Dalton Transactions

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Synthesis, spectroscopy, and binding constants of ketocatechol-containing iminodiacetic acid and its Fe(III), Cu(II), and Zn(II) complexes and reaction of Cu(II) complex with H2O2 in aqueous solution

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7964-7978
DOI: 10.1039/C4DT00118D, PaperJiaojiao Gao, Feifei Xing, Yueling Bai, Shourong Zhu
A ketocatechol-containing iminodiacetic acid ligand can react with metal ions to form different colored species. Its copper(II) complex reacts with H2O2 to form different species depending on the H2O2 concentration and pH.
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Base-promoted aryl-bromine bond cleavage with cobalt(II) porphyrins via a halogen atom transfer mechanism

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7771-7779
DOI: 10.1039/C4DT00155A, PaperChun Ran Liu, Ying Ying Qian, Kin Shing Chan
Aryl-bromine bonds are successfully cleaved by cobalt(II) porphyrins in basic media to give Co(por)Ar (por = porphyrin) through a halogen atom transfer mechanism.
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Borohydrides: from sheet to framework topologies

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7726-7733
DOI: 10.1039/C4DT00160E, PaperP. Schouwink, M. B. Ley, T. R. Jensen, L'. Smrcok, R. Cerny
We stabilized two-dimensional light-metal tetrahedral Li-Mg-BH4 frameworks by introducing large counter-cations, the system LiBH4-Mg(BH4)2 being subject to eutectic melting. An obvious similarity to aluminosilicates points towards the existence of zeolite-type hydridic borohydride frameworks.
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Reduced monoclinic BiVO4 for improved photoelectrochemical oxidation of water under visible light

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7691-7694
DOI: 10.1039/C3DT53575D, CommunicationDong-Dong Qin, Ting Wang, Yu-Min Song, Chun-Lan Tao
A facile and effective method to enhance the performance of a monoclinic BiVO4 film for photoelectrochemical water oxidation by electrochemical and NaBH4 reduction was developed.
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Zinc metal-organic frameworks: efficient catalysts for the diastereoselective Henry reaction and transesterification

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7795-7810
DOI: 10.1039/C4DT00219A, PaperAnirban Karmakar, M. Fatima C. Guedes da Silva, Armando J. L. Pombeiro
Three new amidoterephthalate ligands are utilized to synthesize three new zinc(II) metal-organic frameworks which act as heterogeneous catalysts for the diastereoselective nitroaldol (Henry) and transesterification reactions.
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The various architectures and properties of a series of coordination polymers tuned by the central metals

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,8072-8082
DOI: 10.1039/C4DT00064A, PaperXiu-Li Wang, Jian Luan, Hong-Yan Lin, Mao Le, Guo-Cheng Liu
Five new metal-organic coordination polymers with different central metals have been hydrothermally synthesized. The electrochemical properties of 1-3 and fluorescent sensing behaviors of 4-5 toward ethanol and nitrobenzene have been investigated.
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Fabrication and catalytic activity of FeNi@Ni nanocables for the reduction of p-nitrophenol

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7924-7929
DOI: 10.1039/C4DT00052H, PaperLinyi Zhou, Ming Wen, Qingsheng Wu, Dandan Wu
Core-shell hierarchical-structured FeNi@Ni nanocable catalysts synthesized through a two-step tunable assembly process in a solvothermal system exert excellent catalytic activity for the hydrogenation reduction of p-nitrophenol to p-aminophenol.
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Efficient visible and near-infrared photoluminescent attapulgite-based lanthanide one-dimensional nanomaterials assembled by ion-pairing interactions

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7903-7910
DOI: 10.1039/C4DT00188E, PaperJun Xu, Ye Zhang, Hao Chen, Weisheng Liu, Yu Tang
Efficient photoluminescent attapulgite-based one-dimensional lanthanide hybrid nanomaterials are first fabricated by ion-pairing interactions.
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Equiatomic intermetallic compounds YTX (T = Ni, Ir; X = Si, Ge, Sn, Pb): a systematic study by 89Y solid state NMR and 119Sn Mossbauer spectroscopy

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7860-7867
DOI: 10.1039/C4DT00161C, PaperChristoph Hoting, Hellmut Eckert, Frank Haarmann, Florian Winter, Rainer Pottgen
The equiatomic TiNiSi type tetrelides YTX (space group Pnma) with T = Ni, Ir and X = Si, Ge, Sn, Pb were synthesized from the elements by arc-melting or via high-frequency-melting of the elements in sealed niobium ampoules.
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Exclusive selectivity of multidentate ligands independent on the oxidation state of cobalt: influence of steric hindrance on dioxygen binding and phenoxazinone synthase activity

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7760-7770
DOI: 10.1039/C3DT53546K, PaperAnangamohan Panja
Exclusive selectivity of the acyclic Schiff dibasic form of the ligand over the heterocyclic analogue is reported in the cobalt chemistry. The pronounced effect of the methyl substitutions (position of substitution) on their crystal structures and chemical reactivity has been observed.
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Structural and spectroscopic properties of Yb3+-doped MgAl2O4 nanocrystalline spinel

