Dalton Transactions Blog

Hot Communication: New crystalline porous material construction strategy

07 Dec 2011

Hydrogen-bond bridges between Li4O4 clusters can give tetrahedral, square planar and linear supramolecular networks.

Hydrogen-bond bridges between lithium cubane clusters can give tetrahedral, square planar and linear supramolecular networks.

Pingyun Feng and colleagues report the integration of lithium cubane clusters into 3D supramolecular networks in this communication. Formation of the lithium cubane clusters, which then act as building blocks that are pre-programmed to assemble assorted hydrogen-bonded geometries, can be done in situ, under mild reaction conditions and using readily available chemicals. Key to the success of the strategy is the use of ditopic ligands with both phenol and pyridine functionality. Phenol facilitates the assembly of the cubane cluster and pyridine acts as an H-bond acceptor. In addition, an H-bond donor comes from methanol occupying the fourth coordination site of the lithium atom. Future studies building on this work will look at extending the ligand design to create new supramolecular networks with greater porosity and improved gas sorption properties.

To find out more, download this Dalton Trans. communication today…

Lithium cubane clusters as tetrahedral, square planar, and linear nodes for supramolecular assemblies
Xiang Zhao, Tao Wu, Xianhui Bu and Pingyun Feng
Dalton Trans., 2012
DOI: 10.1039/C1DT11975C

Do also take a look at previous work from the same team:

Hydrogen-bonded boron imidazolate frameworks
Jian Zhang, Tao Wu, Pingyun Feng and Xianhui Bu
Dalton Trans., 2010, 39, 1702-1704
DOI: 10.1039/B924633A

Comments Off on Hot Communication: New crystalline porous material construction strategy

HOT Article: Unusual oxidation for in situ ligands!

07 Dec 2011

By Matthew Cude, Development Editor.

In their Dalton Transactions paper Hui Gao and Xian-Ming Zhang detail the synthesis of three new bismuth complexes, the preparation is under ambient conditions, using an environmentally friendly bismuth reagent and involves the in situ oxidation of dimethyl 1,4-cyclohexanedione-2,5-dicarboxylate. The authors propose an interesting reaction mechanism during complex formation, involving hydroxylation, condensation and oxidative cleavage, with two of the reactions producing in situ oxalate. Orange or red crystals were obtained from the experiments and the three complexes revealed to form diamond, brick-wall and herringbone nets. To read more about these interesting compounds, as well as the authors future plans in the preparation of molecular magnets, read the full article which is available free for 4 weeks.

Three novel Bi(III) complexes with in situ generated anilate ligands: unusual oxidation of cyclohexanedione to dihydroxy benzoquinone
Hui Gao and Xian-Ming Zhang
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11258A

Comments Off on HOT Article: Unusual oxidation for in situ ligands!

First came Pacman, then Ms. Pacman and now Diamido Pacman!?

02 Dec 2011

By Matthew Cude, Development Editor.

Multi-dentate amido ligands are a real area of interest in coordination chemistry, the transition metal complexes possess novel reactivities, interesting structures and a range of properties including magnetism. Diamido-donor ligands for a large number of diamagnetic metal centres have been well studied, but the paramagnetic complexes have been relatively unexplored. Daniel B. Leznoff and Cassandra E. Hayes have compiled a review of these interesting structures in their Dalton Transactions Perspective ‘Paramagnetic metal complexes of diamido donor ligands‘, highlighting the broad scope of research yet to be undertaken. Who knows where the next fruit will appear in this unexplored maze?

Paramagnetic metal complexes of diamido donor ligands
Cassandra E. Hayes and Daniel B. Leznoff
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11559F

Comments Off on First came Pacman, then Ms. Pacman and now Diamido Pacman!?

3rd Dalton Transactions International Symposium – Bioinorganic Chemistry

01 Dec 2011

By Jamie Humphrey, Editor.

This year’s symposium held in Japan was a resounding success, and highlighted some very innovative research.

