The title salt, [Ni(C3H2NS2)(C12H8N2)2]PF6·1.5C4H8O2, was the unexpected product on making an attempt to prepare an [Ni(2-mercapto-thia-zol-ate)(1,10-phenanthroline)]+ complex by reaction of [NiCl2(1,10-phen-an-throline)] with 2-mercapto-thia-zolate. In the resulting complex, the 2-mercapto-thia-zolate anion acts as a chelating ligand, which coordinates to the NiII ion with the thia-zolyl N and...

We purified an acid trehalase (EC 3.2.1.28, alpha,alpha'-trehalose glucohydrolase) from an acidophilic bacterium, Acidobacterium capsulatum. The enzyme was homogeneous based on polyacrylamide gel electrophoresis, and was composed of a single polypeptide chain with a molecular mass of 57 kDa. Maximum trehalase activity was observed at pH 2.5. The acid trehalase exhibited an apparent K(m) of 1.0 ...

Reaction of the deprotonated N-thiophosphorylated thiourea 2-PyNHC(S)NHP(S)(OiPr)2 (HL) with NiCl2 leads to the complex [Ni{2-PyNHC(S)NP(S)(OiPr)2}2] ([NiL2]) with unprecedented 1,5,7-N,N′,S-coordination of the ligand. Recrystallization of [NiL2] from a mixture of CH2Cl2–n-hexane or acetone–n-hexane leads to [Ni(L-1,5,7-N,N′,S)2]·CH2Cl2 and [Ni(L-1,5,7-N,N′,S)2], respectively. The latter comple...

A genetically modified (His6-tagged) form of the mitochondrial F1-ATPase (MW = 370 kDa) has been purified from the yeast Saccharomyces cerevisiae and crystallized in the presence of polyethelene glycol (PEG) 6000 as a precipitant, 1 mM NiCl2, 1 mM Mg AMP-PNP and 50 microM Mg ADP. X-ray diffraction data were obtained on three separate occasions using synchrotron radiation, with a progression in ...

Ni/Pd co-modified graphene hydrogen storage materials were successfully prepared by a solvothermal method using NiCl2·6H2O and Pd(OAc)2 reduced oxide (rGO). By adjusting the hydrothermal temperature, Pd–Ni is alloyed, size of obtained nanoparticles uniform. The electronic structure Pd was changed alloying, center D-band moved down, which promoted adsorption hydrogen. NiPd-rGO-180 sample, in 180...

Hydrocyanation reactions enable access to synthetically valuable nitriles from readily available alkene precursors. However, hydrocyanation using hydrogen cyanide (HCN) or similarly toxic reagents on laboratory scale can be particularly challenging due their hazardous nature. In addition, such processes typically require air- and temperature-sensitive Ni(0) precatalysts, further reducing the op...

Представлены результаты исследования адсорбционных свойств сшитых эпихлоргидрином хитозановых сфер. В ходе была разработана методика получения и сшивки сфер, а также магнитно-разделяемых композитов на их основе. Адсорбционная способность сфер исследована примере водных растворов NiCl2 K2Cr2O7 при варьировании концентрации ионов Ni2+ Cr2О7 2- . Было показано, что адсорбционное равновесие в случа...