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pi-Conjugated phosphole derivatives
03 December 2008
Jeanne Crassous and Régis Réau give an overview of the synthesis, properties and applications of pi-systems incorporating a phosphole moiety.
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27 November 2008
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21 November 2008
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Contents list for Dalton Transactions, issue 48, 2008
Front cover
Dalton Trans., 2008, 6853
DOI: 10.1039/b820641b
Contents and Chemical Biology
Dalton Trans., 2008, 6855
DOI: 10.1039/b820642m
Perspective
-Conjugated phosphole derivatives: synthesis, optoelectronic functions and coordination chemistry
Jeanne Crassous and Régis Réau,
Dalton Trans., 2008, 6865
DOI: 10.1039/b810976a
We have developed the chemistry of phosphole to tailor -conjugated materials for optoelectronic devices and gave rise to nanosize supramolecular rectangles and sophisticated chiral complexes.
Communications
A sheet of clusters: self-assembly of a (4,4) network of FeIII10 clusters
David R. Turner, Sze Nee Pek, John D. Cashion, Boujemaa Moubaraki, Keith S. Murray and Stuart R. Batten,
Dalton Trans., 2008, 6877
DOI: 10.1039/b815084b
A 2D sheet of FeIII10 clusters has been synthesised in which the antiferromagnetic clusters act as 4-connecting nodes using ligands that both chelate and bridge between Fe atoms supported by diagonal hydrogen bonding.
Dimethylalkoxygallane incorporating a donor-functionalised alkoxide: the monomeric gas-phase structure
Caroline E. Knapp, Claire J. Carmalt, Paul F. McMillan, Derek A. Wann, Heather E. Robertson and David W. H. Rankin,
Dalton Trans., 2008, 6880
DOI: 10.1039/b817893n
The structure of the vapour produced upon heating dimeric [Me2GaOCH2CH2NMe2]2 has been shown by gas-phase electron diffraction to be monomeric [Me2GaOCH2CH2NMe2], with the nitrogen atom forming a dative bond with the metal centre
Awakening a dormant catalyst: salicylaldimine systems for ethene/tert-butylstyrene copolymerization
Giles W. Theaker, Colin Morton and Peter Scott,
Dalton Trans., 2008, 6883
DOI: 10.1039/b818829g
A group of readily available zirconium catalysts incapable of ethene-co-styrene polymerization are remarkably active and selective for the production of the new polymer ethene-co-tert-butylstyrene via a single site mechanism.
Papers
Electrochemical, ESR and theoretical studies of [6,6]-opened C60(CF2), cis-2-C60(CF2)2 and their anions
Alexey A. Goryunkov, Eugenia S. Kornienko, Tatyana V. Magdesieva, Andrey A. Kozlov, Vsevolod A. Vorobiev, Stanislav M. Avdoshenko, Ilya N. Ioffe, Oleg M. Nikitin, Vitality Yu. Markov, Pavel A. Khavrel, Andrey Kh. Vorobiev and Lev N. Sidorov,
Dalton Trans., 2008, 6886
DOI: 10.1039/b809957j
Structure, electron localization, and lifetimes of electrochemically generated radicals anion of C60(CF2) and cis-2-C60(CF2)2 have been determined. The protonation pathway of decay of C60(CF2) yields [6,6]-opened C60(CF2).
Luminescent gold(I) metallo-acids and their hydrogen bonded supramolecular liquid crystalline derivatives with decyloxystilbazole as hydrogen acceptor
Silverio Coco, Carlos Cordovilla, Cristina Domínguez and Pablo Espinet,
Dalton Trans., 2008, 6894
DOI: 10.1039/b811482j
Luminescent gold(I) metallo-acids [AuX(CNC6H4CO2H)] and [(
-4,4
-C6F4C6F4){Au(CNC6H4CO2H)}2] have been isolated. The carboxylic acid group of the gold isocyanide complexes acts also as a hydrogen donor towards the hydrogen acceptor decyloxystilbazole, affording hydrogen-bonded supramolecular liquid crystals.
Emissive Pt(II) complexes bearing both cyclometalated ligand and 2-pyridyl hexafluoropropoxide ancillary chelate
Sheng-Yuan Chang, Yi-Ming Cheng, Yun Chi, Yi-Chih Lin, Chang-Ming Jiang, Gene-Hsiang Lee and Pi-Tai Chou,
Dalton Trans., 2008, 6901
DOI: 10.1039/b808602h
A new series of mono-cyclometalated Pt(II) complexes with chelating 2-pyridyl hexafluoropropoxide as the ancillary ligand were synthesized.
Silver and gold luminescent metallomesogens based on pyrazole ligands
María José Mayoral, Paloma Ovejero, José Antonio Campo, José Vicente Heras, Elena Pinilla, María Rosario Torres, Carlos Lodeiro and Mercedes Cano,
Dalton Trans., 2008, 6912
DOI: 10.1039/b808487d
New gold and silver complexes based on pyrazole-type ligands exhibiting liquid crystalline and luminescence properties have been achieved.
A computational investigation of the structure of polythiocyanogen
Charlotte S. M. Allan and Henry S. Rzepa,
Dalton Trans., 2008, 6925
DOI: 10.1039/b810147g
GIAO-DFT spectral predictions (13C, 15N, 30S) for a number of possible structures for polythiocyanogen tend to support the assignment of this species as based on 1,2,4-dithiazole rings, from which macrocycles can be constructed as an alternative to linear polymers.
The reduction of platinum(IV) and palladium(IV) ions by 2,6-pyridinedihydroxamic acid
Darren Griffith, Atish Chopra, Helge Müller-Bunz and Celine J. Marmion,
Dalton Trans., 2008, 6933
DOI: 10.1039/b809584a
In this paper we report the unexpected reduction of Pt(IV) and Pd(IV) ions by 2,6-pyridinedihydroxamic acid. Hydroxamic acids, well known for their metal chelating properties, should also now be recognised as potential reducing agents of metal ions.
Synthesis and properties of [Pt(4-CO2CH3-py)2(mnt)]: comparison of pyridyl and bipyridyl-based dyes for solar cells
Lucy P. Moorcraft, Ana Morandeira, James R. Durrant, James R. Jennings, Laurence M. Peter, Simon Parsons, Andrew Turner, Lesley J. Yellowlees and Neil Robertson,
Dalton Trans., 2008, 6940
DOI: 10.1039/b811943k
The first detailed electronic characterisation of the complex-type [Pt(substituted-pyridyl)2(dithiolate)] has been carried out. The complex [Pt(4-CO2CH3-py)2(mnt)] was studied and compared with the bipyridyl analogue in the context of sensitisers for nanocrystalline TiO2.
A new Fe6 ferric cluster: synthesis, crystal structure and magnetic properties
Jing Qian, Jinlei Tian, Wen Gu, Song Gao, Liu Xin, Shiping Yan, Joan Ribas, Daizheng Liao and Peng Cheng,
Dalton Trans., 2008, 6948
DOI: 10.1039/b808916g
A new Fe6 cluster containing two triangular Fe3 units has been synthesized and magnetic properties are shown. Magnetic susceptibility studies reveal the presence of dominant antiferromagnetic exchange interactions.
Impact of the linker groups in bis(7-azaindol-1-yl) chelate ligands on structures and stability of Pt(N,N-L)R2 complexes
Shu-Bin Zhao, Guo-hui Liu, Datong Song and Suning Wang,
Dalton Trans., 2008, 6953
DOI: 10.1039/b813501k
Various linker groups that connect two 7-azaindolyl groups in the chelate ligands, N,N-L have been found to have a significant impact on the stability and the structures of the Pt(N,N-L)R2, R = Me, Ph complexes, which has an important implication in their effective use in C–H activation.
DNA cleavage in red light promoted by copper(II) complexes of 
-amino acids and photoactive phenanthroline bases
Ashis K. Patra, Tuhin Bhowmick, Suryanarayanarao Ramakumar, Munirathinam Nethaji and Akhil R. Chakravarty,
Dalton Trans., 2008, 6966
DOI: 10.1039/b802948b
Complexes [CuII(L-trp)(B)(H2O)]+ having two photosensitizers, the indole ring of L-tryptophan and the quinoxaline or phenazine ring of the phenanthroline base (B), show DNA double strand breaks in red light following a 1O2 pathway.
