Carbon-13 nuclear magnetic resonance studies of trans-diacido(tetraamine)cobalt(III)
Carbon-13 nuclear magnetic resonance spectra of a series of trans-diacido(1,10-diamino-4,7-diazadecane)cobalt(III) complexes (trans-Co(3,2,3-tet)X/sub 2/, X = Br/sup -/, Cl/sup -/, N/sub 3//sup -/, NO/sub 2//sup -/, OAc) and trans-diacido(1,9-diamino-3,7-diazononane)cobalt(III) complexes (trans-Co(2,3,2-tet)X/sub 2/, X = Cl/sup -/, GlyH, /sup -/OAc, NH/sub 3/, NO/sub 2//sup -/) will be discussed. The /sup 13/C chemical shift is found to be linearly dependent on the ligand field strength (estimated from the electronic spectrum) of the axial ligands (X). The shielding of selected carbon atoms within the tetraamine ligand, which has been attributed to the central metal ion, increases with increasing axial ligand field strength.
- Research Organization:
- Illinois Inst. of Tech., Chicago
- OSTI ID:
- 6596609
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 21:6; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
CARBON 13
CARBON ISOTOPES
CHEMICAL SHIFT
COBALT COMPLEXES
COMPLEXES
DATA
EQUATIONS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
INFORMATION
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
RESONANCE
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES