Dalton Transactions

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Redox inactive metal ion triggered N-dealkylation by an iron catalyst with dioxygen activation: a lesson from lipoxygenases

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9847-9859
DOI: 10.1039/C5DT00804B, PaperJisheng Zhang, Yujuan Wang, Nengchao Luo, Zhuqi Chen, Kangbing Wu, Guochuan Yin
Interaction of Zn2+ with Fe(TPA)Cl3 can trigger ET from amine to iron(III) generating a substrate radical which traps dioxygen to produce alkylperoxyl, thus initiating catalytic oxidation, resembling lipoxygenase-like dioxygen activation.
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A mechanistic study of Pd(OAc)2-catalyzed intramolecular C-H functionalization reaction involving CO/isonitrile insertion

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9839-9846
DOI: 10.1039/C5DT00666J, PaperHonghong Gu, Zhiping Qiu, Zhongchao Zhang, Juan Li, Bo Yan
The mechanism of the Pd(OAc)2-catalyzed intramolecular C-H functionalization reaction involving CO/isonitrile insertion was investigated with the aid of density functional theory calculations at the B3LYP level.
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Homopolar dihydrogen bonding in main group hydrides: discovery, consequences, and applications

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9718-9731
DOI: 10.1039/C5DT00221D, PerspectiveDavid J. Wolstenholme, Jessica L. Dobson, G. Sean McGrady
This perspective describes the recent discovery and investigation of homopolar dihydrogen bonding, and focuses on the identification and characterisation of hydride-hydride interactions in compounds of the main group elements.
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Slow magnetic relaxation in two-dimensional 3d-4f complexes based on phenyl pyrimidyl substituted nitronyl nitroxide radicals

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9815-9822
DOI: 10.1039/C4DT03330B, PaperMei Zhu, Juanjuan Wang, Meng Yang, Yue Ma, Licun Li
Three isostructural two-dimensional nitronyl nitroxide bridged 3d-4f complexes have been achieved. The Tb complex shows field-induced two-step magnetic relaxation behavior.
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Crystal structures of benzoxazolyl-copper(III,II,I) complexes and investigation of Cu(II)-mediated aryl carbon-hydrogen bromination

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9921-9926
DOI: 10.1039/C5DT01090J, PaperLianke Wang, Hongping Zhou, Jieying Wu, Yupeng Tian
We report three new copper complexes with different oxidation states based on the phenylbenzoxazole system.
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Synthesis of mixed-valence hexanuclear Mn(II/III) clusters from its Mn(II) precursor: variations of catecholase-like activity and magnetic coupling

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9795-9804
DOI: 10.1039/C5DT00709G, PaperParamita Kar, Yumi Ida, Takuya Kanetomo, Michael G. B. Drew, Takayuki Ishida, Ashutosh Ghosh
A pyrazine bridged 1D coordination polymer of Mn(II) has been oxidized with n-Bu4NMnO4 to hexanuclear Mn(II/III) complexes. Their catecholase-like activities and magnetic interactions have been studied.
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Heterometallic complexes with cube-type [MTi3N4] cores containing Group 10 metals in a variety of oxidation states

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9782-9794
DOI: 10.1039/C5DT01200G, PaperNoelia Martinez-Espada, Miguel Mena, Adrian Perez-Redondo, Victor Varela-Izquierdo, Carlos Yelamos
The metalloligand [{Ti([small eta]5-C5Me5)([small mu ]-NH)}3([small mu ]3-N)] is capable of stabilizing Group 10 metals in the oxidation states 0, II or IV.
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Metal dicarboxylates: new anode materials for lithium-ion batteries with good cycling performance

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9909-9914
DOI: 10.1039/C5DT00500K, PaperHailong Fei, Xin Liu, Zhiwei Li, Wenjing Feng
Manganese 3,5-pyridinedicarboxylate as an anode material for Li-ion batteries showed good cycling stability.
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Cyanide free contraction of disclosed 1,4-dioxane ring as a route to cobalt bis(dicarbollide) derivatives with short spacer between the boron cage and terminal functional group

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9860-9871
DOI: 10.1039/C5DT01293G, PaperAkim V. Shmal'ko, Marina Yu. Stogniy, Grigorii S. Kazakov, Sergey A. Anufriev, Igor B. Sivaev, Leonid V. Kovalenko, Vladimir I. Bregadze
The 1,4-dioxane derivative of cobalt bis(dicarbollide) reacts with dialkylsulfides and triphenylphosphine to give the corresponding sulfonium and phosphonium derivatives.
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Synthesis, characterization and insights into stable and well organized hexagonal mesoporous zinc-doped alumina as promising metathesis catalysts carrier

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9823-9838
DOI: 10.1039/C4DT03630A, PaperAbdelnasser Abidli, Safia Hamoudi, Khaled Belkacemi
ZnCl2-modified hexagonal mesoporous alumina was successfully synthesized, yielding Al-O-Zn-Cl species for supporting methyltrioxorhenium towards methyl oleate self-metathesis.
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Ruthenium catalysts bearing a benzimidazolylidene ligand for the metathetical ring-closure of tetrasubstituted cycloolefins

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9744-9755
DOI: 10.1039/C5DT00433K, PaperYannick Borguet, Guillermo Zaragoza, Albert Demonceau, Lionel Delaude
Second-generation ruthenium-alkylidene complexes featuring the 1,3-di(2-tolyl)benzimidazol-2-ylidene ligand (BTol) are highly efficient catalysts for the synthesis of tetrasubstituted cycloolefins via ring-closing metathesis (RCM).
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Biogenic synthesis of metallic nanoparticles and prospects toward green chemistry

25 May, 2015 - 03:54

Dalton Trans., 2015, 44,9709-9717
DOI: 10.1039/C4DT03222E, PerspectiveSyed Farooq Adil, Mohamed E. Assal, Mujeeb Khan, Abdulrahman Al-Warthan, Mohammed Rafiq H. Siddiqui, Luis M. Liz-Marzan
The immense importance of nanoparticles and growing concerns of environmental impact motivate the exploration of new greener synthetic techniques.
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Correction: Two types of nitrito support for [small mu ]4-oxido-bridged [Cu4] complexes: synthesis, crystal structures, magnetic properties and DFT analysis

21 May, 2015 - 02:54
Dalton Trans., 2015, 44,9691-9692
DOI: 10.1039/C5DT90077H, CorrectionMoumita Pait, Michael Shatruk, Jeff Lengyel, Silvia Gomez-Coca, Antonio Bauza, Antonio Frontera, Valerio Bertolasi, Debashis Ray
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Fluorescent benzene-centered mono-, bis- and tris-triazapentadiene-boron complexes

21 May, 2015 - 02:54

Dalton Trans., 2015, 44,9659-9671
DOI: 10.1039/C5DT00908A, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Christoph Glotzbach, Nadine Godeke, Roland Frohlich, Constantin-Gabriel Daniliuc, Shohei Saito, Shigehiro Yamaguchi, Ernst-Ulrich Wurthwein
The synthesis and photophysical properties in solution and in the solid state of novel sterically crowded 1,3,5-triazapentadiene-boron complexes are described. The absorbance properties are interpreted on the basis of DFT calculations.
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Highly active chromium-based selective ethylene tri-/tetramerization catalysts supported by PNPO phosphazane ligands

21 May, 2015 - 02:54

Dalton Trans., 2015, 44,9545-9550
DOI: 10.1039/C5DT00801H, PaperYusheng Zhou, Hongfei Wu, Sheng Xu, Xuejun Zhang, Min Shi, Jun Zhang
Cr(III) catalysts supported by PNPO ligands are highly active for ethylene tri-/tetramerization with considerable selectivity upon activation with MMAO-3A and a highest activity of 316.7 kg (g Cr h-1)-1.
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Synthesis and structure of rhodium(I) silyl carbonyl complexes: photochemical C-F and C-H bond activation of fluorinated aromatic compounds

21 May, 2015 - 02:54

Dalton Trans., 2015, 44,9450-9469
DOI: 10.1039/C5DT00819K, PaperLada Zamostna, Stefan Sander, Thomas Braun, Reik Laubenstein, Beatrice Braun, Roy Herrmann, Paul Klaring
Rhodium(I) silyl carbonyl complexes such as [Rh{Si(OEt)3}(CO)(dippe)] turned out to be a suitable precursor for the photochemical C-F and C-H bond activation of fluorinated aromatic compounds.
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Mixed-metal metallocavitands: a new approach to tune their electrostatic potentials for controllable selectivity towards substituted benzene derivatives

19 May, 2015 - 02:17

Dalton Trans., 2015, 44,9370-9374
DOI: 10.1039/C5DT01147G, CommunicationJian-Jun Liu, Ying-Fang Guan, Yong Chen, Mei-Jin Lin, Chang-Cang Huang, Wen-Xin Dai
By integrating two different electronegative metal cations into a metallocavitand, the electrostatic potential of the latter and thus its selective recognition towards the substituted benzene derivatives can be modulated.
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Aminobisphenolate supported tungsten disulphido and dithiolene complexes

19 May, 2015 - 02:17

Dalton Trans., 2015, 44,9409-9416
DOI: 10.1039/C5DT00995B, PaperE. Salojarvi, A. Peuronen, R. Sillanpaa, P. Damlin, H. Kivela, A. Lehtonen
Dioxotungsten(VI) complexes react with thionation reagents to form disulphides and furthermore with activated alkyne to generate dithiolene complexes.
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Hydrothermal synthesis of Group 13 metal trifluoride complexes with neutral N-donor ligands

19 May, 2015 - 02:17

Dalton Trans., 2015, 44,9569-9580
DOI: 10.1039/C5DT01120E, PaperRajiv Bhalla, William Levason, Sajinder K. Luthra, Graeme McRobbie, Francesco M. Monzittu, Jazmyn Palmer, Gillian Reid, George Sanderson, Wenjian Zhang
MF3[middle dot]3H2O (M = Al, Ga or In) react with neutral imine ligands under hydrothermal conditions to yield mer-trifluoro complexes with extensive H-bonding.
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Frustrated N-heterocyclic carbene-silylium ion Lewis pairs

19 May, 2015 - 02:17

Dalton Trans., 2015, 44,9400-9408
DOI: 10.1039/C5DT01362C, PaperMiguel F. Silva Valverde, Eileen Theuergarten, Thomas Bannenberg, Matthias Freytag, Peter G. Jones, Matthias Tamm
The reaction of a sterically demanding NHC affords frustrated carbene-trimethylsilylium ion pairs, which exhibit FLP-type reactivity such as carbon dioxide fixation and metal-halide bond activation.
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