R. Pearlstein, W. M. Davis, Alun G. Jones
Aug 1, 1989
Citations
0
Influential Citations
37
Citations
Journal
Inorganic Chemistry
Abstract
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.