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Research Article


ScienceAsia 18 (1992): 151-161 |doi: 10.2306/scienceasia1513-1874.1992.18.151

 

MACROBICYCLIC COBALT(III) HEXAAMINE COMPLEXES BASED ON TRIS(PROPYLENEDIAMINE) COBALT(III)

 

SOONTAREE BENJARVONGKULCHAI, ANUSAK KAEWHOM AND PATRANIT WAITAYASUWAN

ABSTRACT: The cage complexes : ,fac-lel3,-[Co (N02)2Me3sar]3+ (1) (where (N02)2Me3sar = 1,8-dinitro-(4R, 12R, 17R)-trimethyl-3,6,10,13,16,19-hexaazabicyclo[6.6.6] eicosane) and ,fac-lel3,-[Co(Me3sep)]3+ (3) (where (Me3sep) = (4R,12R,17R)-trimethyl-1,3,6,8,10,13,16,19-octaazabicyclo[6.6.6] eicosane) and their corresponding halfcage complexes : ,fac-lel3,-[Co(N02Me3semisar)]3+ (2) (where (N02Me3semisar) = tris(((2-aminopropyl) amino) methyI)nitromethane) and ,fac-lel3,-[Co (Me3semisep)]3+ (4) (where (Me3semisep) = rris(((2-aminopropyl) amino) methyl)amine) are synthesized from ,fac-lel3,-[Co (R)(-)pn3]3+. Likewise their A-enantiomers are synthesised from ,fac-lel3,-[Co (S)(+)pn3]3+. The specific rotations, infrared spectra, visible spectra, nuclear magnetic resonance spectra and oxidation-reduction potentials are recorded.

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Department of Chemistry, Faculty of Sdence, Silpakorn University, Nakorn Pathom 73000, Thailand.
* Corresponding author

Received August 12, 1992