Complexes of technetium(V) with potentially tridentate schiff bases derived from s-methyldithiocarbazate
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), Vol. 16:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SCHIFF BASES
CHEMICAL REACTIONS
TECHNETIUM COMPLEXES
CHEMICAL PREPARATION
ELECTRONIC STRUCTURE
MAGNETIC SUSCEPTIBILITY
CHELATES
CHEMICAL BONDS
ELECTRIC CONDUCTIVITY
ELECTRON SPECTRA
EXPERIMENTAL DATA
INFRARED SPECTRA
LIGANDS
COMPLEXES
DATA
ELECTRICAL PROPERTIES
IMINES
INFORMATION
MAGNETIC PROPERTIES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECTRA
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials