نتایج جستجو برای: tetra n

تعداد نتایج: 981770  

2012
K. LINEK J. ALFÖLDI T. STACH V. PÄTOPRSTÝ

N-Acetylation of (2,3,4,6-tetra-O-acetyl-a-D-glucopyranosyl) (2,3,4,6-tetra-0-acetyl-/?-D-glucopyranosyl)amine or bis(2,3,4,6-tetra-0-acetyl-/3-D-glucopyranosyl)amine afforded N-acetyl-bis(2,3, 4,6-tetra-0-acetyl-/3-D-glucopyranosyl)amine; deacetylation of the latter gave Af-acetyl-di-/3-Dglucopyranosylamine. Similarly, TV-acetylation of bis(2,3,4-tri-0-acetyl-/3-L-rhamnopyranosyl)amine led to ...

2014
Hua-Yong Ouyang Yi-Qi Chang Lu Zhao

The asymmetric unit of the title compound, 2C15H16N6O3·C3H7NO·H2O, contains two independent ethyl 6-methyl-2-oxo-4-[4-(1H-tetra-zol-5-yl)phen-yl]-1,2,3,4-tetra-hydro-pyrim-id-ine-5-carboxyl-ate mol-ecules, in which the dihedral angles between the tetra-zole and benzene rings are 20.54 (12) and 12.13 (12)°. An intra-molecular C-H⋯O hydrogen bond occurs in each mol-ecule. In the crystal, N-H⋯O, N...

2008
Shuang-Ming Meng Yue-Qin Fan Yong Guo

In the title compound, [Ni(C(8)H(4)O(4))(C(36)H(44)N(4)O(4))](n), the Ni(II) atom is coordinated in a distorted octa-hedral geometry by the four N atoms of the 1,12,15,26-tetra-aza-5,8,19,22-tetra-oxa-3,4:9,10:17,18:23,24-tetra-benzocyclo-octa-cosane ligand and two O atoms from the terephthalate dianions. The Ni(II) atoms, which lie on inversion centres, are linked via terephthalate ligands to ...

2010
Shi-Jie Li Hao Wang Wen-Dong Song Shi-Wei Hu Pei-Wen Qin

In the title complex, [Ag(C(3)H(3)N(4)O(2))](n), the Ag(I) atom is four-coordinated in a slightly distorted tetra-hedral coordination geometry by two N atoms from two tetra-zole-1-acetate (tza) ligands and two O atoms from the other two tza ligands. The tza ligand bridges two Ag atoms through the carboxyl-ate O atoms and simultaneously binds to the other two Ag atoms through the tetra-zole N at...

2012
Elizaveta A. Trush Oleg V. Shishkin Victor A. Trush Irina S. Konovalova Tetyana Yu. Sliva

The title compound, C(4)H(12)N(+)·C(8)H(11)NO(5)PS(-), was obtained from tetra-methyl-ammonium hydroxide and dimeth-yl(phenyl-sulfon-yl)amido-phosphate. The tetra-methyl-ammonium cation has a slightly distorted tetra-hedral configuration and the N-C bond lengths lie in the range 1.457 (3)-1.492 (3) Å. In the crystal, no classical hydrogen bonds are observed between the cation and the anion.

2010
Roland Selig Dieter Schollmeyer Joachim Schlosser Wolfgang Albrecht Stefan Laufer

The crystal structure of the title compound, C(15)H(11)FN(6)S, forms a three-dimensional network stabilized by π-π inter-actions between the imidazole core and the tetra-zole ring of the tetra-zolopyridine-unit; the centroid-centroid distance is 3.627 (1) Å. The crystal structure also displays bifurcated N-H⋯(N,N) hydrogen bonding and C-H⋯F inter-actions. The former involve the NH H atom of the...

2010
Yi-Qiang Mu Jun Zhao Cai Li

The title compound, [Zn(C(6)H(4)N(5))(2)(H(2)O)(4)]·4H(2)O, was synthesized by the hydro-thermal reaction of Zn(CH(3)COO)(2)·2H(2)O with 3-(2H-tetra-zol-5-yl)pyridine. The Zn(II) ion is located on an inversion center and is coordinated by two pyridine N atoms from two 5-(3-pyrid-yl)tetra-zolide ligands and four coordinated water mol-ecules in a slightly distorted octa-hedral geometry. The dihed...

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

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