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7752-7759
DOI: 10.1039/C3DT53644K, PaperRafal J. Wiglusz, Georges Boulon, Yannick Guyot, Malgorzata Guzik, Dariusz Hreniak, Wieslaw Strek
Pechini's sol-gel method was successfully applied to obtain an Yb3+-doped MgAl2O4 spinel nanopowder. The regularity between the observed structural and spectroscopic measurements was described in detail.
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Effect of f-f interactions on quantum tunnelling of the magnetization: mono- and dinuclear Dy(III) phthalocyaninato triple-decker single-molecule magnets with the same octacoordination environment

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7716-7725
DOI: 10.1039/C4DT00042K, PaperKeiichi Katoh, Rina Asano, Akira Miura, Yoji Horii, Takaumi Morita, Brian K. Breedlove, Masahiro Yamashita
The magnetic relaxation time ([small tau]) for 2 was one order of magnitude greater than that for 1.
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Visible light excitable ON fluorescence and naked eye detection of Cu2+via hydrolysis of rhodamine-thiophene conjugate: human breast cancer cell (MCF7) imaging studies

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7747-7751
DOI: 10.1039/C4DT00002A, PaperSangita Adhikari, Abhijit Ghosh, Sandip Mandal, Archya Sengupta, Ansuman Chattopadhyay, Jesus Sanmartin Matalobos, Sisir Lohar, Debasis Das
Rhodamine based probe RDHDTCA selectively senses Cu2+ both colorimetrically and fluorimetrically and works via hydrolysis mechanism.
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Exploring anagostic interactions in 5,15-porphodimethene metal complexes

8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7699-7703
DOI: 10.1039/C3DT53307G, CommunicationM. G. Derry Holaday, Gourav Tarafdar, Arun Kumar, M. L. P. Reddy, A. Srinivasan
By using 5,15-porphodimethene metal complexes, the weak noncovalent anagostic interaction is explored using variable temperature NMR studies and is further confirmed by single crystal X-ray analysis.
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Activation of the C-N bond of N-heterocyclic carbenes by inorganic elements

6 May, 2014 - 01:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT00946K, FrontierKalon J. Iversen, David J. D. Wilson, Jason L. Dutton
This frontier article summarizes the recent activity around a new mode of reactivity for N-heterocyclic carbenes: insertion of inorganic elements into the C-N bond of the carbene ring.
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Lithium, sodium and potassium picolyl complexes: syntheses, structures and bonding

6 May, 2014 - 01:54

Dalton Trans., 2014, Advance Article
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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Formation of cyanates in low-valent uranium chemistry: a synergistic experimental/theoretical study

6 May, 2014 - 01:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT00618F, PaperChristos E. Kefalidis, Alistair S. P. Frey, S. Mark Roe, F. Geoffrey N. Cloke, Laurent Maron
Cyanate formation appears to occur at a monometallic species but is also shown to induce possible formation of a mix-valence complex.
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Bi- and tri-metallic Rh and Ir complexes containing click derived bis- and tris-(pyrazolyl-1,2,3-triazolyl) N-N[prime or minute] donor ligands and their application as catalysts for the dihydroalkoxylation of alkynes

6 May, 2014 - 01:54

Dalton Trans., 2014, 43,7540-7553
DOI: 10.1039/C3DT53295J, PaperKhuong Q. Vuong, Chin M. Wong, Mohan Bhadbhade, Barbara A. Messerle
Bi- and trimetallic Rh and Ir complexes were successfully synthesised from multitopic 'click derived' ligands and shown to catalysed the hydroalkoxylation of alkynes.
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Exceptional capability of nanosized CeO2 materials to "dissolve" lanthanide oxides established by time-gated excitation and emission spectroscopy

2 May, 2014 - 00:54

Dalton Trans., 2014, 43,7622-7630
DOI: 10.1039/C3DT53254B, PaperCarmen Tiseanu, Vasile Parvulescu, Daniel Avram, Bogdan Cojocaru, Margarita Sanchez-Dominguez
No need for bulk doping: Impregnation of CeO2-ZrO2 with 10% Eu3+ followed by calcination stabilizes the pseudo-cubic phase of Eu-CeO2-ZrO2 with a high degree of homogeneity according to luminescence data.
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Iron(II) complexes of 2,6-di(1H-pyrazol-3-yl)-pyridine derivatives with hydrogen bonding and sterically bulky substituents

2 May, 2014 - 00:54

Dalton Trans., 2014, 43,7577-7588
DOI: 10.1039/C4DT00355A, PaperThomas D. Roberts, Marc A. Little, Laurence J. Kershaw Cook, Malcolm A. Halcrow
Complexes like the one shown exhibit extensive hydrogen bonding between the complex, anions and solvent. The resultant hydrogen bonded lattices include a fluorite (flu) net, and a homochiral self-penetrating helical network related to the (10,3)-a (srs) topology.
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