22.05.2013 | Wendong Chen; Keyong Hou; Xingchuang Xiong; You Jiang; Wuduo Zhao; Lei Hua; Ping Chen; Yuanyuan Xie; Zhenxin Wang; H ..., Analyst, 2013

A platform consisting of a halogen lamp, a low temperature plasma (LTP) probe, and a miniature rectilinear ion trap mass spectrometer (RIT-MS) has been constructed and evaluated to detect the organic and inorganic explosives on solid surfaces. This platform features two attractive ...

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22.05.2013 | Han Zhang; Zheng Duan; Xiaonan Zhang; Chao Liu; Junfeng Zhang; Jijun Zhao, Physical Chemistry Chemical Physics, 2013

We present a molecular dynamic simulation on the mechanical strength and fracture behavior of graphene grain boundaries (GBs). The intrinsic strength, critical failure strain, and failure mechanism of graphene GBs mainly rely on the temperature and inflection angle, whereas the Young’s ...

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22.05.2013 | Xu-Jia Hong; Ming-Fang Wang; Hong-Guang Jin; Qingguang Zhan; Yi-Ting Liu; Hong-Yang Jia; Xiang Liu; Prof. Yue-Peng Cai, CrystEngComm, 2013

The temperature-driven single-crystal to single-crystal transformation of a new erbium(III) coordination polymer with ligand benzimidazole-5,6-dicarboxylic acid (H2bidc), {[Er(bidc)(ClO4)((H2O)3]·3H2O}n (1) to [Er(bidc)(ClO4)]n (2), has been reported and structures of 1 and 2 were determined ...

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22.05.2013 | Ira Kataeva; Marcus B Foston; Sung-Jae Yang; Sivakumar Pattathil; Ajaya K Biswal; Farris L Poole; Mirko Basen; Amand ..., Energy & Environmental Science, 2013

The three major components of plant biomass, cellulose, hemicellulose and lignin, are highly recalcitrant and deconstruction involves thermal and chemical pretreatment. Microbial conversion is a possible solution, but few anaerobic microbes utilize both cellulose and hemicellulose and none ...

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22.05.2013 | Vitaliy A. Morozov, Physical Chemistry Chemical Physics, 2013

A statistical theory of temperature-induced spin-crossover-like transitions has been developed for spin chains with a few exchange clusters in a unit cell. Using static magnetic susceptibility measurements, a general expression for the effective magnetic moment μeff of exchange clusters is ...

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22.05.2013 | R H Morris; Demyan E Prokopchuk; Alan Lough; Alba Collado, Dalton Transactions, 2013

We report the synthesis of Ru(II) and Os(II) trans hydrido-hydroxo complexes by reacting the unsaturated amido complexes MH(NHCMe2CMe2NH2)(PPh3)2 (M = Ru, Os) with stoichiometric amounts of water. Proton exchange is rapid at room temperature between the amine/water/hydroxide moieties which ...

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22.05.2013 | Rafal Czerwieniec; Konrad Kowalski; Hartmut Yersin, Dalton Transactions, 2013

The rigid [Cu(dmp)(phanephos)]+ complex displays high luminescence quantum yield of 80 % at ambient temperature. In contrast to the long-lived phosphorescence of 240 μs below T < 120 K with a radiative rate of kr = 3•103 s-1, the ambient-temperature emission represents a thermally activated ...

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22.05.2013 | Ian W. M. Smith; Peter W. Barnes, Annual Reports: Section C, 2013

Rate constants for elementary gas-phase reactions were first measured reliably following the development of pulsed photolysis and flow methods in the 1960's. These techniques have continued to be employed as kinetics experiments have been performed at lower and lower temperatures. Sub-ambient ...

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22.05.2013 | Di Sun; Shuai Yuan; Hua Wang; Haifeng Lu; Shengyu Feng; Daofeng Sun, Chemical Communication, 2013

The luminescence thermochromism properties of two entangled copper(I)-iodide coordination polymers formulated [Cu4I4(dmimpr)2]n (1) and [Cu6I6(dimb)3]n (2) (dmimpr = 1,3-di(2-methyl-imidazol-1-yl)propane, dimb = 1,4-di(imidazol-1-yl)butane) are reported. Upon cooling by liquid nitrogen, their ...

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22.05.2013 | Xiuqin Cai; Ying Wu; Liya Wang; Ni Yan; Jing Liu; Xiaohua Fang; Yu Fang, Soft Matter, 2013

Two novel cholesteryl derivatives of calix[4]arene with l- or d-phenylalanine residues in the linkers (1 and 2, respectively) were designed and synthesized. The gelation behaviors of the compounds in 30 organic solvents were tested. It was demonstrated that 1 gels n-butanol and n-pentanol at ...

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