Dalton Transactions

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Tunable long lasting phosphorescence due to the selective energy transfer from defects to luminescent centres via tunnelling in Mn2+ and Tm3+ co-doped zinc pyrophosphate

9 June, 2014 - 10:17

Dalton Trans., 2014, 43,9661-9668
DOI: 10.1039/C4DT00223G, PaperRan Pang, Yonglei Jia, Ran Zhao, Haifeng Li, Jipeng Fu, Wenzhi Sun, Lihong Jiang, Su Zhang, Chengyu Li, Qiang Su
Tunable long lasting phosphorescence from blue to NIR are achieved from Zn2(0.97-x)P2O7:0.06Tm3+,2xMn2+ phosphors due to selectively energy transfer.
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In situ decoration of plasmonic Ag nanocrystals on the surface of (BiO)2CO3 hierarchical microspheres for enhanced visible light photocatalysis

9 June, 2014 - 10:17

Dalton Trans., 2014, 43,9468-9480
DOI: 10.1039/C4DT00427B, PaperFan Dong, Qiuyan Li, Ying Zhou, Yanjun Sun, Haidong Zhang, Zhongbiao Wu
Plasmonic Ag nanocrystals were in situ decorated on 3D (BiO)2CO3 hierarchical microspheres for enhanced visible light photocatalysis and photocurrent generation by a one-pot in situ hydrothermal method.
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A novel route for synthesis of UV-resistant hydrophobic titania-containing silica aerogels by using potassium titanate as precursor

9 June, 2014 - 10:17

Dalton Trans., 2014, 43,9456-9467
DOI: 10.1039/C3DT53389A, PaperWei Wei, Xiaomeng Lu, Deli Jiang, Zaoxue Yan, Min Chen, Jimin Xie
A simple and one-pot sol-gel method with ion-exchange reaction is employed in the controllable synthesis of titania-containing silica aerogels, which exhibit efficient photocatalytic degradation of Rhodamine B.
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Scandium versus yttrium{amino-alkoxy-bis(phenolate)} complexes for the stereoselective ring-opening polymerization of racemic lactide and [small beta]-butyrolactone

9 June, 2014 - 10:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01206B, PaperYulia Chapurina, Joice Klitzke, Osvaldo de L. Casagrande Jr., Mouhamad Awada, Vincent Dorcet, Evgueni Kirillov, Jean-Francois Carpentier
5-Coordinate, THF-free scandium complexes are less active but provide a better control than their 6-coordinate, THF-coordinated analogous yttrium complexes for the heteroselective ring-opening polymerization of rac-lactide.
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New supramolecular assemblies in heterobimetallic chemistry: synthesis of a homologous series of unsolvated alkali-metal zincates

9 June, 2014 - 10:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01131G, PaperDavid R. Armstrong, Helena S. Emerson, Alberto Hernan-Gomez, Alan R. Kennedy, Eva Hevia
Exhibiting unprecedented supramolecular assemblies, made up exclusively of metal-carbon interactions, the structures of a homologous series of solvent-free alkali-metal zincates have been uncovered.
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Synthesis and electrochemistry of [small beta]-pyrrole nitro-substituted cobalt(II) porphyrins. The effect of the NO2 group on redox potentials, the electron transfer mechanism and catalytic reduction of molecular oxygen in acidic media

9 June, 2014 - 10:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01072H, PaperBin Sun, Zhongping Ou, Shuibo Yang, Deying Meng, Guifen Lu, Yuanyuan Fang, Karl M. Kadish
Four cobalt porphyrins were synthesized and characterized as to their electrochemical, spectroelectrochemical and electrocatalytic properties.
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Investigation on spin-flip reaction of Re + CH3CN by relativistic density functional theory

9 June, 2014 - 10:17

Dalton Trans., 2014, 43,9508-9517
DOI: 10.1039/C4DT00193A, PaperYi Xiao, Wen-Xin Ji, Wei-Xu, Xian-Yang Chen, Shu-Guang Wang
The minimal energy reaction pathway of Re + CH3CN has been investigated. The minimal energy crossing point is determined with the help of DFT fractional occupation-number (FON) approach.
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A spin-crossover complex based on a 2,6-bis(pyrazol-1-yl)pyridine (1-bpp) ligand functionalized with a carboxylate group

9 June, 2014 - 10:17

Dalton Trans., 2014, 43,9406-9409
DOI: 10.1039/C4DT00327F, CommunicationAlexandre Abherve, Miguel Clemente-Leon, Eugenio Coronado, Carlos J. Gomez-Garcia, Maurici Lopez-Jorda
[Fe(bppCOOH)2](ClO4)2 shows an abrupt spin transition (T1/2 = 380 K, TLIESST = 60 K) due to a hydrogen-bonded linear network of complexes.
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The V-shaped polar molecules encapsulated into Cs (10528)-C72: stability and nonlinear optical response

9 June, 2014 - 10:17

Dalton Trans., 2014, 43,9655-9660
DOI: 10.1039/C3DT53329H, PaperLi-Jie Wang, Rong-Lin Zhong, Shi-Ling Sun, Hong-Liang Xu, Xiu-Mei Pan, Zhong-Min Su
The structures, stability and nonlinear optical properties of the encapsulated fullerenes M2N@C72 (M = Sc or Y, N = S or O) and the pristine cage Cs-C72 (10528) were investigated.
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Synthesis, structure and reactivity of [o-(2,6-diisopropylphenyliminomethinyl)phenyl]selenenyl selenocyanate (RSeSeCN) and related derivatives

9 June, 2014 - 10:17

Dalton Trans., 2014, 43,9431-9437
DOI: 10.1039/C4DT00157E, PaperPrakul Rakesh, Harkesh B. Singh, Jerry P. Jasinski, James A. Golen
The synthesis, structure and reactivity of stable selenenyl selenocyanates having a strong Se-Se bond are reported.
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Multicolor tunable luminescence and paramagnetic properties of NaGdF4:Tb3+/Sm3+ multifunctional nanomaterials

7 June, 2014 - 09:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT00158C, PaperHongxia Guan, Guixia Liu, Jinxian Wang, Xiangting Dong, Wensheng Yu
The photoluminescence emission color tones of NaGdF4:Tb3+/Sm3+ nanomaterials change from green to yellow, including white, via adjusting the excitation wavelengths. Simultaneously, the magnetization of the samples are close to the values reported for nanoparticles used for common bioseparations.
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Controlled translocation of palladium(II) within a 22 ring atom macrocyclic ligand

3 June, 2014 - 08:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT00765D, PaperMichael G. Burgess, M. Naveed Zafar, Stephen T. Horner, George R. Clark, L. James Wright
Palladium can be directed to coordinate to the "tail" region of the macrocycle H4L to give 3b. Translocation of the palladium from the tail coordination pocket to the head coordination pocket occurs on treatment with amines such as n-BuNH2 to give 4.
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Amorphous Fe2+-rich FeOx loaded in mesoporous silica as a highly efficient heterogeneous Fenton catalyst

3 June, 2014 - 08:54

Dalton Trans., 2014, 43,9234-9241
DOI: 10.1039/C4DT00105B, PaperMin Wang, Zhu Shu, Lingxia Zhang, Xiangqian Fan, Guiju Tao, Yongxia Wang, Lisong Chen, Meiying Wu, Jianlin Shi
High dispersion of a large amount of Fe2+-rich FeOx and unblocked pore channels of catalysts obtained by physical-vapor-infiltration facilitate the Fenton reaction.
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Sulfur K-edge X-ray absorption spectroscopy and time-dependent density functional theory of arsenic dithiocarbamates

3 June, 2014 - 08:54

Dalton Trans., 2014, 43,9189-9201
DOI: 10.1039/C4DT00078A, PaperCourtney M. Donahue, Juan S. Lezama Pacheco, Jason M. Keith, Scott R. Daly
Complimentary analysis of As-S bonding in the presence of different S environments.
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Three H2O2 molecules are involved in the "Fenton-like" reaction between Co(H2O)62+ and H2O2

3 June, 2014 - 08:54

Dalton Trans., 2014, 43,9111-9115
DOI: 10.1039/C4DT00401A, PaperAriela Burg, Inna Shusterman, Haya Kornweitz, Dan Meyerstein
Our results point out that the "Fenton like" reaction for some "low valent" transition metal complexes is considerably more complex than usually assumed and involves more than one H2O2 molecule.
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Crown ether adducts of light alkali metal triphenylsilyls: synthesis, structure and hydrosilylation catalysis

3 June, 2014 - 08:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT00916A, PaperValeri Leich, Kevin Lamberts, Thomas P. Spaniol, Jun Okuda
Alkali metal triphenylsilyls [Li(12-crown-4)SiPh3][middle dot](thf)0.5, [Na(15-crown-5)SiPh3][middle dot](thf)0.5 and [K(18-crown-6)SiPh3(thf)] were synthesized using 1,1,1-trimethyl-2,2,2-triphenyldisilane and shown to catalyze the regioselective hydrosilylation of 1,1-diphenylethene.
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Structural and photophysical properties of rare-earth complexes encapsulated into surface modified mesoporous silica nanoparticles

3 June, 2014 - 08:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT00760C, PaperChandrashekhar Malba, Umayal P. Sudhakaran, Silvia Borsacchi, Marco Geppi, Francesco Enrichi, Marta Maria Natile, Lidia Armelao, Tiziano Finotto, Riccardo Marin, Pietro Riello, Alvise Benedetti
Complexes of [Eu(dbm)3phen] encapsulated into functionalized MSN were studied by a variety of techniques.
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Enhanced BaZrO3 mechanosynthesis by the use of metastable ZrO2 precursors

3 June, 2014 - 08:54

Dalton Trans., 2014, 43,9324-9333
DOI: 10.1039/C4DT00683F, PaperZ. Sherafat, I. Antunes, C. Almeida, J. R. Frade, M. H. Paydar, G. C. Mather, D. P. Fagg
Enhanced mechanochemical preparation of BaZrO3 can be achieved upon milling mixtures of barium peroxide with metastable tetragonal ZrO2 precursors.
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Coordination chemistry of sterically encumbered pyrrolyl ligands to chromium(II): mono(pyrrolyl)chromium and diazachromocene formation

3 June, 2014 - 08:54

Dalton Trans., 2014, 43,9052-9060
DOI: 10.1039/C4DT00533C, PaperMarkus Kreye, Constantin G. Daniliuc, Matthias Freytag, Peter G. Jones, Marc D. Walter
One additional tBu-group in the pyrrolyl ligand decides on [small kappa]N- vs. [small eta]5-coordination in mono(pyrrolyl)chromium(II) complexes.
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Partially fluorinated oxo-alkoxide tungsten(VI) complexes as precursors for deposition of WOx nanomaterials

3 June, 2014 - 08:54

Dalton Trans., 2014, 43,9226-9233
DOI: 10.1039/C4DT00407H, PaperRichard O. Bonsu, Hankook Kim, Christopher O'Donohue, Roman Y. Korotkov, K. Randall McClain, Khalil A. Abboud, Ashley A. Ellsworth, Amy V. Walker, Timothy J. Anderson, Lisa McElwee-White
Volatile partially fluorinated tungsten(VI) oxo-alkoxides yield tungsten oxide nanorods upon chemical vapour deposition.
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