Structural variations induced by changes in oxidation state and their role in electron transfer. Crystal and molecular structures of cis-(Ru(bpy)/sub 2/Cl/sub 2/) x 3. 5H/sub 2/O and cis-(Ru(bpy)/sub 2/Cl/sub 2/)Cl x 2H/sub 2/O
The results of an X-ray crystallographic study are reported on the hydrates cis-(Ru/sup II/(bpy)/sub 2/Cl/sub 2/) x 3.5H/sub 2/O and cis-(Ru/sup III/(bpy)/sub 2/Cl/sub 2/)Cl x 2H/sub 2/O (bpy is 2,2'-bipyridine, C/sub 10/H/sub 8/N/sub 2/). The Ru(II) complex crystallizes the monoclinic space group C2/c with four molecules in a cell of dimensions a = 18.248 (14) A, b = 13.146 (5) A, c = 10.792 (4) A, and ..beta.. = 119.49 (5)/sup 0/ and was refined to a final value of the weighted R factor of 0.031 based on 1912 independent observations. The Ru(III) complex crystallizes in the triclinic space group P1 with two molecules in a cell of dimensions a = 7.042 (3) A, b = 13.000 (5) A, c = 12.321 (3) A, ..cap alpha.. = 89.93 (2)/sup 0/, ..beta.. = 100.62 (2)/sup 0/, and ..gamma.. = 92.23 (3)/sup 0/ and was refined to a weighted R factor of 0.033 based on 2104 independent observations. In terms of intramolecular structure, there is a significant shortening (0.10 A) of the Ru-Cl bond upon oxidation and a slighter increase (0.04 A) in the Ru-N distances trans to the Ru-Cl bonds. 51 references, 2 figures, 6 tables.
- Research Organization:
- Univ. of North Carolina, Chapel Hill
- OSTI ID:
- 5826345
- Journal Information:
- Inorg. Chem.; (United States), Vol. 24:26
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BIPYRIDINES
CRYSTAL STRUCTURE
MOLECULAR STRUCTURE
HYDRATES
RUTHENIUM COMPLEXES
BOND ANGLE
BOND LENGTHS
CHEMICAL BONDS
ELECTRON TRANSFER
EXPERIMENTAL DATA
HYDROGEN
LATTICE PARAMETERS
SPACE GROUPS
VALENCE
WATER
X-RAY DIFFRACTION
AZINES
COHERENT SCATTERING
COMPLEXES
DATA
DIFFRACTION
DIMENSIONS
ELEMENTS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
LENGTH
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PYRIDINES
SCATTERING
TRANSITION ELEMENT COMPLEXES
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)