نتایج جستجو برای: cyanates

تعداد نتایج: 554  

2010
Lin Liu

In the mononuclear title complex, [Ni(C(14)H(19)N(2)O(3))(NCS)], the nickel(II) atom is four-coordinated in a square-planar geometry by the O and N atoms of the tridentate Schiff base ligand and by the N atom of a thio-cyanate ligand. The crystal structure is stabilized by inter-molecular C-H⋯S and C-H⋯O hydrogen bonds, forming a three-dimensional network.

2011
Susanne Wöhlert Inke Jess Christian Näther

In the crystal structure of the title compound, {(C(12)H(14)N(2))[Fe(NCS)(4)]}(n), the iron(II) cation is coordinated by four N-bonded and two S-bonded thio-cyanate anions in a distorted octa-hedral coordination mode. The asymmetric unit consists of half an iron(II) cation and half a protonated (E)-4,4'-(ethane-1,2-di-yl)dipyridinium dication, each located on a centre of inversion. In addition,...

2010
Yu Zhu

In the title mononuclear copper(II) complex, [Cu(C(12)H(17)N(2)O(2))(NCS)], the Cu(II) atom is four-coordinated by an NNO-donor set of the tridentate Schiff base ligand and the N atom of a terminal thio-cyanate ligand in a slightly distorted square-planar geometry.

2008
Ming-Hua Yang

In the title mononuclear complex, [Ni(NCS)(2)(C(12)H(8)N(4)S)(2)(H(2)O)(2)]·2H(2)O, the Ni(II) atom is located on an inversion center and is octa-hedrally coordinated by four N atoms from two 2,5-di-4-pyridyl-1,3,4-thia-diazole (bpt) ligands and two thio-cyanate mol-ecules forming the equatorial plane; the axial positions are occupied by two O atoms of coordinated water mol-ecules. O-H⋯O, O-H⋯N...

Journal: :The Journal of biological chemistry 1948
R J FITZGERALD

The reversal of the bacteriostatic action of streptomycin for certain mycobacteria as well as Escherichia coli by urea has been the subject of a preliminary note by Fitzgerald and Bernheim (1). At that time the possibility was considered that urea was being directly assimilated by the organisms. Subsequent work to elucidate the nature of this phenomenon has revealed that the agent which causes ...

2009
Hong Li Long Miao Xie

The title compound, [Cd(NCS)(2)(C(6)H(5)N(5))(2)](n), is a coordination polymer with the Cd(II) centre located on a twofold rotation axis. The Cd(II) centre assumes a distorted octa-hedral geometry. The thio-cyanate anions function as bridging ligands between the Cd(II) centres, leading to a chain-like arrangement expanding along [001].

2012
Susanne Wöhlert Christian Näther

The asymmetric unit of the title compound, [Co(NCS)(2)(C(13)H(14)N(2))(CH(3)OH)(2)], consists of one cobalt(II) cation located on a center of inversion, one half of a 1,3-bis-(pyridin-4-yl)propane ligand located on a twofold rotation axis, as well as one thio-cyanate anion and one methanol mol-ecule in general positions. The cobalt(II) cation is coordinated by two terminal N-bonded thio-cyanate...

2012
Xiu-Ling Feng Yu-Ping Zhang

In the title complex, [Co(NCS)(2)(C(8)H(9)NO(2))(4)], the Co(II) atom is six-coordinated by four N atoms from four ethyl pyridine-4-carboxyl-ate ligands in the equatorial plane and two N atoms of thio-cyanate ligands in the axial positions, showing a slightly distorted octa-hedral geometry. The structure exhibits disorder in one of the ethyl chains, which was refined using a two-site model with...

2008
Chunyuan Li Weijia Ding Changlun Shao

In the title compound, [Cu(NCS)(2)(C(6)H(6)N(2)O)(2)(H(2)O)], the Cu atom adopts a square-based pyramidal CuN(4)O coordination, with the water O atom in the apical position. The pairs of N-bonded nicotinamide ligands and thio-cyanate anions in the basal plane are in a trans configuration. In the crystal structure, the mol-ecules are connected into sheets by N-H⋯O and O-H⋯O hydrogen bonds.

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