Unsaturated trinuclear ruthenium carbonyls: large structural differences between analogous carbonyl derivatives of the first, second, and third row transition metals
Bin Peng, Qian-Shu Li, Yaoming Xie, R. Bruce King and Henry F. Schaefer III,
Dalton Trans., 2008, 6977
DOI: 10.1039/b810710f
Density functional theory methods have been used to study the Ru3(CO)n (n = 12, 11, 10, 9) clusters. Significant differences were found between these Ru derivatives and their Fe and Os analogues.
Approaching the minimal metal ion binding peptide for structural and functional metalloenzyme mimicking
Ida Noémi Jakab, Orsolya L
rincz, Attila Jancsó, Tamás Gajda and Béla Gyurcsik,
Dalton Trans., 2008, 6987
DOI: 10.1039/b811452h
Novel peptides have been designed to bind copper(II) and zinc(II). The complexes formed in aqueous solution at pH 
7 served as structural and functional models of redox and hydrolytic enzymes, respectively.
The preparation and full characterization of dichloroferrous complexes of mono-, bis- and tris--methyl substituted tris(2-pyridylmethyl)amine (TPA) ligands. Structural bases of stability of the complexes in solution
Laila Benhamou, Mohammed Lachkar, Dominique Mandon and Richard Welter,
Dalton Trans., 2008, 6996
DOI: 10.1039/b808205g
-Methyl substitution of the ligand within the TPA series causes distortion in FeCl2 complexes. The increase of the Fe(II)/Fe(III) couple upon methyl substitution reflects chloride exchange and formation of cationic species.
Nickel(II) complexes of heterodichalcogenido and monochalcogenido imidodiphosphinate ligands: AACVD synthesis of nickel ditelluride
Stuart D. Robertson, Tristram Chivers, Javeed Akhtar, Mohammad Afzaal and Paul O'Brien,
Dalton Trans., 2008, 7004
DOI: 10.1039/b814065k
The square-planar complexes trans-Ni[(EPiPr2)(TePiPr2)N] (E = S, Se) and trans-Ni[(PiPr2)(EPiPr2)N]2 (E = Se, Te) are prepared by metathesis between NiBr2(DME) and the appropriate lithium reagents. Aerosol-assisted chemical vapour deposition of Ni[(SePiPr2)(TePiPr2)N] yields hexagonal plates of Ni0.51Te at 450 °C.
Synthesis, structure, spectra and reactivity of iron(III) complexes of facially coordinating and sterically hindering 3N ligands as models for catechol dioxygenases
Karuppasamy Sundaravel, Thirumanasekaran Dhanalakshmi, Eringathodi Suresh and Mallayan Palaniandavar,
Dalton Trans., 2008, 7012
DOI: 10.1039/b809142k
The extradiol-to-intradiol product selectivity (E/I) observed for [Fe(L)(Sol)3]3+ in CH2Cl2 solvent is determined by the central and terminal N-alkyl substituents of the 3N ligands.
Unusual room temperature activation of 1,2-dialkoxyalkanes by niobium and tantalum pentachlorides
Fabio Marchetti, Guido Pampaloni and Stefano Zacchini,
Dalton Trans., 2008, 7026
DOI: 10.1039/b810210d
The halides MCl5 (M = Nb, Ta) react with 1,2-dialkoxyalkanes at room temperature. In the 1
:1 molar ratio reactions, the complexes 
MCl4[O(R)CH(R)CH2O]
form prevalently together with alkyl chlorides. The 2:1 reactant/metal reactions lead to the oxychloride adducts MOCl3(L), 1,4-dioxane and methyl chloride.
Back matter
Dalton Trans., 2008, 7036
DOI: 10.1039/b820644a
Back cover
Dalton Trans., 2008, 7039
DOI: 10.1039/b820643k
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