Complexes of technetium(V) with potentially tridentate schiff bases derived from s-methyldithiocarbazate

Journal Article · Thu Jan 01 04:00:00 EST 1987 · J. Coord. Chem.; (United States)

DOI:https://doi.org/10.1080/00958978708081212· OSTI ID:5571163

DuPreez, J G.H.; Gerber, T I.A.; Knoesen, O

The syntheses and characterization of several new neutral oxotechnetium(V) complexes with potentially dianionic tridentate Schiff bases, derived from S-methyldithiocarbazate, are described. For a 1:1 metal ion to ligand ratio the five-coordinate complexes TcOLCl were isolated in all cases. Only in one case could a six-coordinate TcOL/sub 2/Cl, with the ligand acting as a bidentate chelate, be isolated from a 1:2 metal ion to ligand ratio. Magnetic susceptibility measurements of the complex TcO(HAF)Cl surprisingly indicate paramagnetism with a d/sup 2/ electronic configuration, while all the other compounds were found to be diamagnetic. The relative strength of the Tc=O bond is mainly determined by the electronic influence of the cis-ligands. The complexes have been characterized by elemental analyses, infrared and electronic spectra, and conductance measurements.

• Research Organization: Univ. of Port Elizabeth, South Africa
• OSTI ID: 5571163
• Journal Information: J. Coord. Chem.; (United States), Journal Name: J. Coord. Chem.; (United States) Vol. 16:3; ISSN JCCMB
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
CHELATES
CHEMICAL BONDS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COMPLEXES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON SPECTRA
ELECTRONIC STRUCTURE
EXPERIMENTAL DATA
IMINES
INFORMATION
INFRARED SPECTRA
LIGANDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
SCHIFF BASES
SPECTRA
SYNTHESIS
TECHNETIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES