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

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

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

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Call for papers: Frustrated Lewis Pairs

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

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Ligand duality in Oxygen Atom Transfer

The dual nature of donor ligands is explored in Oxygen Atom Transfer (OAT) in this hot article by Adam Veige and co-workers.  In this study, donor ligands enhance the rate of OAT by hindering µ-O dimer formation; however, the addition of a too strongly coordinating ligand can actually prevent OAT by
making the transfer thermodynamically unfavorable.

Read more about this ligand duality for FREE until 13th December 2012:

The influence of reversible trianionic pincer OCO3– µ-oxo CrIV dimer formation ([CrIV]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, Advance Article
DOI: 10.1039/C1DT11104C

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Gaseous silanetriols: partners or loners?

Silanetriols are compounds of the general formula Si(OH)3R which readily form polysiloxanes by condensation, by substituting R for condensation resistant ligands a range of crystal structures have been identified for different solid state silanetriol compounds. Norbert W. Mitzel and colleagues have been investigating the intermolecular forces of gaseous silanetriols, the first investigation of its kind, with the aim of discovering if tert-butylsilanetriol [tBuSi(OH)3] dimerises via H-bonds or remains monomeric when in the gas state.

 

Intrigued? To find out more about the teams findings, including the taste of their silanetriol, read the full HOT article which is free to access until the 20th of December

Silanetriols in the gas phase: single molecules vs. hydrogen-bonded dimers

Stefan Spirk, Raphael J. F. Berger, Christian G. Reuter, Rudolf Pietschnig and Norbert W. Mitzel
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11740H, Communication

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HOT Article: Catalysing the Suzuki-Miyaura Coupling

The Suzuki–Miyaura cross-coupling of aryl halides with organoboronic acids is an important tool for synthetic organic chemistry. A range of palladium complexes with different ligands can been used to catalyse this interesting reaction and Ajai Kumar Singh and co-workers have synthesised four new ligands (selenated Schiff bases) to investigate the influence alkyl chain lengths have on the [Pd(L–H)Cl] complexes and their catalytic efficiency. Their remarkable results indicate there is a correlation between ligand alkyl chain length and catalytic efficiency, however, as their Dalton Transactions HOT Article details, the Pd(II) complexes are pre-catalysts which generate in situ real catalytic species of approx. 3 nm Pd(0) nanoparticles, protected by organoselenium species……….

 

 

To find out more about this fascinating discovery read the full article which is free to access until the 20th Decemeber.

Palladium(II)-selenated Schiff base complex catalyzed Suzuki–Miyaura coupling: Dependence of efficiency on alkyl chain length of ligand
Gyandshwar Kumar Rao, Arun Kumar, Bharat Kumar, Dinesh Kumar and Ajai Kumar Singh
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11695A

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Challenges in Inorganic and Materials Chemistry (ISACS8)

We are proud to announce that the International Symposia on Advancing the Chemical Sciences (ISACS) series will return in 2012 to include Challenges in Inorganic and Materials Chemistry (ISACS8) on 19 – 22 July in Toronto, Canada.

A range of topics will be covered including catalysis, organometallic chemistry, porous materials, main group chemistry, magnetism and materials for energy.

Full details surrounding the confirmed speakers and abstract submission process can be found on the dedicated webpage for this significant global conference.

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Poster prize winner Dr Subash Sahoo at the ACC3

We are very pleased to report that at the 3rd Asian Conference on Coordination Chemistry (ACC-3), Dr Subash Sahoo, from the group of Prof. Rahul Banerjee of the National Chemical Laboratory in Pune, was awarded the Dalton Transactions poster prize! His winning poster focussed on chiral coordination networks and proton conductivity along helical chains of hydrogen-bonded water molecules. More details of the conference can be found here.

Professor P. K. Bharadwaj (left) accepting the poster prize on behalf of Dr Subash Sahoo. The prize was awarded by Professor Mike Ward (right), Editor-in-Chief of RSC Advances

 

Dr Sahoo was awarded a Dalton Transactions certificate and a copy of the book Coordination polymers: design, analysis and application, which unfortunately he could not receive in person, but was accepted on his behalf by Prof. P. K. Bharadwaj.

The RSC Advances poster prize was awarded to Sandeep Kumar Dey for his poster on anion binding and host-guest chemistry with tripodal ligands, details for which can be found on the RSC Advances Blog.