The 3^rd Dalton Transactions International Symposium was held at Osaka University and International Institute for Carbon-Neutral Energy Research (I²CNER) at Kyushu University, Japan from the 14^th-16^th November. The aim of the event was to bring together scientists from around the world to discuss the exciting and ever expanding subject of bioinorganic chemistry and the symposium certainly delivered!

The conference began at Osaka University with a lecture titled ‘Reactivity of Mononuclear Copper Active-Oxygen Complexes’, by Shinobu Itoh (Osaka University) who examined the catalytic mechanism of the copper monooxygenases. This was followed by an overview of ligand design and metal complexes for use as diagnostic tools and therapeutic agents by Chris Orvig (University of British Columbia, Canada). Shun Hirota (Nara Institute of Science and Technology, Japan) gave an insightful look into ‘Structural Changes of Metalloproteins and Metal-Peptide Complexes’ before we briefly broke for lunch. Rejuvenated, Erwin Reisner (University of Cambridge, UK) spoke on solar fuel-producing hybrid systems and the prospects for replacing enzymes with synthetic catalysts, he was followed by Takashi Hayashi (Osaka University) speaking on the ‘Construction of Supramolecular Hemoprotein Self-Assembly Systems’. Nils Metzler-Nolte (Ruhr University, Germany) began the final session of the day with a talk on ’Bioorganometallic Chemistry: Synthetic Strategies and Biomedical Applications for Metal-Peptide Bioconjugates’ with some interesting results on cell delivery and organelle localisation. The day in Osaka was then concluded by Kazuya Kikuchi (Osaka University) discussing his work into designing fluorogenetic labelling systems.

Professors Seiji Ogo, Yoshio Hisaeda, Tsutomu Katsuki and Dr Jamie Humphrey

Professor Seiji Ogo, Professor Yoshio Hisaeda, Dr Jamie Humphrey and Professor Tsutomu Katsuki enjoying dinner in Fukuoka

The Symposium then moved onto Fukuoka on Kyushu island, to 1²CNER at Kyushu University, where the day was opened with a welcome by the Director of 1²CNER, Professor Petros Sofronis. The scientific sessions began with Seiji Ogo (I²CNER, Kyushu University), who discussed his research into an [NiFe]hydrogenase mimic as a potential catalyst for electron extraction from hydrogen. Research into a range of novel nanomaterials containing Vitamin B₁₂ activity was then discussed by Yoshio Hisaeda (Kyushu University). The bioinspired system his team have developed works under irradiation with visible light and can be applied to the degradation of organic halide pollutants. Chris Orvig, Erwin Reisner and Nils Metzler-Nolte were able to maximise their contribution to the symposium by joining us again at Kyushu University and sharing their expertise in their fields. The event was then rounded off by two excellent discussions; Yoshinori Naruta’s (Kyushu University) lecture on ‘Oxygen Activation with Bio-Inspired Molecular Catalysts’ and ‘Oxygen Atom Transfer and Dehydrogenation Reactions using Molecular Oxygen as Oxidant’ presented by Tsutomu Katsuki (Kyushu University).

The symposium was a great event for which we owe much thanks and gratitude to the local hosts, in particular Dalton Transactions Regional Associate Editor Shinobu Itoh, in Osaka and Advisory Board member Profesor Seiji Ogo in Fukuoka and all the speakers. For more information about the symposium, including a full programme about the 2 day event see the website.

On the topicof one of the topics covered by the Symposium, next year Dalton Transactions will be publishing a themed issue ‘Application of inorganic chemistry for non-cancer therapeutics’, with guest editor Professor Kathy Franz (Duke University, NC, USA).

