the 40th South African Chemical Institute convention, the first event planned by IUPAC and UNESCO celebrating the International Year of Chemistry. A summary of this highly successful occasion can be found in the SACI newsletter.

James has recently been published as the first author in Delia A. Haynes paper in the New Talent issue of CrystEngComm, read the full article:

Packing motifs in organic ammonium carboxylate salts: extension of the ring-stacking and ring-laddering concepts
James A. Odendal, Jocelyn C. Bruce, Klaus R. Koch and Delia A. Haynes
CrystEngComm, 2010, 12, 2398-2408
DOI: 10.1039/C000922A, Paper

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International Women’s Day at Dalton Transactions

As the 8th March is International Women’s Day Dalton Transactions is highlighting the first published advanced article of the day by a female corresponding author.

Congratulations to Susannah L. Scott, who investigates how pincer-ligated iridium complexes with a phosphinite substituent can be immobilised onto a support to form an effective catalyst for the dehydrogenation of alkanes.

Read the full article to find out more…

Reactions of phosphinites with oxide surfaces: a new method for anchoring organic and organometallic complexes
Brian C. Vicente, Zheng Huang, Maurice Brookhart, Alan S. Goldman and Susannah L. Scott
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C0DT01369B, Paper

For more information on Professor Scott’s work visit her webpage.

Other recent articles by Susannah Scott can be found below:

Catalytic disassembly of an organosolv ligninviahydrogen transfer from supercritical methanol
Katalin Barta, Theodore D. Matson, Makayla L. Fettig, Susannah L. Scott, Alexei V. Iretskii and Peter C. Ford
Green Chem., 2010, 12, 1640-1647

Wavelet transform EXAFS analysis of mono- and dimolybdate model compounds and a Mo/HZSM-5 dehydroaromatization catalyst
Robert O. Savinelli and Susannah L. Scott
Phys. Chem. Chem. Phys., 2010, 12, 5660-5667

Electronic structure of alumina-supported monometallic Pt and bimetallic PtSn catalysts under hydrogen and carbon monoxide environment
Jagdeep Singh, Ryan C. Nelson, Brian C. Vicente, Susannah L. Scott and Jeroen A. van Bokhoven
Phys. Chem. Chem. Phys., 2010, 12, 5668-5677

Highly dispersed clay–polyolefin nanocomposites free of compatibilizers, via the in situ polymerization of α-olefins by clay-supported catalysts
Susannah L. Scott, Brian C. Peoples, Cathleen Yung, René S. Rojas, Vikram Khanna, Hironari Sano, Toru Suzuki and Fumihiko Shimizu
Chem. Commun., 2008, 4186-4188

Catalytic ring expansion, contraction, and metathesis-polymerization of cycloalkanes
Ritu Ahuja, Sabuj Kundu, Alan S. Goldman, Maurice Brookhart, Brian C. Vicente and Susannah L. Scott
Chem. Commun., 2008, 253-255

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Swedish inorganic chemists to assemble in Stenungsund

To celebrate the recent  formation of the Inorganic Section of the Swedish Chemical Society, a conference, open to everyone,  will take place in June this year.

The conference will run from 13th to 15th June, in the coastal town of Stenungsund in Sweden, which has a history dating back to the first century, and a more recent history as an important centre for the petrochemical industry.

The confirmed speakersfor the meeting are:

Roland A. Fischer, Ruhr University,  Bochum, Germany

Kersti Hermansson, Uppsala University, Sweden

Staffan Sjöberg, Umeå University, Sweden

Belén Martín-Matute, Stockholms University, Sweden

Licheng Sun, Royal Institute of Technology, Sweden

Sven Lidin, Lund University, Sweden

Matti Haukka, University of  Eastern Finland, Joensuu, Finland

Christina Lundmark, Geological Survey of Sweden (SGU), Sweden

Robert Onsander, IVA and the chemical companies of Stenungsund (vision 2030), Sweden

Lennart Sjölin, University of Gothenburg, Sweden

Göran Svensson, chairman of Swedish Society of Chemical Engineers, Sweden

Since 2000, RSCPublishing has been pleased to incorporate the journal  Acta Chemica Scandinavica in Dalton Transactions.

Further details about this conference are available from the organiser, Professor Lars Ohrstrom

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HOT Article: Coordination chemistry of organoselenium

In this paper, indium(III), antimony(III) and bismuth(III) dihalide complexes with deprotonated, tridentate thio- and selenosemicarbazone ligands have been fully investigated.

An understanding of the chemistry of the thiosemicarbazonato ligand, which is known for its anti tumour and pharmacological properties, is of high importance, and is of special interest to scientists in the field of organoselenium research.

Read the full manuscript to find out more about Mohr and colleagues latest research on the coordination chemistry of organoselenium compounds. As this work has been selected as a Dalton Transactions Hot article, it will be FREE to access until 5th April.

Indium(III), antimony(III) and bismuth(III) dihalide complexes with tridentate, anionic thio- and selenosemicarbazonato ligands
Anja Molter and Fabian Mohr
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C0DT01693D, Paper

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Hot Article: Molecular sensors for picric acid

A new class of heterometallic squares possessing a metal-based donor via the self-assembly approach have been synthesised and found to be useful for molecular sensing of aromatics particularly picric acid.  Further studies are underway of the host–guest chemistry involved together with detailed photophysical studies.

Read the full story at:
Self-assembled molecular squares containing metal-based donor: synthesis and application in the sensing of nitro-aromatics
Vaishali Vajpayee, Hyunuk Kim, Anurag Mishra, Partha Sarathi Mukherjee, Peter J. Stang, Min Hyung Lee, Hwan Kyu Kim and Ki-Whan Chi
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C0DT01481H, Communication

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Perspective: Radiotracers for diagnosis of diseases

This Perspective article by Shuang Liu, an expert in radiopharmaceuticals, looks at different synthesis methods and applications of  99mTc radiotracers.

Liu, based at the School of Health Sciences, Purdue University, USA, brings together both the latest research and the fundamental chemistry of Technetium-99 m. This offers an invaluable insight into nuclear medicine and using techniques such as single photon emission computed tomography (SPECT) and positron emission tomography (PET).

Download the full review today.

99m Tc-centered one-pot synthesis for preparation of 99mTc radiotracers
Shuang Liu and Sudipta Chakraborty
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C0DT01462A, Perspective

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2011 Call for Nominations! Dalton European/African Lectureship

I am delighted to announce that nominations are now invited for the 2011 Dalton Transactions European/African Lectureship Award. This annual award was established to recognise the achievements of a young African or European inorganic chemist.

Key features of the award
The recipient of the award will be asked to present a lecture and the Dalton Transactions Editorial Office will provide the sum of £1500 to the recipient for travel and accommodation costs. The recipient will also be asked to contribute a Perspective article to the journal and will have their work showcased on the back cover of the issue in which their article is published. There will be just one recipient of the award each year.    

Qualification
The recipient of the award should be in the earlier stages of their scientific career, i.e. in the first 12 years of receiving their doctorate or equivalent degree.    

Selection
The recipient of the lectureship will be selected by the Dalton Transactions Editorial Board.

Nomination
Nominations should consist of a nomination letter, a letter seconding the nomination, a cv (maximum 5 pages) and a statement from the candidate (not more than one page) describing their most significant research contributions. Those wishing to make a nomination should send details by email to the Dalton Transactions Editorial Office by 22nd April 2011

Previous winners of the Dalton Transactions European/African Lectureship Award include:
2010 Lectureship Karsten Meyer
2009 Lectureship Simon Aldridge
2008 Lectureship Kay Severin
2007 Lectureship Andrew Weller 

Help us find this year’s winner by nominating now! Any questions about the 2011 Dalton Transactions European/African Lectureship Award can be directed to the Dalton Transactions Editorial Office.

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Meet The Team: Conferences in 2011

The Dalton Transactions team are planning to attend a number of conferences this year:
06/03/2011, GRC: Inorganic Reaction Mechanisms, Galveston, TX, USA, Meet Ruth
27/03/2011, ACS National Meeting and Exposition, Anaheim, California, USA, Meet Jamie
11/04/2011, First EuCheMS Inorganic Chemistry Conference, Manchester, UK, Meet Jamie
03/07/2011, EuCOMC XIX, Toulouse, France,
Meet Ruth
07/07/2011, Coordination Chemistry Discussion Group, Norwich, UK, Meet Ruth
10/07/2011, GRC: Organometallic, Newport, RI, USA, Meet Ruth
07/08/2011, International Conference on Biological Inorganic Chemistry, Vancouver, Canada, Meet Jamie
04/09/2011, EuCheMS Conference on Nitrogen Ligands , Granada, Spain, Meet Jamie

Jamie and Ruth would love to meet you, if you’re attending any of these conferences, please let us know!

Ruth Doherty, Dalton Transactions Deputy Editor

Jamie Humphrey, Dalton Transactions Editor

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