Synthesis and characterization of technetium(V) complexes with N-(thiocarbamoyl)benzamidines. X-ray crystal structure of bis(N-(N,N-diethylthiocarbamoyl)benzamidinato)oxotechnetium(V) chloride, (TcO(Et sub 2 tcb) sub 2 )Cl

• Published in: Inorganic chemistry 1989-03, Vol.28:5
• Main Authors: Abram, U., Muenze, R., Hartung, J., Beyer, L., Kirmse, R., Koehler, K., Stach, J., Behm, H., Beurskens, P.T.
• Format: Article
• Language: English
• Subjects: 400201 - Chemical & Physicochemical Properties; CHLORINE COMPOUNDS; COMPLEXES; CRYSTAL STRUCTURE; DATA; EXPERIMENTAL DATA; HALOGEN COMPOUNDS; INFORMATION; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; ORGANOMETALLIC COMPOUNDS; SYNTHESIS; TECHNETIUM COMPLEXES; TRANSITION ELEMENT COMPLEXES
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/ic00304a008

Technetium(V) complexes of the forms TcNL{sub 2} and (TcOL{sub 2})Cl (L = Et{sub 2}tcb{sup {minus}}, morphtcb{sup {minus}}, piptcb{sup {minus}}) with N-(thiocarbamoyl)-benzamidinato (tcb{sup {minus}}) ligands have been synthesized and characterized by elemental analysis and IR, {sup 1}H NMR, and uv/vis spectrocsopy. Selected compounds have been studied by EI and FAB mass spectrometry, including the MIKE technique. A single-crystal x-ray structure determination shows that the cation of bis(N-(N,N-diethylthiocarbamoyl)benzamidinato)oxo-technetium(V) chloride, formula weight 618.5, has a square-pyramidal structure with cis-coordinated ligands. This complex crystallizes in the triclinic space group P{bar 1} with a = 10.87 (2) {angstrom}, b = 11.587 (2) {angstrom}, c = 12.374 (2) {angstrom}, {alpha} = 91.94 (2){degree}, {beta} = 106.04 (2){degree}, {gamma} = 112.18 (2){degree}, and V = 1370.4 (4) {angstrom}{sup 3} with Z = 2 for 4723 independent observed reflections. 50 refs., 4 figs., 4 tabs.