Some recent Dalton Perspectives which may also be of interest include

Approaches to efficient molecular catalyst systems for photochemical H2 production using [FeFe]-hydrogenase active site mimics, Mei Wang, Lin Chen, Xueqiang Li and Licheng Sun, Dalton Trans., 2011, Advance Article, DOI: 10.1039/C1DT11166C

Synthesis and bio-functionalization of magnetic nanoparticles for medical diagnosis and treatment Thomas D. Schladt, Kerstin Schneider, Hansjörg Schild and Wolfgang Tremel,Dalton Trans., 2011, 40, 6315-6343, DOI: 10.1039/C0DT00689K

Comments Off on 3rd Dalton Transactions International Symposium – Bioinorganic Chemistry

Dalton Transactions: issue 47

01 Dec 2011

By Helen Lunn, Publishing Editor.

Discover the beautiful outside cover of Dalton Transactions issue 47. The authors would like to gratefully acknowledge Mrs. Kshitija Kolvankar for the design of the cover page highlighting the work of Serrano and co-workers in developing a simple and novel synthetic route towards solvate analogous of classical solvate precursors. It involves stirring Pd₃(AcO)₆ in the solvent of choice, in the stoichiometric presence of protic ligands. The examples presented with imidate ligands allowed the preparation of acetonitrile, dimethylsulfoxide and dimetylsulfide bis-imidate complexes. The possibility of extending the route presented to other combinations of solvents/protic electrophiles makes it a potentially useful synthetic tool, and also promising applications in catalysis could be expected for the new precursor and its derivatives.

‘Dalton Transactions after 40 volumes’ – Peter Scott

30 Nov 2011

By Matthew Cude, Development Editor.

An editorial by Professor Peter Scott

It has been a year of celebration for Dalton Transactions. As many of you will have heard it is 40 years since the journal began publishing works of great inorganic chemistry and as part of these celebrations Peter Scott has written a historical account of his personal experience with the journal. Peter still remembers his first Dalton Transactions paper as an undergraduate and has since seen the abundant changes that have led to the modern day interactive journal that needless to say is still publishing great inorganic chemistry. Peter’s historic perspective is an insightful read.

Dalton Transactions after 40 volumes
Peter Scott
Dalton Trans., 2011, Advance Article
DOI: 10.1039/C1DT90157E

Comments Off on ‘Dalton Transactions after 40 volumes’ – Peter Scott

Hot Article: Stable ionic liquid-nanofluids

29 Nov 2011

By Jennifer Newton, Publishing Editor.

IL-nanofluids were produced in a simple, inexpensive and reproducible manner.

Małgorzata Swadźba-Kwaśny, Peter Nockemann and colleagues from The Queen’s University Belfast describe the one-pot synthesis of ionic liquid-nanofluids in this HOT paper. The ionic-liquid nanofluids consist of copper(II) oxide nanoparticles and copper(I,II), oxide clusters in acetate-based ionic liquids. Combining ionic liquids and nanoparticles can create ionic liquids with additional or significantly improved properties that could then be used as catalysts or as heat transfer fluids.

It’s currently free so do take a look!

Facile in situ synthesis of nanofluids based on ionic liquids and copper oxide clusters and nanoparticles
Małgorzata Swadźba-Kwaśny, Léa Chancelier, Shieling Ng, Haresh G. Manyar, Christopher Hardacre and Peter Nockemann
Dalton Trans., 2012
DOI: 10.1039/C1DT11578B

Comments Off on Hot Article: Stable ionic liquid-nanofluids

Hot Communication: Exploring the metal-mediated reactivity of 2-pyridinealdehyde oxime

28 Nov 2011

By Jennifer Newton, Publishing Editor.

The reactivity of ligands upon coordination to a metal ion is currently a very exciting area.

Read about the rare and novel transformations of the oxime ligand, 2-pyridinealdehyde oxime, when it is reacted with Zn(II) sources, in this HOT communication from Annie Powell, Spyros Perplepes et al.

It’s currently free to access so do take a look!

