Dalton Transactions

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Excited state potential energy surfaces and their interactions in FeIV[double bond, length as m-dash]O active sites

17 June, 2014 - 12:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01366B, PerspectiveMartin Srnec, Shaun D. Wong, Edward I. Solomon
Excited states and their interactions in low-spin and high-spin non-heme ferryl active sites are probed by low-temperature magnetic circular dichroism spectroscopy providing mechanistic insight into enzymatic functions.
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Synthesis of di- and tetranuclear oxido-molybdenum(V) complexes containing p-toluenesulfonates as ligands: a joint spectroscopic, crystallographic and computational study

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10157-10163
DOI: 10.1039/C4DT00796D, PaperMarco Bortoluzzi, Mohammad Hayatifar, Fabio Marchetti, Guido Pampaloni, Stefano Zacchini
Molybdenum(V) compounds containing the Mo2O2Cl4([small mu ]-Cl)2 frame and a [small mu ]3-coordinated p-toluenesulfonate have been synthesized and analyzed by X-ray and DFT.
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Preparation of ansa-metallocenes for production of poly([small alpha]-olefin) lubricants

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10132-10138
DOI: 10.1039/C4DT00997E, PaperJi Hae Park, Young Eun Jang, Jong Yeob Jeon, Min Jeong Go, Junseong Lee, Sung Kwan Kim, Sang-Ick Lee, Bun Yeoul Lee
ansa-Zirconocenes were prepared, which showed high activity in 1-octene oligomerization with an oligomer distribution suitable for lubricant applications.
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Highly fluorinated hydrotris(indazolyl)borate calcium complexes: the structure and reactivity heavily depend on the ligand's electronic properties

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10114-10119
DOI: 10.1039/C4DT00884G, PaperNuria Romero, Laure Vendier, Chiara Dinoi, Michel Etienne
The coordination properties of two types of highly fluorinated tris(indazolyl)borates towards Ca2+ have been investigated.
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Introducing [Mn(CO)3(tpa-[small kappa]3N)]+ as a novel photoactivatable CO-releasing molecule with well-defined iCORM intermediates - synthesis, spectroscopy, and antibacterial activity

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,9986-9997
DOI: 10.1039/C3DT51848E, PaperChristoph Nagel, Samantha McLean, Robert K. Poole, Holger Braunschweig, Thomas Kramer, Ulrich Schatzschneider
A photoactivatable CO-releasing molecule with a pendant ligand arm gives rise to well-defined iCORM products and shows photoinduced antibacterial activity.
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Gas-phase structures of sterically crowded disilanes studied by electron diffraction and quantum chemical methods: 1,1,2,2-tetrakis(trimethylsilyl)disilane and 1,1,2,2-tetrakis(trimethylsilyl)dimethyldisilane

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10175-10182
DOI: 10.1039/C4DT00628C, PaperJan Schwabedissen, Paul D. Lane, Sarah L. Masters, Karl Hassler, Derek A. Wann
Structures of the two title disilanes have been determined. The presence of bulky, flexible Me3Si groups dictates many aspects of the geometric structures.
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Generation of low-valent tantalum species by reversible C-H activation in a cyclometallated tantalum hydride complex

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10046-10056
DOI: 10.1039/C4DT00923A, PaperBenjamin M. Kriegel, Robert G. Bergman, John Arnold
Ligand C-H activation leads to formation of a cyclometallated Ta(V) hydride complex, which can act as a Ta(III) synthon.
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The synthesis and application of novel Ni(II) N-alkyl dipyridylaldiminato complexes as selective ethylene oligomerisation catalysts

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,9892-9900
DOI: 10.1039/C4DT00537F, PaperAndrew J. Swarts, Selwyn F. Mapolie
A series of dinuclear Cl-bridged Ni(II) complexes, 1a-1e, ligated by N-alkyl 2,2[prime or minute]-dipyridylamine ligands displayed high activity in ethylene oligomerisation, when activated with alkyl aluminium reagents. Steric and electronic effects as well as activation pathways were found to have a significant impact on catalyst activity and selectivity.
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Pros and cons of bifunctional platinum(IV) antitumor prodrugs: two are (not always) better than one

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,9813-9820
DOI: 10.1039/C4DT00911H, PerspectiveElisabetta Gabano, Mauro Ravera, Domenico Osella
Bifunctional Pt(IV) antitumor prodrugs able to deliver the corresponding cytotoxic Pt(II) metabolite and a bioactive ligand are critically reviewed here.
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The specificity of interaction of Zn2+, Ni2+ and Cu2+ ions with the histidine-rich domain of the TjZNT1 ZIP family transporter

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10215-10223
DOI: 10.1039/C4DT00903G, PaperSlawomir Potocki, Daniela Valensin, Henryk Kozlowski
The histidine-rich sequence from the loop between tansmembrane domains (TMDs) III and IV of ZIP transporters binds all studied metal ions with different geometries and with stability increasing in the series Ni2+ < Zn2+ [double less-than] Cu2+; a high specificity for Zn2+ is observed.
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Syntheses and structural investigation of some alkali metal ion-mediated LVVO2- (L2- = tridentate ONO ligands) species: DNA binding, photo-induced DNA cleavage and cytotoxic activities

