Heteronuclear NMR studies of cobalamins. 11. sup 15 N NMR studies of the axial nucleotide and amide side chains of cyanocobalamin and dicyanocobamides
Journal Article
·
· Inorganic Chemistry; (USA)
- Mississippi State Univ., Mississippi State (USA)
- Univ. of Texas, Arlington (USA)
- Univ. of Alabama, Tuscaloosa (USA)
Spectroscopic and thermodynamic evidence for the structure of cobalamines and dicyanocobalamin (CN){sub 2}Cbl have been previously reported. The structure indicated the occurrence of the so-called tuck-in species. Further observations and characterization of the tuck-in species of (CN){sub 2}Cbl by {sup 15}N NMR spectroscopy are presented herein. These results represent the first observation of the {sup 15}N NMR spectrum of benzimidazole nucleotide of cobalamins. The first NMR observation of the amide protons of cobalamins and their connectivity to the amide nitrogens are also reported. 50 refs., 2 figs., 2 tabs.
- OSTI ID:
- 5873068
- Journal Information:
- Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 29:24; ISSN 0020-1669; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Heteronuclear NMR studies of cobalamins. 9. Temperature-dependent NMR of organocobalt corrins enriched in /sup 13/C in the organic ligand and the thermodynamics of the base-on/base-off reaction
Heteronuclear NMR studies of cobalamins. 10. sup 15 N NMR studies of ( sup 15 N)cyanocobalt corrins
Structure and reactivity of lithium amides. /sup 6/Li, /sup 13/C, and /sup 15/N NMR spectroscopic studies and colligative measurements of lithium diphenylamide and lithium diphenylamide-lithium bromide complex solvated by tetrahydrofuran
Journal Article
·
Wed Oct 05 00:00:00 EDT 1988
· Inorg. Chem.; (United States)
·
OSTI ID:6334832
Heteronuclear NMR studies of cobalamins. 10. sup 15 N NMR studies of ( sup 15 N)cyanocobalt corrins
Journal Article
·
Wed Sep 19 00:00:00 EDT 1990
· Inorganic Chemistry; (USA)
·
OSTI ID:6010606
Structure and reactivity of lithium amides. /sup 6/Li, /sup 13/C, and /sup 15/N NMR spectroscopic studies and colligative measurements of lithium diphenylamide and lithium diphenylamide-lithium bromide complex solvated by tetrahydrofuran
Journal Article
·
Wed Aug 03 00:00:00 EDT 1988
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:6220941
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
AMIDES
COBALT COMPLEXES
COMPLEXES
CYANIDES
DATA
EXPERIMENTAL DATA
INFORMATION
ISOTOPES
LIGHT NUCLEI
MOLECULAR STRUCTURE
NITROGEN 15
NITROGEN ISOTOPES
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
AMIDES
COBALT COMPLEXES
COMPLEXES
CYANIDES
DATA
EXPERIMENTAL DATA
INFORMATION
ISOTOPES
LIGHT NUCLEI
MOLECULAR STRUCTURE
NITROGEN 15
NITROGEN ISOTOPES
NMR SPECTRA
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES