Dalton Transactions

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Modulation of the electronic and spectroscopic properties of Zn(II) phthalocyanines by their substitution pattern

9 April, 2014 - 19:17

Dalton Trans., 2014, 43,6897-6908
DOI: 10.1039/C3DT53410C, PaperSevinc Z. Topal, Umit Isci, Ufuk Kumru, Devrim Atilla, Ayse G. Gurek, Catherine Hirel, Mahmut Durmus, Jean-Bernard Tommasino, Dominique Luneau, Savas Berber, Fabienne Dumoulin, Vefa Ahsen
Four octasubstituted zinc phthalocyanines with variations in attachment atom and substituent positions were selected for systematic investigation into their properties.
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MnOx-modified ZnAl-LDOs as high-performance adsorbent for the removal of methyl orange

9 April, 2014 - 19:17

Dalton Trans., 2014, 43,6667-6676
DOI: 10.1039/C3DT53597E, PaperYu Xin Zhang, Xiao Dong Hao, Tian Wang, Yu Xin Meng, Xu Han
In this work, MnOx modified ZnAl layered double oxides (M-LDO) nanocomposites were successfully prepared through an intercalation/reduction/calcination process. The as-prepared M-LDO adsorbents displayed excellent adsorption capacity and cycling stability for the removal of methyl orange.
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Syntheses, crystal structures and UV-visible absorption properties of five metal-organic frameworks constructed from terphenyl-2,5,2[prime or minute],5[prime or minute]-tetracarboxylic acid and bis(imidazole) bridging ligands

9 April, 2014 - 19:17

Dalton Trans., 2014, 43,6701-6710
DOI: 10.1039/C3DT53379D, PaperLiming Fan, Xiutang Zhang, Wei Zhang, Yuanshuai Ding, Weiliu Fan, Liming Sun, Yue Pang, Xian Zhao
Five novel coordination polymers based on terphenyl-2,5,2[prime or minute],5[prime or minute]-tetracarboxylic acid and bis(imidazole) bridging ligands.
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New oligogermane with a five coordinate germanium atom: the preparation of 1-germylgermatrane

9 April, 2014 - 19:17

Dalton Trans., 2014, 43,6605-6609
DOI: 10.1039/C3DT53523A, CommunicationKirill V. Zaitsev, Andrei V. Churakov, Oleg Kh. Poleshchuk, Yuri F. Oprunenko, Galina S. Zaitseva, Sergey S. Karlov
The first example of a hypercoordinate oligogermane was prepared and characterized.
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Growth mechanism and photocatalytic activity of self-organized N-doped (BiO)2CO3 hierarchical nanosheet microspheres from bismuth citrate and urea

9 April, 2014 - 19:17

Dalton Trans., 2014, 43,6631-6642
DOI: 10.1039/C3DT53383B, PaperFan Dong, Ting Xiong, Rui Wang, Yanjuan Sun, Yanke Jiang
A new growth mechanism was proposed for the self-organized N-doped (BiO)2CO3 hierarchical nanosheet microspheres with efficient and durable photocatalytic activity.
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C-Cl bond activation and catalytic hydrodechlorination of hexachlorobenzene by cobalt and nickel complexes with sodium formate as a reducing agent

9 April, 2014 - 19:17

Dalton Trans., 2014, 43,6660-6666
DOI: 10.1039/C3DT52985A, PaperJunye Li, Xiaoyan Li, Lin Wang, Qingping Hu, Hongjian Sun
A benzyne cobalt complex, Co([small eta]2-C6Cl4)(PMe3)3 (2), was generated from the reaction of hexachlorobenzene with 2 equiv. of Co(PMe3)4 through selective activation of two C-Cl bonds of hexachlorobenzene.
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New perspectives in hydrogen storage based on RCH2NH2/RCN couples

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6283-6286
DOI: 10.1039/C3DT53583E, FrontierM. Grellier, S. Sabo-Etienne
A possible LOHC facility from an amine/nitrile couple.
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Stereoselective formation of a meso-diruthenium(II,II) complex and tuning the properties of its monoruthenium analogues

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6567-6577
DOI: 10.1039/C4DT00112E, PaperAmlan K. Pal, Garry S. Hanan
Ruthenium(II) complexes of strong [sigma]-donating ligands have been synthesized and characterized by various analytical techniques including DFT and TD-DFT calculations. Due to unique design of a bis(bidentate) ligand, the meso-diruthenium(II,II) complex was isolated with high diastereoselectivity.
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A series of NiII-flavonolate complexes as structural and functional ES (enzyme-substrate) models of the NiII-containing quercetin 2,3-dioxygenase

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6480-6489
DOI: 10.1039/C3DT53349B, PaperYing-Ji Sun, Qian-Qian Huang, Jian-Jun Zhang
[NiIILR(fla)] (LRH = 2-{[bis(pyridin-2-ylmethyl)amino]methyl}-p/m-R-benzoic acid, R = OMe(1), Me(2), Br(4), and NO2(5), fla = flavonolate) are reported as ES models of NiII-2,3-QD, which exhibit higher enzyme-type reactivity and structure-reactivity relationship.
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Aqueous complexation of citrate with neodymium(III) and americium(III): a study by potentiometry, absorption spectrophotometry, microcalorimetry, and XAFS

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6446-6454
DOI: 10.1039/C4DT00343H, PaperM. Alex Brown, A. Jeremy Kropf, Alena Paulenova, Artem V. Gelis
A new light is shed on the complexation of citric acid and the f-elements with regards to nuclear fuel reprocessing.
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Swift photoswitching in a binuclear Zn(II) metallacycle relative to a salen-type ligand