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10139-10156
DOI: 10.1039/C4DT00883A, PaperSubhashree P. Dash, Alok K. Panda, Sagarika Pasayat, Rupam Dinda, Ashis Biswas, Edward R. T. Tiekink, Yogesh P. Patil, M. Nethaji, Werner Kaminsky, Subhadip Mukhopadhyay, Sujit K. Bhutia
DNA binding, photonuclease and cytotoxic activities of alkali metal ion-mediated dioxidovanadium(V) complexes are reported.
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Evidence of low dimensional ion transport in mechanosynthesized nanocrystalline BaMgF4

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,9901-9908
DOI: 10.1039/C4DT00904E, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.F. Preishuber-Pflugl, M. Wilkening
The ternary fluoride BaMgF4 is mechanically synthesized and shows anisotropic F dynamics even in its nanocrystalline form.
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Yttrium and lanthanide complexes of [small beta]-dialdehydes: synthesis, characterization and luminescence of coordination compounds with the conjugate base of nitromalonaldehyde

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10120-10131
DOI: 10.1039/C4DT00643G, PaperMarco Bortoluzzi, Elena Bianchin, Stefania Roppa, Valerio Bertolasi, Francesco Enrichi
Novel yttrium and lanthanide complexes with the conjugate base of nitromalonaldehyde were synthesized and characterized by X-ray diffraction, IR, NMR and photoluminescence measurements.
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Low temperature synthesis of ionic phosphates in dimethyl sulfoxide

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10033-10039
DOI: 10.1039/C4DT00544A, PaperMartin Mangstl, Vinicius R. Celinski, Sebastian Johansson, Johannes Weber, Feng An, Jorn Schmedt auf der Gunne
A new synthesis route for phosphates in an organic solvent at low temperatures is presented.
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Syntheses, structures and photocatalytic properties of five new praseodymium-antimony oxochlorides: from discrete clusters to 3D inorganic-organic hybrid racemic compounds

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10064-10073
DOI: 10.1039/C4DT00771A, PaperGuo-Dong Zou, Ze-Ping Wang, Ying Song, Bing Hu, Xiao-Ying Huang
Presented here are five Pr-Sb-O-Cl cluster-based compounds with structures from discrete organic-decorated cluster to 3D framework that exhibit photocatalytic H2-evolution activity and magnetic properties.
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The mechanism of catalytic methylation of 2-phenylpyridine using di-tert-butyl peroxide

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10183-10201
DOI: 10.1039/C4DT00250D, PaperAkhilesh K. Sharma, Dipankar Roy, Raghavan B. Sunoj
The mechanism of methylation of 2-phenylpyridine.
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Solid-state emission enhancement in vaulted trans-bis(salicylaldiminato)platinum(II) crystals with halogen functionality

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,10074-10085
DOI: 10.1039/C4DT00560K, PaperNaruyoshi Komiya, Minoru Okada, Kanako Fukumoto, Shotaro Iwata, Takeshi Naota
Chloro-substitution significantly increases the lower heat resistance of short-vaulted, non-substituted trans-bis(salicylaldiminato)Pt(II) complex crystals, and maintains the intense emission of long-vaulted analogues, which leads to intense solid-state emission with low structural dependence.
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Aqueous chemistry and antiproliferative activity of a pyrone-based phosphoramidate Ru(arene) anticancer agent

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,9851-9855
DOI: 10.1039/C4DT00569D, CommunicationSamuel M. Meier, Maria S. Novak, Wolfgang Kandioller, Michael A. Jakupec, Alexander Roller, Bernhard K. Keppler, Christian G. Hartinger
A water-stable phosphoramidate Ru(arene) metallodrug shows antiproliferative activity comparable to KP1019 in human cancer cell lines.
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Transition metal complexes with oligopeptides: single crystals and crystal structures

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,9821-9833
DOI: 10.1039/C4DT00650J, PerspectiveVanesa Lillo, Jose Ramon Galan-Mascaros
The crystal structures of metal complexes with oligopeptides are reviewed, highlighting crystallization strategies and the main binding modes.
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Dehydrogenation of hydrocarbons with metal-carbon multiple bonds and trapping of a titanium(II) intermediate

17 June, 2014 - 12:17

Dalton Trans., 2014, 43,9834-9837
DOI: 10.1039/C4DT01037J, CommunicationAnne K. Hickey, Marco G. Crestani, Alison R. Fout, Xinfeng Gao, Chun-Hsing Chen, Daniel J. Mindiola
Reacting (PNP)Ti[double bond, length as m-dash]CHtBu(CH2tBu) with 2,2[prime or minute]-bipyridine (bipy) in cyclohexane or heptane results in dehydrogenation of the solvent, cleanly producing cyclohexene and 1-heptene, respectively, and a TiII intermediate that is trapped by bipy.
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