X-ray-structural investigation of sesquiterpene esters of plants of the genus Ferula. II. Crystal and molecular structure of the humulane alcohol fexerol

1986 ◽  
Vol 22 (1) ◽  
pp. 39-42 ◽  
Author(s):  
M. K. Makhmudov ◽  
B. Tashkhodzhaev ◽  
G. V. Sagitdinova ◽  
A. I. Saidkhodzhaev ◽  
M. R. Yagudaev ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Structural Investigation ◽  
Crystal And Molecular Structure ◽  
X Ray

X-ray diffraction structural investigation of organic complexone ligands. XVII. Crystal and molecular structure of glycinedimethylphosphonic acid dihydrate

1991 ◽  
Vol 31 (5) ◽  
pp. 760-768 ◽  
Author(s):  
L. M. Shkol'nikova ◽  
A. A. Masyuk ◽  
F. F. Khizbullin ◽  
B. P. Strunin ◽  
S. S. Sotman ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Structural Investigation ◽  
Crystal And Molecular Structure ◽  
X Ray Diffraction ◽  
X Ray

X-ray structural investigation on alkaloids V. Crystal and molecular structure of sibiricine

1979 ◽  
Vol 14 (6) ◽  
pp. 640-645
Author(s):  
S. -M. Nasirov ◽  
I. A. Israilov ◽  
L. G. Kuz'mina ◽  
M. S. Yunusov ◽  
Yu. T. Struchkov ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Structural Investigation ◽  
Crystal And Molecular Structure ◽  
X Ray

X-ray diffraction structural investigation of organic complexone ligands. XVIII. Crystal and molecular structure of phosphonomethylglycine hemihydrochloride

1991 ◽  
Vol 31 (5) ◽  
pp. 768-773
Author(s):  
L. M. Shkol'nikova ◽  
A. A. Masyuk ◽  
F. F. Khizbullin ◽  
V. S. Fundamenskii ◽  
B. P. Strunin ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Structural Investigation ◽  
Crystal And Molecular Structure ◽  
X Ray Diffraction ◽  
X Ray

The crystal and molecular structure of tris(pentamethylenedithiocarbamate) chromium(III)-chloroform (1 : 2)

1981 ◽  
Vol 46 (1) ◽  
pp. 6-19 ◽  
Author(s):  
Viktor Kettman ◽  
Ján Garaj ◽  
Jaroslav Majer
Keyword(s):  
Molecular Structure ◽  
Structural Analysis ◽  
Crystal And Molecular Structure ◽  
Analysis Method ◽  
Complex Molecules ◽  
Coordination Polyhedra ◽  
X Ray ◽  
Cell Dimensions ◽  
Crustal Density ◽  
Unit Cell Dimensions

The crystal and molecular structure of [Cr(S2CN(CH2)5)3].2 CHCl3 was found by the X-ray structural analysis method. The value R 0.090 was found for 1 131 observed independent reflections. The substance crystallizes in a space group of symmetry P212121 with the following unit cell dimensions: a = 0.8675 (6), b = 1.815(2), c = 2.155(3) nm. The experimentally observed crustal density was 1.48 Mgm-3 and the value calculated for Z = 4 was 1.51 Mgm-3. The CrS6 coordination polyhedron has the shape of a trigonally distorted octahedron, where the D3 symmetry is a approximately retained. The degree of trigonal distortion expressed as the projection of the chelate S-Cr-S angle onto the plane perpendicular to the C3 pseudo axis is Φ = 41.7° (Φ = 60° for an octahedron). The skeleton of the structure formed by the complex molecules contains channels filled with chloroform molecules. The specific type of complex-chloroform interaction consists of the formation of hydrogen bonds of the chloroform protons with the fully occupied pπ-orbitals of the sulphur atoms in the coordination polyhedra. The low stability and crystal decomposition can be explained by loss of chloroform from the channels.

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