Syntheses, reactions, and structures of dioxycarbene complexes of rhenium
The cyclic dioxycarbene complex Re(CO)4Br(COCH2CH2O) (I) reacts with PPh3 to give initially fac-Re(CO)3(PPh3)Br(COCH2CH2O) (II) and upon further reaction Re(CO)2(PPh3)2Br(COCH2CH2O) (II). The reaction of I with the diphosphines Ph2P(CH2)/sub n/PPh2 (n = 1,2) gives the diphosphine-bridged complexes (Re(CO)3Br(COCH2CH2O))2(Ph2P(CH2)/sub n/PPh2) (IV, n = 1; V, n = 2). The structures of I and V were established by X-ray diffraction studies. The crystals of I are orthorhombic, space group Pbca, with a = 11.764 (2) A, b = 17.579 (4) A, c = 10.658 (2) A, and Z = 8, while those of V are triclinic, space group P anti I, with a = 11.160 (2) A, b = 11.369 (3) A, c = 10.090 (3) A, = 111.58 (3), US = 95.40 (2), el = 92.78 (2), Z = 1, and two acetones ((CH3)2CO) of crystallization. The dimethyldithiocarbamate ion, S2CN(CH3)2, reacts with I to remove in effect ethylene oxide form the carbene ligand, giving Gr(CO)5Br and HOCH2CH2SC(=S)N(CH3)2.
- Research Organization:
- Iowa State Univ., Ames
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 6371312
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 26:11; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
BOND ANGLE
BOND LENGTHS
CARBENES
CARBONYLS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
DIMENSIONS
EXPERIMENTAL DATA
INFORMATION
LENGTH
NUMERICAL DATA
OXYGEN COMPOUNDS
RADICALS
RHENIUM COMPLEXES
SCATTERING
SPACE GROUPS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
X-RAY DIFFRACTION