Trigonal-prismatic vs. octahedral coordination in a series of tris(benzene-1,2-dithiolato) complexes. 2. Crystal and molecular structure of tetraphenylarsonium tris(benzene-1,2-dithiolato)niobate(V), [(C6H5)4As][Nb(S2C6H4)3]

1976 ◽  
Vol 15 (7) ◽  
pp. 1589-1595 ◽  
Author(s):  
Martin. Cowie ◽  
Michael J. Bennett
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Octahedral Coordination ◽  
Trigonal Prismatic

The crystal and molecular structure of scandium formate

1990 ◽  
Vol 55 (2) ◽  
pp. 426-434 ◽  
Author(s):  
Jindřich Hašek ◽  
Jan Ondráček ◽  
Pavel Karen ◽  
Jaroslav Bauer
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bond ◽  
Raman Spectra ◽  
Crystal And Molecular Structure ◽  
Three Dimensional ◽  
Ir And Raman Spectra ◽  
Octahedral Coordination ◽  
Monoclinic System ◽  
Space Group ◽  
Ir And Raman

The structure of Sc(HCOO)3 was refined up to R = 0.046. The substance crystallizes in the monoclinic system, space group P21/c, a = 10.340(2), b = 6.631(1), c = 9.027(2) Å, β = 98.11(2)°, Z = 4. Scandium atoms are placed in the two symmetrically non-equivalent centres of symmetry thus forming alternating layers parallel to the plane of b,c. All formate oxygens are coordinated to Sc atoms thus forming a three-dimensional net with octahedral coordination of both independent Sc atoms. C-H bonds are oriented in between the nearest oxygens of neighbouring formate groups, but only one contact is sufficiently short to be denoted as the C-H···O hydrogen bond. IR and Raman spectra seem to confirm the differences between formate anions.

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