STUDIES OF THE ELECTRONIC AND SPATIAL STRUCTURE OF CADMIUM(II) DIALKYLDITHIOCARBAMATE MOLECULES IN NONAQUEOUS MEDIA

CdK EXAFS and Cd-113 NMR spectra were measured for solutions of cadmiu m dialkyldithiocarbamates in organic solvents with different donor num bers (tributylphosphine, methylene chloride, benzene, dibutylsulfide, pyridine, dimethylsulfoxide) and for some model compounds. The paramet ers of the local surroundings of the Cd atoms for complex forms in sol utions were determined from EXAFS data using the EXCURV-92 package. Sp atial structure models of the complex forms in a metal chelate-nonaque ous solvent system are suggested. It is established that coordination of nitrogen atoms by cadmium atoms in pyridine solutions is realized f or both Cd[(C2H5)(2)NCS2](2) and Cd[(n-C4H9)(2)NCS2](2). For the tribu tylphosphine solution of Cd[(n-C4H9)(2)NCS2](2), additional coordinati on of the phosphorus atoms of tributylphosphine molecules by cadmium i s established.