Royal Society of Chemistry

Efficient synthesis of carbazolespirooxindole skeletons via asymmetric Diels-Alder reaction of 3-vinylindoles and methyleneindolinones

Chem. Commun. - 14 July, 2014 - 13:17

Chem. Commun., 2014, 50,8794-8796
DOI: 10.1039/C4CC03135K, CommunicationHaifeng Zheng, Peng He, Yangbin Liu, Yulong Zhang, Xiaohua Liu, Lili Lin, Xiaoming Feng
A mild, highly efficient asymmetric Diels-Alder reaction, catalyzed by chiral N,N[prime or minute]-dioxide-Ni(II) complexes, has been achieved for the synthesis of chiral carbazolespirooxindole derivatives. A wide variety of substrates were readily tolerated, generating exclusively the corresponding exo-products.
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Enantioselective phospha-Michael addition of diarylphosphines to [small beta],[gamma]-unsaturated [small alpha]-ketoesters and amides

Chem. Commun. - 14 July, 2014 - 13:17

Chem. Commun., 2014, 50,8768-8770
DOI: 10.1039/C4CC01610F, CommunicationRenta Jonathan Chew, Kai Yuan Teo, Yinhua Huang, Bin-Bin Li, Yongxin Li, Sumod A. Pullarkat, Pak-Hing Leung
A chiral palladacycle catalyzed hydrophosphination of [small beta],[gamma]-unsaturated [small alpha]-ketoesters and amides has been developed; with up to 99% yield and 90% ee.
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New potassium-sodium niobate material system: a giant-d33 and high-TC lead-free piezoelectric

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11759-11766
DOI: 10.1039/C4DT01293C, PaperTing Zheng, Jiagang Wu, Xiaojing Cheng, Xiaopeng Wang, Binyu Zhang, Dingquan Xiao, Jianguo Zhu, Xiaojie Lou, Xiangjian Wang
A giant d33 ([similar]400 pC/N) and a high TC ([similar]292 [degree]C) have been simultaneously achieved in the (1 - x)K0.40Na0.60Nb0.965Sb0.035O3-xBi0.5Li0.5ZrO3 lead-free ceramics by forming the R-T phase boundary.
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Electronic excited states of chromium and vanadium bisarene complexes revisited: interpretation of the absorption spectra on the basis of TD DFT calculations

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT01481B, PaperSergey Ketkov, Nikolai Isachenkov, Elena Rychagova, Wen-Bih Tzeng
The influence of the ([small eta]6-arene)2M (M = Cr, V, Cr+) composition on parameters of intravalency and Rydberg transitions is explained on the basis of time-dependent DFT.
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Tuning of photocatalytic activity by creating a tridentate coordination sphere for palladium

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11676-11686
DOI: 10.1039/C4DT01034E, PaperM. G. Pfeffer, L. Zedler, S. Kupfer, M. Paul, M. Schwalbe, K. Peuntinger, D. M. Guldi, J. Guthmuller, J. Popp, S. Grafe, B. Dietzek, S. Rau
Intramolecular ruthenium palladium hydrogen evolving photocatalyst containing a novel coordination pocket for the catalytic centre.
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A-site size effect in a family of unfilled ferroelectric tetragonal tungsten bronzes: Ba4R0.67Nb10O30 (R = La, Nd, Sm, Gd, Dy and Y)

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11687-11695
DOI: 10.1039/C4DT00126E, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Jonathan Gardner, Finlay D. Morrison
The structure of a family of ferroelectric unfilled tetragonal tungsten bronze oxides can be approximated to be metrically tetragonal allowing a simple correlation of tetragonality with Curie temperature.
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Inorganic/organic small molecular semiconductor self-assembly to functional core-shell nanoarchitectures for ultrasensitive chemiresistors to aniline vapor

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11542-11547
DOI: 10.1039/C4DT00962B, PaperKe Wang, Hui Yang, Xuemin Qian, Zheng Xue, Yongjun Li, Huibiao Liu, Yuliang Li
Novel inorganic/organic core-shell nanoparticles for ultrasensitive chemiresistors to aniline have been prepared by a new method.
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Homogeneous liquid-liquid extraction of neodymium(III) by choline hexafluoroacetylacetonate in the ionic liquid choline bis(trifluoromethylsulfonyl)imide

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11566-11578
DOI: 10.1039/C4DT01340A, PaperBieke Onghena, Jeroen Jacobs, Luc Van Meervelt, Koen Binnemans
Choline hexafluoroacetylacetonate diluted in the ionic liquid choline bis(trifluoromethylsulphonyl)imide has been used as an extractant for the homogeneous liquid-liquid extraction of neodymium(III) ions.
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Ferrocene analogues of sandwich M(CrB6H6)2: a theoretical investigation

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11739-11744
DOI: 10.1039/C4DT01106F, PaperLifen Li, Chang Xu, Baokang Jin, Longjiu Cheng
Ferrocene analogues of a new sandwich compound Cr(CrB6H6)2 following the 18-electron principle: the spd-[small pi] interaction.
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Ligand chain length conveys thermochromism

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11624-11636
DOI: 10.1039/C4DT00769G, PaperMainak Ganguly, Sudipa Panigrahi, K. R. S. Chandrakumar, Anup Kumar Sasmal, Anjali Pal, Tarasankar Pal
Thermochromism from non-ionic copper compounds obtained from long chain primary amines and fatty acid.
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Hydrosilylation of aldehydes and ketones catalyzed by hydrido iron complexes bearing imine ligands

