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Boronic acids as building blocks for molecular nanostructures and polymeric materials
01 July 2009
Kay Severin discusses how condensation reactions of boronic acids can be used to construct complex molecular architectures
Amine triphenolate complexes: synthesis, structure and catalytic activity
01 July 2009
In this Perspective, Giulia Licini and coworkers focus on triphenolamines and the catalytic performances of their corresponding complexes
FREE articles for FIGIPAS 2009
A selection of articles describing work related to the topics covered at FIGIPAS are collected here, and these are free for the month of July.
Contents list for Dalton Transactions, issue 27, 2009
Front cover
Dalton Trans., 2009, 5241
DOI: 10.1039/b911796m
Inside front cover
Dalton Trans., 2009, 5242
DOI: 10.1039/b911797k
Contents and Chemical Science
Dalton Trans., 2009, 5243
DOI: 10.1039/b911799g
Perspectives
Boronic acids as building blocks for molecular nanostructures and polymeric materials
Kay Severin,
Dalton Trans., 2009, 5254
DOI: 10.1039/b902849h
Condensation reactions of boronic acids can be used to construct complex molecular architectures such as cages and covalent organic frameworks from simple starting materials.
Amine triphenolate complexes: synthesis, structure and catalytic activity
Giulia Licini, Miriam Mba and Cristiano Zonta,
Dalton Trans., 2009, 5265
DOI: 10.1039/b822653a
A Perspective focusing on triphenolamines: their synthesis, coordination chemistry with early and late transition metals and main group elements and catalytic performances of the corresponding complexes as Lewis acids.
Communications
Oxygen isotopic exchange in an MnIIIMn3IV-oxo cubane
C. André Ohlin, Robin Brimblecombe, Leone Spiccia and William H. Casey,
Dalton Trans., 2009, 5278
DOI: 10.1039/b906169j
Rates and activation parameters for oxygen exchange in the [Mn4O4(PO2(C6H4OCH3)2)6]+ cubane cluster are determined by following 18O-enrichment in the cluster by ESI-MS.
The first binucleating amino-thiophenolate macrocycles with pendant hydroxyethyl groups
Mathias Gressenbuch and Berthold Kersting,
Dalton Trans., 2009, 5281
DOI: 10.1039/b908553j
The synthesis of pendant donor macrocyclic amino-thiophenolate ligands with up to six hydroxyethyl arms has been achieved. The crystal structures of two proligands and a Ni2Na4 complex of one deprotected derivative are reported.
Synthesis, characterisation and coordination chemistry of a new multidentate P2N4 ligand system
Philip W. Miller, Nicholas J. Long and Andrew J. P. White,
Dalton Trans., 2009, 5284
DOI: 10.1039/b905749h
A new potentially hexadentate P2N4 ligand, based on a diphosphine backbone and four pendant pyridyl donors, displays interesting fluxional pyridyl exchange at the Pt(II) centre.
A novel non-centrosymmetric metallophosphate-borate compound via ionothermal synthesis
Zhuojia Lin, David S. Wragg, Philip Lightfoot and Russell E. Morris,
Dalton Trans., 2009, 5287
DOI: 10.1039/b904450g
A non-centrosymmetric metallophosphate–borate compound can be prepared using an ionic liquid as solvent. Two different alkyl ammonium cations act as templates in the material.
Papers
Metal complexes with N-(2-pyridylmethyl)iminodiacetate: from discrete polynuclear compounds to 1D coordination polymers
Zilu Chen, Yan Li, Chunfang Jiang, Fupei Liang and You Song,
Dalton Trans., 2009, 5290
DOI: 10.1039/b902674f
The titled five complexes display a structure variation from discrete polynuclear to 1D coordination polymer along Mn(II), Co(II) to Ni(II), and a dependence of the formation of discrete compound or coordination polymer on the identity of the metal ion. The magnetic investigations of three discrete compounds were carried out.
Syntheses and structures of (N
,N-dimethylhydrazido)silanes
Ingo Gronde, Beate Neumann, Alexander Willner, Tania Pape and Norbert W. Mitzel,
Dalton Trans., 2009, 5300
DOI: 10.1039/b900293f
A range of different hydrazidosilanes with N–H and Si–H and/or Si–Cl functions have been prepared; they show the limits of stability with regard to the presence of mutually reacting groups and their intermolecular aggregation by N
H–N hydrogen bonds.
Syntheses, crystal and electronic structures of compounds AM(PO4)2 (A = Sr, M = Ti, Sn; A = Ba, M = Sn)
Dan Zhao, Hao Zhang, Zhi Xie, Wei-Long Zhang, Song-Ling Yang and Wen-Dan Cheng,
Dalton Trans., 2009, 5310
DOI: 10.1039/b822336j
SrM(PO4)2 (M = Ti, Sn) are isostructural and crystallize in a layer built structure composed of [M(PO4)2]2- anionic groups and Sr2+ cations. In fact, it can be considered to be a novel distorted yavapaiite structure type.
Towards robust alkane oxidation catalysts: electronic variations in non-heme iron(II) complexes and their effect in catalytic alkane oxidation
Jason England, Reema Gondhia, Laura Bigorra-Lopez, Allan R. Petersen, Andrew J. P. White and George J. P. Britovsek,
Dalton Trans., 2009, 5319
DOI: 10.1039/b901390c
The effect of electron withdrawing and donating substituents in the para position of the pyridine ligands, as well as the effect of sulfur or oxygen donors instead of nitrogen donors on the catalytic alkane oxidation activity of non-heme iron catalysts has been investigated.
Neutral and cationic main group element cages of germanium(II) with pyrazolyl ligands: solid state structures, DFT calculations and advanced solution NMR investigations
Ivo Krummenacher, Ignacio Fernández, Heinz Rüegger, Florian Weigend and Frank Breher,
Dalton Trans., 2009, 5335
DOI: 10.1039/b901711a
A straightforward synthetic access towards cationic germanium/nitrogen cages [Ge(
2-R2pz)3Ge]+[OTf]- is described. Detailed NMR investigations, DFT calculations and molecular structures of these Janus-head molecules are presented.
1,1- and 1,2-isomers of the diborane(4) compound B2{1,2-(NH)2C6H4}2 and a TCNQ Co-crystal of the 1,1-isomer
M. A. M. Alibadi, A. S. Batsanov, G. Bramham, J. P. H. Charmant, M. F. Haddow, L. MacKay, S. M. Mansell, J. E. McGrady, N. C. Norman, A. Roffey and C. A. Russell,
Dalton Trans., 2009, 5348
DOI: 10.1039/b822225h
The synthesis and structure of the diborane(4) isomers 1,1-B2{1,2-(NH)2C6H4}2 and 1,2-B2{1,2-(NH)2C6H4}2 are described together with the results of quantum chemical calculations which shed light on their relative stabilities.
Structural diversity and properties of ZnII and CdII complexes with a flexible dicarboxylate building block 1,3-phenylenediacetate and various heterocyclic co-ligands
Mei-Li Zhang, Dong-Sheng Li, Ji-Jiang Wang, Feng Fu, Miao Du, Kun Zou and Xiao-Ming Gao,
Dalton Trans., 2009, 5355
DOI: 10.1039/b901418g
This work presents a series of ZnII and CdII complexes with a flexible 1,3-phenylenediacetate ligand and a systemic exploration on the construction of diverse polymeric networks by changing the auxiliary N-donor ligands. These coordination frameworks, varying from 0D to 3D, are profoundly influenced by the co-ligands as well as metal ions.
Interplay of coordinative and supramolecular interactions in formation of a series of metal–organic complexes bearing diverse dimensionalities
Jian-Qiang Liu, Ya-Nan Zhang, Yao-Yu Wang, Jun-Cheng Jin, Elmira Kh. Lermontova and Qi-Zhen Shi,
Dalton Trans., 2009, 5365
DOI: 10.1039/b822083b
A series of interesting structures and topological analyses of these compounds, along with a systematic investigation on the effects of metal ions and neutral ligands on the ultimate frameworks, are discussed.
Complexation of uranium(VI) with peptidoglycan
Astrid Barkleit, Henry Moll and Gert Bernhard,
Dalton Trans., 2009, 5379
DOI: 10.1039/b818702a
Peptidoglycan (PG) forms stable complexes with the uranyl ion from middle acidic to slight alkaline pH with carboxyl and amino or hydroxyl coordination.
Self-assembly of silver(I) and bis-bidentate N,N-donor ligands: from a tetranuclear complex to coordination polymers
Partha Halder, Ennio Zangrando and Tapan Kanti Paine,
Dalton Trans., 2009, 5386
DOI: 10.1039/b900581a
The self-assembly of silver(I) and bis-bidentate N,N-donor ligands of variable flexibility is studied. The solid-state structures of a tetranuclear silver(I) complex and of three silver(I) coordination polymers of different tacticity are described. The results provide an insight about the effect of ligand spacer and other non-covalent interactions in stabilising the self-assembled structures.
Synthesis of a novel bifunctional chelator AmBaSar based on sarcophagine for peptide conjugation and 64Cu radiolabelling
Hancheng Cai, John Fissekis and Peter S. Conti,
Dalton Trans., 2009, 5395
DOI: 10.1039/b902210d
We have developed a novel Sar ligand, AmBaSar, which contains a hexa-aza cage for 64Cu radiolabelling and an aromatic carboxyl linker for conjugating cyclic RGD peptide through the lysine amine.
Reduction of terphenyl iron(II) or cobalt(II) halides in the presence of trimethylphosphine: an unusual triple dehydrogenation of an alkyl group
Chengbao Ni, Bobby D. Ellis, Troy A. Stich, James C. Fettinger, Gary J. Long, R. David Britt and Philip P. Power,
Dalton Trans., 2009, 5401
DOI: 10.1039/b904647j
Reduction of the arylterphenyl metal halides (ArMX)2 with KC8 in the presence of PMe3 affords the very unusual reduction products illustrated.
Copolymerization of CO2 and cyclohexene oxide using a lysine-based (salen)CrIIICl catalyst
Liping Guo, Congmin Wang, Wenjia Zhao, Haoran Li, Weilin Sun and Zhiquan Shen,
Dalton Trans., 2009, 5406
DOI: 10.1039/b821184a
A natural lysine-based (salen)CrIIICl complex was synthesized for the first time, and it could effectively catalyze the alternating copolymerization of CO2 and cyclohexene oxide.
Back cover
Dalton Trans., 2009, 5411
DOI: 10.1039/b911801m
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