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Metal-containing rotaxanes
02 September 2008
In their Dalton Transactions Perspective, Kohtaro Osakada and colleagues discuss recent developments in rotaxanes with metal-containing axles.
Issue 9 2008 Chemical Biology now published
18 August 2008
Drawing together coverage from all RSC publications, providing an overview of the latest developments in chemical biology
Dalton Discussion 11: The renaissance of main group chemistry
14 August 2008
Read the papers from the latest Dalton Discussion meeting here!
Contents list for Dalton Transactions, issue 36, 2008
Front cover
Dalton Trans., 2008, 4813
DOI: 10.1039/B814443P
Inside front cover
Dalton Trans., 2008, 4814
DOI: 10.1039/B814444N
Contents and Chemical Biology
Dalton Trans., 2008, 4815
DOI: 10.1039/B814445C
Perspective
Rotaxanes and pseudorotaxanes with Fe-, Pd- and Pt-containing axles. Molecular motion in the solid state and aggregation in solution
Yuji Suzaki, Toshiaki Taira, Kohtaro Osakada and Masaki Horie,
Dalton Trans., 2008, 4823
DOI: 10.1039/b804125c
A single-crystalline molecular rotary switch was achieved by using ferrocenylmethyl(4-methylphenyl)ammonium as the axle of pseudorotaxane.
Communications
Salicylaldoxime and salen containing imidazolium ionic liquids for biphasic catalysis and metal extractions
Prashant U. Naik, Gregory J. McManus, Michael J. Zaworotko and Robert D. Singer,
Dalton Trans., 2008, 4834
DOI: 10.1039/b811232k
Imidazolium salts containing salicylaldoxime or salen ligands readily form ionic metal complexes with copper and manganese; hence offering applications in metal extractions and biphasic catalysis.
An unusual barium olefin complex
Michal Wiecko, Christian Eidamshaus, Ralf Köppe and Peter W. Roesky,
Dalton Trans., 2008, 4837
DOI: 10.1039/b811436f
A barium metallocene with an intramolecular barium–olefin bond was formed by the reaction of [(
5-C5Me5)In] in the presence of [(5-C5Me5)2Ba].
Formation and X-ray structure of a seven-membered C4OBN heterocycle by a THF ring-expansion process
Andrea M. Corrente and Tristram Chivers,
Dalton Trans., 2008, 4840
DOI: 10.1039/b810319d
A seven-membered C4OBN heterocycle is obtained when a mixture of BCl3 and LiN(H)Dipp is stirred in THF, as a result of an unusual ring-expansion process.
Synthesis of the chiral tripyridyldiamine ligand Bn-CDPy3 and characterization of its Co(III) complex [Co(Bn-CDPy3)Cl]Cl2
Mirvat M. Hammoud, Joshua J. McKamie, Mary Jane Heeg and Jeremy J. Kodanko,
Dalton Trans., 2008, 4843
DOI: 10.1039/b810980j
The ligand Bn-CDPy3 represents a new class of chiral pentadentate ligands and the coordination geometry of the corresponding Co(III) complex indicates that all five N-donor atoms of Bn-CDPy3 bind to the Co(III) center in this chiral metal complex.
Papers
Synthesis, electrochemical, and molecular inclusion properties of 
canopied
trinuclear ruthenium complexes with six anchoring groups on an ITO electrode
Keiichi Terada, Katsuaki Kobayashi and Masa-aki Haga,
Dalton Trans., 2008, 4846
DOI: 10.1039/b807526c
New trinuclear Ru complexes with six phosphonate anchors were synthesised and immobilised on an ITO electrode. The canopied structure hold a small cavity that encapsulates TTF molecules, which can be proved by cyclic voltammetry.
Carborane inclusion chemistry for the uncommon calix[7,9]arenes
Thomas E. Clark, Mohamed Makha, Alexandre N. Sobolev and Colin L. Raston,
Dalton Trans., 2008, 4855
DOI: 10.1039/b807511e
p-But-calix[7,9]arenes form inclusion complexes with o-carborane investigated by solid state and solution studies, with both resulting complexes in the solid state being rich in carborane with the ratio of calixarene to carborane at 1
:7 and 2:7 respectively.
Spin-glass behaviour in the coordination polymer [Co(C3H3N2)2]n
Vinh Hung Tran and Beata 
wi
tek-Tran,
Dalton Trans., 2008, 4860
DOI: 10.1039/b806728g
A spin-glass state with the freezing temperature Tf = 4 K in [Co(C3H3N2)2]n is observed by magnetization and specific heat measurements. The observed behaviour is attributed to the competition between antiferromagnetic intra-chain and ferromagnetic inter-chain interactions. Doublet 
6 is suggested to be the ground state of the Co2+ ions.
Synthesis and reactivity of silylated tetrathiafulvalenes
Aurélien Hameau, Fabrice Guyon, Michael Knorr, Christian Däschlein, Carsten Strohmann and Narcis Avarvari,
Dalton Trans., 2008, 4866
DOI: 10.1039/b803947j
Novel organosilylated tetrathiafulvalenes (TTFs) possessing Si–H or Si–Si bonds have been synthesised and characterized in order to combine the literature-known reactivity of these bonds with TTF chemistry.
2
[Cu2(
5-btb)(-OH)(-H2O)]: a two-dimensional coordination polymer built from ferromagnetically coupled Cu2 units (btb = benzene-1,2,3-tricarboxylate)
Hesham A. Habib, Joaquin Sanchiz and Christoph Janiak,
Dalton Trans., 2008, 4877
DOI: 10.1039/b803813a
Magnetic susceptibility measurements for the copper network revealed a long -aqua bridge, an anti–syn carboxylate bridge, and a mixed -hydroxo + syn–syn carboxylate bridge as three magnetic exchange pathways.
An oximate-based hexanuclear mixed-valence MnIII4MnII2 edge-sharing bitetrahedral core with an St = 5 spin ground state
Sumit Khanra, Thomas Weyhermüller and Phalguni Chaudhuri,
Dalton Trans., 2008, 4885
DOI: 10.1039/b805122d
2,6-Diacetylpyridine dioxime has been employed to synthesize two carboxylate-free hexanuclear cores [MnIII4MnII2(4-O)2(2-OR)2]10+ (R = H or CH3) with spin ground states of St = 5.0.
Unprecedented long-range 1,7-bromination in gold complexes of N-(aryl)imino functionalized N-heterocyclic carbenes
Manoja K. Samantaray, Keliang Pang, Mobin M. Shaikh and Prasenjit Ghosh,
Dalton Trans., 2008, 4893
DOI: 10.1039/b807830k
Never-before-seen, long-range 1,7-bromination occurring at two different carbon (sp2 and sp3) centers spatially separated by ca. 6.4 Ĺ but existing in extended conjugation is observed in gold(III) complexes of N-(aryl)imino functionalized N-heterocyclic carbenes.
Potentiometric, spectroscopic, electrochemical and DFT characterization of oxovanadium(IV) complexes formed by citrate and tartrates in aqueous solution at high ligand to metal molar ratios: the effects of the trigonal bipyramidal distortion in bis-chelated species and biological implications
Elzbieta Lodyga-Chruscinska, Daniele Sanna, Eugenio Garribba and Giovanni Micera,
Dalton Trans., 2008, 4903
DOI: 10.1039/b803520b
The spectroscopic and electrochemical properties of VO(IV) mononuclear species formed by citrates and tartrates, and their biological implications are presented.
Rare tetranuclear mixed-valent [MnII2MnIV2] clusters as building blocks for extended networks
Georgios Karotsis, Leigh F. Jones, Giannis S. Papaefstathiou, Anna Collins, Simon Parsons, Tuyen D. Nguyen, Marco Evangelisti and Euan K. Brechin,
Dalton Trans., 2008, 4917
DOI: 10.1039/b804897e
Tetranuclear clusters constructed from the tripodal ligand heedH2 can be used as building blocks for the formation of novel extended networks with a rare form of the 2D herring bone topology.
Complexes of platinum(II) containing ferrocenylethynyl ligands: synthesis, characterization and spectroscopic and electrochemical properties
Álvaro Díez, Julio Fernández, Elena Lalinde, M. Teresa Moreno and Sergio Sánchez,
Dalton Trans., 2008, 4926
DOI: 10.1039/b806572a
A series of neutral and anionic multiredox active Pt(II) complexes has been synthesized and their electronic and electrochemical properties examined.
Pyrido-annellated diazaphospholenes and phospholenium ions
Zoltán Benk
, Sebastian Burck, Dietrich Gudat, Martin Nieger, László Nyulászi and Nicholas Shore,
Dalton Trans., 2008, 4937
DOI: 10.1039/b804621b
Structure correlation and computational studies indicate that pyrido-1,3,2-diazaphospholenium ions display aromatic character in the five-membered ring which is lost upon introduction of a substituent at phosphorus. Computational studies suggest that the reclamation of aromatic stabilisation energies facilitates reaction of P-amino-subsituted annulated diazaphospholenes under cleavage of the fused ring system.
A mechanistic investigation into the elimination of phosphonium salts from rhodium–TRIPHOS complexes under methanol carbonylation conditions
Gareth W. Lamb, Matthew L. Clarke, Alexandra M. Z. Slawin and Bruce Williams,
Dalton Trans., 2008, 4946
DOI: 10.1039/b803067g
A Rh–TRIPHOS complex reacts with methyl iodide to give the complex shown (right). In contrast to Rh complexes of diphosphines that are stable to methyl iodide beyond 140 °C, the TRIPHOS ligand is quaternised at moderate temperatures; labelling experiments show that this occurs by a dissociative mechanism.
Back cover
Dalton Trans., 2008, 4951
DOI: 10.1039/B814446J
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