Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Gui-Qing Huang"'
Publikováno v:
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials. 38(2)
To study the chemical constituents of Phyllanthus emblica.The chemical constituents were isolated and purified by silica gel, polyamide and Sephadex LH-20 chromatography. Their structures were elucidated by physicochemical proper- ties and spectral a
Publikováno v:
Heteroatom Chemistry. 11:303-307
Publikováno v:
Polyhedron. 13:1587-1591
Crystals of the formula K2[VO(O2)NTA] with NTA = nitrilotriacetate have been prepared and characterized by IR and single-crystal X-ray diffraction methods. The structure of the anion of the complex shows that the vanadium atom has a distorted pentago
Publikováno v:
ChemInform. 24
Publikováno v:
ChemInform. 24
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 49:1446-1448
Publikováno v:
Polyhedron. 12:1483-1485
The structure of (Et 4 N) 3 H 6 [AsV 12 O 40 (VO) 2 ]·20H 2 O has been determined by single-crystal X-ray diffraction analysis. In the anion the central AsO 4 tetrahedron and 12VO 6 octahedra form the usual Keggin structure (α-isomer) and the remai
Publikováno v:
ChemInform. 31
Publikováno v:
Polyhedron. 12:2067-2068
The crystal structure of Na6[H6Mo57Fe6O189(NO)6(H2O)18]·91H2O has been determined and shown to consist of three 17-molybdate subunits connected by six FeO6 octahedra and three {Mo2O9} groups.
Publikováno v:
J. Chem. Soc., Chem. Commun.. :37-38
Reaction of sodium molybdate (Na2MoO4·2H2O) and ammonium metavanadate (NH4VO3) with hydroxylamine hydrochloride results in the formation of the title compound, which consists of three 19-molybdate subunits being connected by six VO6 octahedra, and s