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Organoantimony(V) cyanoximates: synthesis, spectra and crystal structures
K V Domasevitch1, N N Gerasimchuk, A Mokhir
1Inorganic Chemistry Division, Department of Chemistry, T. Shevchenko University, Vladimirskaya 64 St., 252034, Kiev, Ukraine.
Inorganic Chemistry
|January 16, 2003
Summary
Researchers synthesized 25 new organoantimony(V) cyanoximate compounds. X-ray crystallography revealed cyanoxime anions bind monodentately to antimony(V) in a distorted trigonal bipyramidal geometry.
Area of Science:
- Inorganic Chemistry
- Organometallic Chemistry
- Crystallography
Background:
- Organoantimony(V) compounds are of interest due to their diverse applications.
- Cyanoxime ligands offer unique coordination possibilities.
Purpose of the Study:
- To synthesize and characterize new organoantimony(V) cyanoximate complexes.
- To elucidate the coordination mode and structural features of these novel compounds.
Main Methods:
- Synthesis of 25 organoantimony(V) cyanoximates.
- Characterization using IR, visible, and NMR spectroscopy.
- X-ray crystallographic analysis of two representative compounds.
Main Results:
- Crystal structures of (C6H5)4Sb[ONC(CN)C(O)NH2] and (C6H5)4Sb[ONC(CN)C(O)N(CH3)2] were determined.
- Cyanoxime anions coordinate monodentately via oxime oxygen atoms.
- A distorted trigonal bipyramidal coordination geometry around antimony(V) was observed, with the cyanoxime ligand in an axial position.
Conclusions:
- The study established the synthesis and structural characterization of novel organoantimony(V) cyanoximates.
- The findings provide insights into the coordination chemistry of cyanoxime ligands with antimony(V).
- Spectroscopic data suggest a similar binding mode for other synthesized analogues.