Synthesis and characterization of manganese and rhenium metallacycles
- Univ. of Louisville, KY (USA)
Reactions of manganese or rhenium formyl complexes bearing phosphine or phosphite ligands with protonic acids have been utilized in developing synthetic routes to new five- and six-membered metallacyclic compounds, Mn(CO){sub 4}(P(Ph){sub 2}(o-C{sub 6}H{sub 4}CH{sub 2})) and M(CO){sub 3}(L) (P(OPh){sub 2}(o-OC{sub 6}H{sub 4}CH{sub 2})) (M = Mn, L = CO or P(OPh){sub 3}; M = Re, L = P(OPh){sub 3}). The synthetic route makes use of the ability of formyl complexes to transfer hydride in the presence of a protonic acid without transferring it to the acid. Two of the manganese compounds have been characterized by X-ray crystallography: (i) crystal data for Mn-(CO){sub 4}(P(Ph){sub 2}(o-C{sub 6}H{sub 4}CH{sub 2})), a = 13.519 (3) {angstrom}, b = 8.295 (2) {angstrom}, c = 18.199 (3) {angstrom}, {beta} = 90.82 (1){degree}, Z = 4, d{sub c} = 1.44 g cm{sup {minus}3}, space group P2{sub 1}/c, and R = 0.029; (ii) crystal data for Mn(CO){sub 3}(P(OPh){sub 3}) (P(OPh){sub 2}(o-OC{sub 6}H{sub 4}CH{sub 2})), a = 15.977 (8) {angstrom}, b = 26.554 (10) {angstrom}, c = 8.523 (6) {angstrom}, {beta} = 87.12 (5){degree}, Z = 4, d{sub c} = 1.42 g cm{sup {minus}3}, space group P2{sub 1}/n, and R = 0.039. The IR and {sup 1}H and {sup 13}C NMR spectral properties of all four metallacycles are reported.
- OSTI ID:
- 6985567
- Journal Information:
- Organometallics; (USA), Journal Name: Organometallics; (USA) Vol. 9:2; ISSN 0276-7333; ISSN ORGND
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360101 -- Metals & Alloys-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
CALCULATION METHODS
COMPLEXES
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
INFORMATION
LIGANDS
MANGANESE COMPLEXES
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
RHENIUM COMPLEXES
SYNTHESIS
TRANSITION ELEMENT COMPLEXES