Synthesis and characterization of technetium(III) and technetium(II) complexes with mixed phosphine-, chloride, and nitrogen-donor ligands. X-ray crystal structure of TcCl sub 3 (PPh sub 3 )(bpy)
- Massachusetts Institute of Technology, Cambridge (USA)
- Harvard Medical School, Boston, MA (USA)
The synthesis and characterization of Tc(III) complexes of the types TcCl{sub 3}(PMe{sub 2}Ph)(LL) and TcCl{sub 2}(PMe{sub 2}Ph){sub 2}(LL){sup +}, the neutral Tc(II) series TcCl{sub 2}(PMe{sub 2}Ph){sub 2}(LL), and the Tc(II) complex TcCl(PMe{sub 2}Ph){sub 3}(bpy){sup +} are reported (LL = 2,2{prime}-bipyridine (bpy), 1,10-phenanthroline (phen), 2,2{prime}-bipyrimidine (bpm)). The Tc(III) complexes exhibit contact-shifted {sup 1}H NMR spectra with relatively narrow line widths; the Tc(II) species give less well-defined spectra. The electrochemistry of these complexes is discussed as well. An x-ray structure determination of TcCl{sub 3}(PPh{sub 3})(bpy) was performed. Crystal data for C{sub 28}H{sub 23}Cl{sub 3}N{sub 2}PTc: monoclinic, space group = P2{sub 1}/n, a = 10.980 (2) {angstrom}, b = 24.336 (5) {angstrom}, c = 10.172 (2) {angstrom}, {beta} = 106.89 (1){degree}, V = 2,600.9 (8) {angstrom}{sup 3} to give Z = 4. Structure solution and refinement based on 4,366 reflections converged at R = 0.057 and R{sub w} = 0.074. 25 refs., 4 figs., 5 tabs.
- DOE Contract Number:
- FG02-87ER60526
- OSTI ID:
- 7121547
- Journal Information:
- Inorganic Chemistry; (USA), Vol. 29:4; ISSN 0020-1669
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AROMATICS
SYNTHESIS
CHLORINE COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHENANTHROLINES
TECHNETIUM COMPLEXES
CRYSTAL STRUCTURE
EXPERIMENTAL DATA
AZAARENES
COMPLEXES
DATA
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties