Dalton Transactions

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Discriminate sensing of pyrophosphate using a new tripodal tetramine-based dinuclear Zn(II) complex under an indicator displacement assay approach

18 September, 2014 - 11:54

Dalton Trans., 2014, 43,14701-14709
DOI: 10.1039/C3DT52392F, PaperSarayut Watchasit, Pattira Suktanarak, Chomchai Suksai, Vithaya Ruangpornvisuti, Thawatchai Tuntulani
The tripodal tetramine dinuclear Zn(II) complex, Zn2L, was used to discriminate PPi from other phosphate containing anions under an indicator displacement assay using a methylthymol blue indicator.
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Contrasting reactivity behaviour of the [RuHCl(CO)(PNP)] complex with electrophilic reagents XOTf (X = H, CH3, Me3Si)

18 September, 2014 - 11:54

Dalton Trans., 2014, 43,14625-14635
DOI: 10.1039/C4DT01570C, PaperA. Ramaraj, Munirathinam Nethaji, Balaji R. Jagirdar
Reaction of a ruthenium hydride complex bearing a pincer ligand with H+ gave [small eta]2-H2 complex whereas, reaction with CH3+ or Me3Si+ electrophiles resulted in elimination of CH3Cl or Me3SiCl via a SN2 type of reaction. The contrasting reactivity behaviour is due to stereoelectronic features of the ruthenium complex.
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Boron-centered soft ligands based on tetrazole units and their complexes with sodium, potassium and bismuth ions

18 September, 2014 - 11:54

Dalton Trans., 2014, 43,14737-14748
DOI: 10.1039/C4DT01931H, PaperMuhammad Imran, Andreas Mix, Beate Neumann, Hans-Georg Stammler, Uwe Monkowius, Petra Bleckenwegner, Norbert W. Mitzel
Syntheses of sodium and potassium tetrazolylborate salts based on 1-methyl-5-thiotetrazole and 1-phenyl-5-thiotetrazole are described and used as precursors for corresponding bismuth(III) and bismuth(II) complexes.
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A spectrophotometric study of Am(III) complexation with nitrate in aqueous solution at elevated temperatures

18 September, 2014 - 11:54

Dalton Trans., 2014, 43,14565-14569
DOI: 10.1039/C4DT01183J, PaperGuoxin Tian, David K. Shuh
The complexation of americium(III) with nitrate was studied at temperatures from 10 to 85 [degree]C in 1 M HNO3-HClO4 by spectrophotometry.
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Versatile redox reactivity of triaryl-meso-substituted Ni(II) porphyrin

18 September, 2014 - 11:54

Dalton Trans., 2014, 43,14554-14564
DOI: 10.1039/C4DT00221K, PaperAbdou K. D. Dime, Charles H. Devillers, Helene Cattey, Dominique Lucas
The electrochemical oxidation of a Ni(II) tri-arylporphyrin leads to the 5-Cl and 5-OH-porphyrins, the meso-meso, meso-[small beta] and meso-[small beta]/meso-[small beta] doubly fused dimers depending on the experimental conditions. Among them, the Ni(II) 5-Cl-porphyrin is isolated in good yield and its formation mechanism is elucidated.
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Selective hydrolysis of oxidized insulin chain B by a Zr(IV)-substituted Wells-Dawson polyoxometalate

18 September, 2014 - 11:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01477D, PaperAnnelies Sap, Gregory Absillis, Tatjana N. Parac-Vogt
The reactivity of a Zr(IV)-substituted Wells-Dawson POM towards the flexible 30-mer polypeptide, oxidized insulin chain B, was examined. Hydrolysis of the polypeptide has been achieved at physiological pH and temperature in a fast (0.45 h-1) and selective manner.
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Synthesis and crystal structure of a series of incommensurately modulated composite oxohalide compounds

18 September, 2014 - 11:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT02084G, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Iwan Zimmermann, Alexis Corgnet, Mats Johnsson, Sven Lidin
The new isostructural oxohalides [Sb4O7+3[small delta]X4][Zn3]1+[small delta] (X = Cl, Br, I), [small delta] [approximate] 0.2 have a composite structure, in which the Zn atoms are best described in a second-unit cell. The composite nature of the structure leads to a charge imbalance that is compensated by oxygen vacancies.
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Inorganic-organic hybrid silica based tin complex as a novel, highly efficient and recyclable heterogeneous catalyst for the one-pot preparation of spirooxindoles in water

18 September, 2014 - 11:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT02038C, PaperRamin Ghahremanzadeh, Zahra Rashid, Amir-Hassan Zarnani, Hossein Naeimi
A tin complex immobilized on silica gel was prepared and applied as a green and heterogeneous reusable catalyst for one-pot three-component synthesis of spirooxindoles in water.
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Novel (cyanamide)ZnII complexes and zinc(II)-mediated hydration of the cyanamide ligands

18 September, 2014 - 11:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01812E, PaperAndrey S. Smirnov, Ekaterina S. Butukhanova, Nadezhda A. Bokach, Galina L. Starova, Vladislav V. Gurzhiy, Maxim L. Kuznetsov, Vadim Yu. Kukushkin
The ZnII-mediated hydration of cyanamides does not require any co-catalyst.
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Stabilization of MIV = Ti, Zr, Hf, Ce, and Th using a selenium bis(phenolate) ligand

16 September, 2014 - 11:17

Dalton Trans., 2015, Advance Article
DOI: 10.1039/C4DT01798F, PaperAndrew C. Behrle, Jessica R. Levin, Jee Eon Kim, Jonathan M. Drewett, Charles L. Barnes, Eric J. Schelter, Justin R. Walensky
We report M(IV) M = Ti, Zr, Hf, Ce, and Th, complexes of a selenium bis(phenolate) ligand, 2,2[prime or minute]-selenobis(4,6-di-tert-butylphenol), (H2ArOSeO).
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Electrochemical fluorination of perovskite type BaFeO2.5

16 September, 2014 - 11:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT02485K, PaperOliver Clemens, Carine Rongeat, M. Anji Reddy, Andreas Giehr, Maximilian Fichtner, Horst Hahn
Here we report on the first electrochemical fluorination exemplarily performed on perovskite type BaFeO2.5.
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Reactivity of boryllithium with AlMe3, AlEt3, and GaMe3, including the synthesis of a lanthanum heterogallate complex

16 September, 2014 - 11:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT02155J, PaperNicole Dettenrieder, Christoph Schadle, Cacilia Maichle-Mossmer, Reiner Anwander
Equimolar amounts of MR3 (R = Me: M = Al, Ga; R = Et: M = Al) formally insert into the B-Li bond of boryllithium B-Li(THF)2, whereas use of excessive amounts of group 13 metal alkyl leads to the separation of lithium alkylaluminate.
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Tetraphenylethylene-based phosphine: tuneable emission and carbon dioxide fixation

16 September, 2014 - 11:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01808G, PaperJianyong Zhang, Qiuli Yang, Yixuan Zhu, Haoliang Liu, Zhenguo Chi, Cheng-Yong Su
A mixture of Ag+ and a tetraphenylethylene-based phosphine, with aggregation-induced and mechano-responsive emission, fixes atmospheric CO2 into a 3D framework.
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Synthesis of DMF-protected Au NPs with different size distributions and their catalytic performance in the Ullmann homocoupling of aryl iodides

16 September, 2014 - 11:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01856G, PaperWang Yao, Wei-Jie Gong, Hong-Xi Li, Fei-Long Li, Jun Gao, Jian-Ping Lang
DMF-protected Au NPs with different sizes were prepared and their catalytic performance in the Ullmann homocoupling of aryl iodides was investigated.
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Alkali metal salts of ditopic carbanionic carbenes as reagents for the synthesis of novel complexes of group 12 and 14 metals

16 September, 2014 - 11:17

Dalton Trans., 2014, 43,14239-14248
DOI: 10.1039/C4DT00954A, PaperJordan B. Waters, Jose M. Goicoechea
Reaction of the novel organo-potassium compound [:C[N(2,6-iPr2C6H3)]2(CH)CK(THF)2] (KIPr[middle dot]2THF) with M[N(SiMe3)2]2 (M = Zn, Sn, Ge, Pb) afforded salts of the anionic three coordinate complexes [M{C(CH)[N(2,6-iPr2C6H3)]2C:}{N(SiMe3)2}2]- (M = Zn (1), Sn (2), Ge (3), Pb (4)).
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Reactivity of the uranium(IV) carbene complex [U(BIPMTMS)(Cl)([small mu ]-Cl)2Li(THF)2] (BIPMTMS = {C(PPh2NSiMe3)2}) towards carbonyl and heteroallene substrates: metallo-Wittig, adduct formation, C-F bond activation, and [2 + 2]-cycloaddition reactions

16 September, 2014 - 11:17

Dalton Trans., 2014, 43,14275-14283
DOI: 10.1039/C4DT00909F, PaperOliver J. Cooper, David P. Mills, William Lewis, Alexander J. Blake, Stephen T. Liddle
Reactivity of a uranium(IV)-carbene towards carbonyls and heteroallenes is described.
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Lithium, sodium and potassium picolyl complexes: syntheses, structures and bonding

16 September, 2014 - 11:17

Dalton Trans., 2014, 43,14265-14274
DOI: 10.1039/C4DT00808A, PaperAlan R. Kennedy, Robert E. Mulvey, Robert I. Urquhart, Stuart D. Robertson
A series of alkali metal 2- and 4-picolyl (methylpyridyl) complexes have been prepared and their metal-anion bonding probed in the solid state and solution.
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Synthesis and thermal decomposition of a pyridylene-bridged bis-[small beta]-diketiminate magnesium hydride cluster

16 September, 2014 - 11:17

Dalton Trans., 2014, 43,14284-14290
DOI: 10.1039/C4DT00835A, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Sjoerd Harder, Jan Spielmann, Julia Intemann
Thermal decomposition of a magnesium hydride complex with four Mg2+ and four H- ions leads to H2 elimination and ligand reduction.
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Ligand influences on homoleptic Group 12 m-terphenyl complexes

16 September, 2014 - 11:17

Dalton Trans., 2014, 43,14257-14264
DOI: 10.1039/C4DT00647J, PaperToby J. Blundell, Fiona R. Hastings, Benjamin M. Gridley, Graeme J. Moxey, William Lewis, Alexander J. Blake, Deborah L. Kays
The analysis of three series of two-coordinate Group 12 bis-terphenyl complexes highlights how subtle changes to ligand properties, particularly sterics, and, to a smaller extent, electronics have a large effect on the solid state structures adopted.
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Catalytic hydroacetylenation of carbodiimides with homoleptic alkaline earth hexamethyldisilazides

16 September, 2014 - 11:17

Dalton Trans., 2014, 43,14249-14256
DOI: 10.1039/C3DT53542H, PaperMerle Arrowsmith, Mark R. Crimmin, Michael S. Hill, Sarah L. Lomas, Myra Sae Heng, Peter B. Hitchcock, Gabriele Kociok-Kohn
The homoleptic alkaline earth hexamethyldisilazides, [M{N(SiMe3)2}2(THF)2] (M = Mg, Ca, Sr), are shown to be efficient precatalysts for the hydroacetylenation of organic carbodiimides with alkyl- and arylacetylenes.
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