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HOT Article: Different solvents mean different packing

Rational design of MOFs is a complex task with a range of variables including ligands, metals, reaction conditions and solvents, this HOT Communication in Dalton Trans. details the synthesis of a novel metal organic framework (MOF) using an aromatic linker and CdBr2. Leonard Barbour and Marike du Plessis synthesised the framework with different solvents and discovered different packing modes for the different solvent systems…… to find out more about their discoveries read the full Communication in Dalton Transactions

Supramolecular isomerism and solvatomorphism in a novel coordination compound
Marike du Plessis and Leonard J. Barbour
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11564B, Communication 

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Themed issue now online: Self-assembly in inorganic chemistry

Dalton Trans., 2011, 40(45): 11985-12396

Dalton Trans., 2011, 40(45): 11985-12396

Our themed issue on self-assembly in inorganic chemistry is now online.  Guest editors Paul Kruger and Thorfinnur Gunnlaugsson introduce the issue in their editorial.

Self-assembly in inorganic chemistry
Paul E. Kruger and Thorfinnur Gunnlaugsson
Dalton Trans., 2011, 40, 12003-12004
DOI: 10.1039/C1DT90162A

The front cover highlights work from Gale, Light, Ogden et al. examining the coordination of 2,5-dicarbothioamidopyrroles. De Cola et al. feature on the inside front cover with their description of a new class of water soluble metallosurfactant molecules based on luminescent neutral iridium(III) complexes.  Both cover articles will be free for 6 weeks so do take a look.

Further insight into the coordination of 2,5-dicarbothioamidopyrroles: the case of Cu and Co complexes
Louise E. Karagiannidis, Philip A. Gale, Mark E. Light, Massimiliano Massi and Mark I. Ogden
Dalton Trans., 2011, 40, 12097-12105
DOI: 10.1039/C1DT10441A

Aggregation induced colour change for phosphorescent iridium(III) complex-based anionic surfactants
Matteo Mauro, Gabriele De Paoli, Matthias Otter, Daniela Donghi, Giuseppe D’Alfonso and Luisa De Cola
Dalton Trans., 2011, 40, 12106-12116
DOI: 10.1039/C1DT11251A

The perspective by Jim Thomas gives an overview of research on sensor systems featuring discrete metal ion directed self-assembled architectures.

Metal ion directed self-assembly of sensors for ions, molecules and biomolecules
Jim A. Thomas
Dalton Trans., 2011, 40, 12005-12016
DOI: 10.1039/C1DT10876J

Also in the issue is the HOT communication from Stephen Faulkner and co-workers.  You can read Helen’s previous blog post on this article here.

Self-assembly between dicarboxylate ions and a binuclear europium complex: formation of stable adducts and heterometallic lanthanide complexes
James A. Tilney, Thomas Just Sørensen, Benjamin P. Burton-Pye and Stephen Faulkner
Dalton Trans., 2011, 40, 12063-12066
DOI: 10.1039/C1DT11103E

We’d like to thank the Guest Editors and all the authors for their contributions – it really is a fantastic issue and we hope you enjoy reading it.  Why not take a look at the articles today and blog your comments below.

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Hot Perspective: Shedding light on the oxygen-evolving-complex

Can we mimic the Photosystem II machinery for light-driven oxidation of water to molecular oxygen?

Can we mimic the Photosystem II machinery for light-driven oxidation of water to molecular oxygen?

In this Dalton Transactions Perspective, Philipp Kurz and colleagues discuss manganese-containing compounds that have been studied as potential analogues of the oxygen-evolving-complex in Photosystem II.  They highlight how the desire to produce solar fuels is inspiring research into artificial photosynthesis.

Read more for free until 29th November at:

Water oxidation catalysed by manganese compounds: from complexes to ‘biomimetic rocks’
Mathias Wiechen, Hans-Martin Berends and Philipp Kurz
Dalton Trans., 2012, Advance Article
DOI: 10.1039/C1DT11537E, Perspective

You might also find these Dalton Trans. articles on biomimetic water-oxidation catalysis interesting…

Nano-size amorphous calcium–manganese oxide as an efficient and biomimetic water oxidizing catalyst for artificial photosynthesis: back to manganese
Mohammad Mahdi Najafpour, Sara Nayeri and Babak Pashaei
Dalton Trans., 2011, 40, 9374-9378
DOI: 10.1039/C1DT11048A

High turnover catalysis of water oxidation by Mn(II) complexes of monoanionic pentadentate ligands
Rune Kirk Seidler-Egdal, Anne Nielsen, Andrew D. Bond, Morten J. Bjerrum and Christine J. McKenzie
Dalton Trans., 2011, 40, 3849-3858
DOI: 10.1039/C0DT01340D

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