Preparation and characterization of TcCl sub 3 (PPh sub 3 ) sub 2 (MeCN) and its reactions with small. pi. -accepting ligands
- Massachusetts Institute of Technology, Cambridge (USA)
- Harvard Medical School, Boston, MA (USA)
The preparation and characterization of (acetonitrile)trichlorobis(triphenylphosphine)technetium(III) from (n-Bu{sub 4}N)(TcOCl{sub 4}) with triphenylphospine in acetonitrile solvent is described. The potentially rich reaction chemistry of this complex is discussed in relation to ReCl{sub 3}(PPh){sub 2}(MeCN). Reactions of TcCl{sub 3}(PPh{sub 3}){sub 2}(MeCN) with CO and NO are described. Characterization of the products, carbonyltrichlorobis(triphenylphosphine)technetium(III) and trichloronitrosylbis(triphenylphosphine)technetium(II), is also described. The carbonyl complex, C{sub 37}H{sub 30}Cl{sub 3}OP{sub 2}Tc, which crystallizes in space group C2/c with a = 24.649 (9) {angstrom}, b = 9.530 (3) {angstrom}, c = 15.870 {angstrom}, {beta} = 116.40 (3){degree}, V = 3339 (4) {angstrom}{sup 3}, and Z = 4, was structurally characterized. The Tc-C bond distance of 1.985 (9) {angstrom} as well as the C{equivalent to}O stretching frequency of 2054 cm{sup {minus}1} is indicative of the absence of significant {pi}-back-bonding in this complex. 21 refs., 1 fig., 3 tabs.
- OSTI ID:
- 5053079
- Journal Information:
- Inorganic Chemistry; (USA), Vol. 28:17; ISSN 0020-1669
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETONITRILE
CHEMICAL PREPARATION
AROMATICS
CHLORINE COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
TECHNETIUM COMPLEXES
CARBON MONOXIDE
CHEMICAL REACTIONS
EXPERIMENTAL DATA
NITRIC OXIDE
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COMPLEXES
DATA
HALOGEN COMPOUNDS
INFORMATION
NITRILES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties