Structure of trichloro(diethylenetriamine)gold(II), Au(dien)Cl/sub 3/, determined by single-crystal x-ray diffraction, Raman, and EXAFS spectroscopies: an EXAFS caveat
EXAFS spectroscopy of solid samples suggests that Au(dien)Cl/sub 3/ is a molecular entity with pseudooctahedral coordination. The three nitrogen donors from the dien ligand and one chlorine form an equatorial plane with two axial Au-Cl bonds of uncertain length (2.6 or 3.0 A) completing the coordination sphere. A single-crystal X-ray diffraction study confirms the overall structure but yields axial Au-Cl lengths of 3.121 (4) and 3.183 (3) A. The crystals are orthorhombic, space group Pbca, with cell constants a = 12.442 (5), b = 12.878 (9), and c = 13.177 (3) A and eight molecules per unit cell. These molecules were further characterized by Raman spectroscopy in solution as well as the solid state. Equatorial and axial Au-Cl stretching vibrations are observed for both phases, indicating some stability of the Au-Cl(axial) bonds in solution. 25 references, 3 figures, 4 tables.
- Research Organization:
- Univ. of Cincinnati, OH
- OSTI ID:
- 5826702
- Journal Information:
- Inorg. Chem.; (United States), Vol. 25:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHLORINE COMPOUNDS
CRYSTAL STRUCTURE
GOLD COMPOUNDS
ORGANIC COMPOUNDS
BOND LENGTHS
CHEMICAL BONDS
EXPERIMENTAL DATA
LATTICE PARAMETERS
LIGANDS
RAMAN SPECTROSCOPY
SOLUTIONS
SPACE GROUPS
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
COHERENT SCATTERING
DATA
DIFFRACTION
DIMENSIONS
DISPERSIONS
HALOGEN COMPOUNDS
INFORMATION
LASER SPECTROSCOPY
LENGTH
MIXTURES
NUMERICAL DATA
SCATTERING
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)