Preparation, characterization and crystal structures of two amine-oxime rhodium complexes
Two amine-oxime complexes of rhodium(III) have been synthesized and structurally characterized as model compounds for a study of potential radiopharmaceuticals. Dichlorobis (2-acetylpyridineoxime)-rhodium(III) crystallizes in space group Pnma with a = 13.462(4), b = 12.496(2), c = 9.661(2)A, Z = 4, D/sub x/ = 1.819(2)g/cm/sup 3/. The chloro ligands are trans (av Rh-Cl = 2.337(2)A) in the octahedral Rh(III) complex. The oxime oxygens are involved in a short intramolecular hydrogen bond (O---O = 2.446(4)A) with the hydrogen atom as well as the rhodium and two chlorine atoms on the mirror. Dichloro-(4,4'-(1,2-ethanediyldiimino)bis(4-methyl-2-pentanone-dioxime))rhodium (III) crystallizes in space group P2/sub 1/2/sub 1/2/sub 1/ with a = 14.435(3), b = 7.638(9), c = 16.596(3)A, Z = 4, D/sub x/ = 1.667(2)g/cm/sup 3/. The trans dichoro octahedral complex (av Rh downward arrow not identical to = 2.341(11)A) has cis amine nitrogens (av Rh-N = 2.079(3)A) and one cis oxime nitrogens (av Rh-N = 2.030(3)A). The oxime oxygen atoms are involved in a short intramolecular hydrogen bond (O---O = 2.423(3)A). Synthesis and proton magnetic resonance results are included, along with a comparison with other rhodium(III) amine-oxime complex structures.
- Research Organization:
- Univ. of Missouri, Columbia (USA)
- OSTI ID:
- 7169800
- Journal Information:
- J. Coord. Chem.; (United States), Vol. 16:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
62 RADIOLOGY AND NUCLEAR MEDICINE
AMINES
CHEMICAL PREPARATION
CHEMICAL PROPERTIES
CRYSTAL STRUCTURE
OXIMES
RHODIUM COMPLEXES
CHEMICAL BONDS
EXPERIMENTAL DATA
LIGANDS
NUCLEAR MAGNETIC RESONANCE
SPACE GROUPS
COMPLEXES
DATA
HYDROXY COMPOUNDS
INFORMATION
MAGNETIC RESONANCE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
RESONANCE
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties
550600 - Medicine