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6365-6376
DOI: 10.1039/C4DT00248B, PaperAmit Kumar, Rampal Pandey, Rakesh Kumar Gupta, Veenu Mishra, Shaikh M. Mobin, Daya Shankar Pandey
The photoswitching behavior of a new Schiff base ligand (H2L) and its binuclear zinc(II) metallacycle (1) have been described. Spectral, electrochemical and theoretical studies revealed that trans/cis isomerisation in 1 ([similar]5.0 sec) is rapid relative to H2L ([similar]25 sec).
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Long range charge transfer in trimetallic mixed-valence iron complexes mediated by redox non-innocent cyanoacetylide ligands

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6291-6294
DOI: 10.1039/C4DT00614C, CommunicationJosef B. G. Gluyas, Andrew J. Boden, Samantha G. Eaves, Herrick Yu, Paul J. Low
A redox active 9-atom, 10-bond -C[triple bond, length as m-dash]C-C[triple bond, length as m-dash]N{Fe(dppx)2}N[triple bond, length as m-dash]C-C[triple bond, length as m-dash]C- bridge is shown to be effective at promoting electron transfer between metal centres separated by some 15 A.
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Probing interactions through space using spin-spin coupling

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6548-6560
DOI: 10.1039/C4DT00408F, PaperMartin W. Stanford, Fergus R. Knight, Kasun S. Athukorala Arachchige, Paula Sanz Camacho, Sharon E. Ashbrook, Michael Buhl, Alexandra M. Z. Slawin, J. Derek Woollins
A series of eight 5-(TeAr)-6-(SePh)acenaphthenes (Ar = aryl) were prepared and structurally characterised by X-ray crystallography, solution and solid-state NMR spectroscopy and DFT/B3LYP calculations.
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Synthesis, crystal structure and EPR spectroscopic analysis of novel copper complexes formed from N-pyridyl-4-nitro-1,8-naphthalimide ligands

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6468-6479
DOI: 10.1039/C3DT53323A, PaperJonathan A. Kitchen, Paulo N. Martinho, Grace G. Morgan, Thorfinnur Gunnlaugsson
The synthesis of two new monodentate pyridyl based 4-nitro-1,8-naphthalimide ligands and their corresponding Cu-complexes (using various salts) is described. Of these, complexes 1-3 and 5, all gave rise to structures that were characterised by X-ray crystallography and EPR.
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A homoleptic [small eta]2 hydroxylaminato CeIV complex with S4 symmetry

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6300-6303
DOI: 10.1039/C4DT00287C, CommunicationWalter L. Dorfner, Patrick J. Carroll, Eric J. Schelter
An electron rich, air-stable hydroxylamine ligand and a strongly stabilized cerium(IV) hydroxylaminato complex are described.
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Sensitisation of Eu(III)- and Tb(III)-based luminescence by Ir(III) units in Ir/lanthanide dyads: evidence for parallel energy-transfer and electron-transfer based mechanisms

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6414-6428
DOI: 10.1039/C4DT00292J, PaperDaniel Sykes, Ahmet J. Cankut, Noorshida Mohd Ali, Andrew Stephenson, Steven J. P. Spall, Simon C. Parker, Julia A. Weinstein, Michael D. Ward
In Ir(III)/Eu(III) and Ir(III)/Tb(III) dyads, sensitization of lanthanide luminescence occurs via both energy-transfer and electron-transfer pathways on similar timescales.
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Nickel L-edge and K-edge X-ray absorption spectroscopy of non-innocent Ni[S2C2(CF3)2]2n series (n = -2, -1, 0): direct probe of nickel fractional oxidation state changes

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6406-6413
DOI: 10.1039/C4DT00308J, PaperWeiwei Gu, Hongxin Wang, Kun Wang
Ni L- and K-edge X-ray absorption spectroscopies reveal Ni oxidation state changes experimentally and quantitatively [similar]30% with 1-electron oxidation for Ni[S2C2(CF3)2]2n.
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The role of carboxylato ligand dissociation in the oxidation of chrysin with H2O2 catalysed by [Mn2III,IV([small mu ]-CH3COO)([small mu ]-O)2(Me4dtne)](PF6)2

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6322-6332
DOI: 10.1039/C3DT53174K, PaperShaghayegh Abdolahzadeh, Nicola M. Boyle, M. Lisa Hoogendijk, Ronald Hage, Johannes W. de Boer, Wesley R. Browne
The loss of the acetato ligand is shown to be key to the activity of this manganese catalyst at pH 11 in bleaching of chrysin.
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A hybrid vanadium fluoride with structurally isolated S = 1 kagome layers

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6304-6307
DOI: 10.1039/C4DT00452C, CommunicationFarida H. Aidoudi, Lewis J. Downie, Russell E. Morris, Mark A. de Vries, Philip Lightfoot
A novel hybrid vanadium fluoride displaying isolated S = 1 kagome layers separated by ammonium and ethylammonium cations is prepared; this compound shows interesting magnetic properties.
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Multiplying the electron storage capacity of a bis-tetrazine pincer ligand

7 April, 2014 - 18:54

Dalton Trans., 2014, 43,6513-6524
DOI: 10.1039/C4DT00341A, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Christopher R. Benson, Alice K. Hui, Kumar Parimal, Brian J. Cook, Chun-Hsing Chen, Richard L. Lord, Amar H. Flood, Kenneth G. Caulton
A new nitrogen-rich pincer ligand is the key to develop quantitatively rich "redox non-innocent" reductive chemistry when complexed to Fe(2+), as illustrated.
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