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11716-11722
DOI: 10.1039/C4DT00944D, PaperZhenyu Zuo, Hongjian Sun, Lin Wang, Xiaoyan Li
Four hydrido iron complexes (1-4) were prepared and used as catalysts in the hydrosilylation of carbonyl compounds.
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Synthesis, protonation equilibrium and peculiar thermal decomposition behavior of cyclo-tri-[small mu ]-imidotetraphosphate

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11611-11623
DOI: 10.1039/C4DT00601A, PaperHideshi Maki, Kazuomi Ryousi, Hiroyuki Nariai, Minoru Mizuhata
The synthesis and isolation of the sodium salt of cyclo-tri-[small mu ]-imidotetraphosphate, i.e. Na4cP4O9(NH)3[middle dot]H2O, were achieved by the hydrolysis of Na4cP4O8(NH)4[middle dot]2H2O under very weak acidic conditions, i.e. using 0.2 mol L-1 propionic acid and the pH-controlled recrystallization procedure.
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Ce3+ sensitized GdPO4:Tb3+ with iron oxide nanoparticles: a potential biphasic system for cancer theranostics

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11728-11738
DOI: 10.1039/C4DT00792A, PaperNiroj Kumar Sahu, Naorem Shanta Singh, Lina Pradhan, Dhirendra Bahadur
We report a biphasic system (BPS) consisting of PEGylated Tb3+-doped GdPO4 nanorice sensitized with Ce3+ (PEG-NRs) and glutamic acid coated iron oxide nanoparticles (IONPs) with multifunctional capabilities.
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Synthesis, characterization and properties of a family of lead(II)-organic frameworks based on a multi-functional ligand 2-amino-4-sulfobenzoic acid exhibiting auxiliary ligand-dependent dehydration-rehydration behaviours

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11597-11610
DOI: 10.1039/C4DT00659C, PaperKou-Lin Zhang, Zhao-Yin Zhong, Lei Zhang, Chu-Yue Jing, Luke M. Daniels, Richard I. Walton
A simplified representation of the architectures and auxiliary ligand-dependent dehydration-rehydration behaviours of 1-4.
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Preparation and fluorescence properties of color tunable phosphors Ca3Y2(Si3O9)2:Dy3+

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11474-11477
DOI: 10.1039/C4DT00794H, CommunicationZhiping Yang, Hongyan Dong, Xiaoshuang Liang, Chuncai Hou, Lipeng Liu, Fachun Lu
A novel reddish-orange phosphor, Ca3Y2-2x(Si3O9)2:2xDy3+, was synthesized via conventional solid-state reaction.
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Water is a key factor to alter the structure and electrochemical properties of carboxylate-bridged dimanganese(II) complexes

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11465-11469
DOI: 10.1039/C4DT00520A, CommunicationDharmalingam Sivanesan, Sethuraman Kannan, Thangaian Daniel Thangadurai, Kwang-Deog Jung, Sungho Yoon
The three manganese complexes with the {Mn2([small mu ]-O2CR)}3+, {Mn2([small mu ]-OH2)2([small mu ]-O2CR)}3+, and {Mn2(OH6)2(O2CR)}3+ motifs are in dynamic equilibrium, displaying significantly different electrochemical properties ranging from 0.52 V to 1.19 V vs. Fc/Fc+.
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Facile synthesis of biocompatible cysteine-coated CuS nanoparticles with high photothermal conversion efficiency for cancer therapy

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11709-11715
DOI: 10.1039/C4DT00424H, PaperXijian Liu, Bo Li, Fanfan Fu, Kaibing Xu, Rujia Zou, Qian Wang, Bingjie Zhang, Zhigang Chen, Junqing Hu
The cysteine-coated CuS nanoparticles with the photothermal conversion efficiency of 38.0% were synthesized and the tumor growth in vivo could be efficiently inhibited due to their photothermal effects.
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Strong Lewis acid air-stable cationic titanocene perfluoroalkyl(aryl)sulfonate complexes as highly efficient and recyclable catalysts for C-C bond forming reactions

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11696-11708
DOI: 10.1039/C4DT00549J, PaperNingbo Li, Jinying Wang, Xiaohong Zhang, Renhua Qiu, Xie Wang, Jinyang Chen, Shuang-Feng Yin, Xinhua Xu
A series of titanocene perfluoroalkyl(aryl)sulfonate complexes were synthesized, characterized, and applied in various C-C bond forming reactions.
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Ligand-based photooxidations of dithiomaltolato complexes of Ru(II) and Zn(II): photolytic CH activation and evidence of singlet oxygen generation and quenching

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11548-11556
DOI: 10.1039/C4DT00961D, PaperBritain Bruner, Malin Backlund Walker, Mukunda M. Ghimire, Dong Zhang, Matthias Selke, Kevin K. Klausmeyer, Mohammad A. Omary, Patrick J. Farmer
Unusual light induced C-H oxidation initiated by excitation into Ru-bound dithiomaltol ligand absorption.
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Ion exchange and intercalation properties of layered double hydroxides towards halide anions

Dalton Transactions - 13 July, 2014 - 18:54

Dalton Trans., 2014, 43,11587-11596
DOI: 10.1039/C4DT00620H, PaperUmberto Costantino, Riccardo Vivani, Maria Bastianini, Ferdinando Costantino, Morena Nocchetti
The selectivity towards halides and the mechanism of ion exchange of ZnAl-LDH in the chloride form (X- = F-, Br-, I-) were investigated using ion exchange isotherms of Cl-/X-.
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