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Rational design of a room temperature molecular spin switch. The light-driven coordination induced spin state switch (LD-CISSS) approach

28-10-2014 | M. Dommaschk; C. Schütt; S. Venkataramani; U. Jana; C. Näther; F. D. Sönnichsen; R. Herges, Dalton Transactions, 2014

Extensive use of quantum chemical calculations has been made to rationally design a molecule whose spin state can be switched reversibly using light of two different wavelengths at room temperature in solution. Spin change is induced by changing the coordination number of a nickel complex. The ...


Hydrogen-bond relaxation dynamics: Resolving mysteries of water ice

26-10-2014 | Author(s): Yongli Huang , Xi Zhang , Zengsheng Ma , Yichun Zhou , Weitao Zheng , Ji Zhou , Chang Q. Sun, Coordination Chemistry Reviews, 2014

Publication date: Available online 23 October 2014 Source:Coordination Chemistry Reviews Author(s): Yongli Huang , Xi Zhang , Zengsheng Ma , Yichun Zhou , Weitao Zheng , Ji Zhou , Chang Q. Sun We present recent progress in understanding the anomalous behavior of water ice under ...


Direct Arylation Polycondensation of Bithiazole Derivatives with Various Acceptors

24-10-2014 | Masahiro Kuramochi; Junpei Kuwabara; Wei Lu; Takaki Kanbara, Macromolecules, 2014

Novel π-conjugated polymers with a bithiazole unit and various acceptor units were synthesized by polycondensation via Pd-catalyzed direct arylation. The results of polycondensation reactions depend on chalcogen elements in the monomers. The presence of a Se atom inhibited polymerization, ...


ChemInform Abstract: An Efficient Palladium N‐Heterocyclic Carbene Catalyst Allowing the Suzuki—Miyaura Cross‐Coupling of Aryl Chlorides and Arylboronic Acids at Room Temperature in Aqueous Solution.

23-10-2014 | Fatemeh Rajabi, Werner R. Thiel, ChemInform, 2014

Abstract This method gives the coupling products in high yields even at low catalyst loadings.


Local Supersaturation Dictated Branching and Faceting of Submicrometer PbS Particles with Cubic Growth Habit

23-10-2014 | Mingzhu Liu; Mei Leng; Dan Liu; Fanglin Chen; Chengyu Li; Cheng Wang, Inorganic Chemistry, 2014

Hierarchical cubelike submicrometer PbS particles consisting of truncated octahedrons, cuboctahedrons, and cubes were prepared in ethylene glycol solution under favorable high mole ratio of thiourea (Tu) to Pb(AC)2 (RS/Pb) via a pumping process. A qualitative analysis based on the classical ...


A Discrete Amphiphilic Organoplatinum(II) Metallacycle with Tunable Lower Critical Solution Temperature Behavior

23-10-2014 | Peifa Wei; Timothy R. Cook; Xuzhou Yan; Feihe Huang; Peter J. Stang, Journal of the American Chemical Society, 2014

Oligo(ethylene glycol) (OEG)-decorated supramolecular assemblies are distinguished by their neutral character and macroscopic temperature-sensitive phase transition behavior. OEG functionalization is an emerging strategy to obtain thermoresponsive macrocyclic amphiphiles, although known methods ...


Experimental Measurement and Thermodynamic Modeling of Hydrate Dissociation Conditions for the Argon + TBAB + Water System

23-10-2014 | Saeedeh Babaee; Hamed Hashemi; Amir H. Mohammadi; Paramespri Naidoo; Deresh Ramjugernath, Journal of Chemical & Engineering Data, 2014

Gas hydrate (clathrate hydrate) dissociation data at low to moderate pressures are necessary for practical applications, e.g., for gas separation. However, it is often known or recognized that the separation conditions encountered exist at high pressures and low temperatures. One solution to this ...


Phase Stability of Hydrates of Methane in Tetrahydrofuran Aqueous Solution and the Effect of Salt

23-10-2014 | Deepjyoti Mech; Jitendra S. Sangwai, Journal of Chemical & Engineering Data, 2014

Phase equilibrium data are generated for clathrate hydrates of methane in THF aqueous solution for (0.040, 0.016, 0.010, and 0.005) mass fraction and with NaCl ((0.03, 0.05, and 0.10) mass fraction) in combination with THF ((0.010 and 0.005) mass fraction) for the methane hydrate system to study ...


Hydrate Dissociation Condition Measurement of CO2-Rich Mixed Gas in the Presence of Methanol/Ethylene Glycol and Mixed Methanol/Ethylene Glycol + Electrolyte Aqueous Solution

22-10-2014 | Qazi Nasir; K. K. Lau; Bhajan Lal; Khalik M. Sabil, Journal of Chemical & Engineering Data, 2014

In this work, the hydrate dissociation condition for carbon dioxide rich gas mixture in the presence of methanol, methanol + sodium chloride or calcium chloride, and ethylene glycol, ethylene glycol + sodium chloride or calcium chloride aqueous solution, were measured and reported. The ...


Amphoteric hydrolyzed Poly(acrylamide/dimethyl diallyl ammonium chloride) as a filtration reducer under high temperatures and high salinities

21-10-2014 | Ling Lin, Pingya Luo, Journal of Applied Polymer Science, 2014

ABSTRACT Poly(acrylamide/dimethyl diallyl ammonium chloride) (PAD) samples were synthesized via solution polymerization. Hydrolyzed poly(acrylamide/dimethyl diallyl ammonium chloride) (HPAD) was prepared with NaOH as a hydrolyzation agent. Both PAD and HPAD were characterized by IR and NMR ...


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