Metal ion-assisted transformations of 2-pyridinealdoxime and hexafluorophosphate
Konstantis F. Konidaris, Christina D. Polyzou, George E. Kostakis, Anastasios J. Tasiopoulos, Olivier Roubeau, Simon J. Teat, Evy Manessi-Zoupa, Annie K. Powell and Spyros P. Perlepes
Dalton Trans., 2012
DOI: 10.1039/C1DT11881A

You might also find the following perspective interesting:

Diol-type ligands as central ‘players’ in the chemistry of high-spin molecules and single-molecule magnets
Anastasios J. Tasiopoulos and Spyros P. Perlepes
Dalton Trans., 2008, 5537-5555
DOI: 10.1039/B805014G

Comments Off on Hot Communication: Exploring the metal-mediated reactivity of 2-pyridinealdehyde oxime

Call for papers: Frustrated Lewis Pairs

28 Nov 2011

By Ruth Doherty, Deputy Editor.

We are pleased to announce an upcoming themed issue on Frustrated Lewis Pairs, guest edited by Doug Stephan. It is our pleasure to invite you to contribute to this themed issue.

The concept of Frustrated Lewis Pairs (FLPs) was formulated in 2006/2007. Since then, an explosive array of creative applications in stoichiometric and catalytic reactivity have been developed based on this simple concept. Activation of a variety of small molecules has garnered much interest and utility in fields including metal-free hydrogenations, green-house gas chemistry, hydrogen storage and organic synthesis have also emerged. A number of these systems have prompted insightful computational studies targeting a deeper understanding of this novel reactivity. Moreover the notion of FLPs has broadened well beyond the initial phosphine/borane systems, with extensions to a variety of main group and transition metal systems as well as organic reagents. This themed issue aims to grasp the current momentum in FLP chemistry and hopes to bring together contributions from experts across the field.

How to submit? All types of manuscript, Communications, Full Papers and Perspectives, will be considered for publication. We aim to publish this themed issue in summer 2012 and therefore would like to receive manuscripts by 16th February 2012. The manuscript should be prepared according to the format for regular articles and should be submitted via our online system. All invited manuscripts will be subjected to the normal refereeing procedure.

Deadline for Submission: 16th February 2012.

Please indicate on submission that your manuscript is intended for this themed issue and direct any questions to the Dalton Transactions Editorial Office.

You might also be interested to read some recent research on FLPs:

Perspective: Organometallic frustrated Lewis pair chemistry
Gerhard Erker
Dalton Trans., 2011, 40, 7475-7483 DOI: 10.1039/C1DT10152H

Hot Article: Chloro- and phenoxy-phosphines in frustrated Lewis pair additions to alkynes
Christopher B. Caputo, Stephen J. Geier, Eva Y. Ouyang, Christoph Kreitner and Douglas W. Stephan
Dalton Trans., 2011, DOI: 10.1039/C1DT11196E

Reactivity of Lewis pairs (R2PCH2AlMe2)2 with carbon dioxide
Josée Boudreau, Marc-André Courtemanche and Frédéric-Georges Fontaine
Chem. Commun., 2011, 47, 11131-11133 DOI: 10.1039/C1CC14641F

Perspective: Frustrated Lewis pairs: a new strategy to small molecule activation and hydrogenation catalysis
Douglas W. Stephan
Dalton Trans., 2009, 3129-3136 DOI: 10.1039/B819621D

Comments Off on Call for papers: Frustrated Lewis Pairs

Dalton Transactions Blog

Hot Communication: New crystalline porous material construction strategy

HOT Article: Unusual oxidation for in situ ligands!

First came Pacman, then Ms. Pacman and now Diamido Pacman!?

3rd Dalton Transactions International Symposium – Bioinorganic Chemistry

Dalton Transactions: issue 47

‘Dalton Transactions after 40 volumes’ – Peter Scott

Top ten most accessed articles in October

Hot Article: Stable ionic liquid-nanofluids

Hot Communication: Exploring the metal-mediated reactivity of 2-pyridinealdehyde oxime

Call for papers: Frustrated Lewis Pairs

Links

Categories

Archives

Meta