Isotopic multiplets in the /sup 13/C NMR spectra of cobalt(III) complexes with partially deuterated coordinated NH/sub 2/ or NH groups. Dihedral angular dependence of the three-bond isotope effects

Journal Article · Tue Mar 04 23:00:00 EST 1986 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00265a049· OSTI ID:5849142

Yashiro, M; Yano, S; Yoshikawa, S

Recent reports have demonstrated that isotopic multiplets observed in the /sup 13/C NMR spectra of amides, carbohydrates, or amines with partially deuterated NH or OH groups can be very helpful in spectral assignments. These multiplets are due to upfield deuterium isotope effects on the /sup 13/C chemical shifts and can be observed in the slow hydrogen exchange conditions. This paper presents the first application of the isotopic multiplets to the /sup 13/C NMR spectra of the coordination compounds, which can provide interesting examples of dihedral angular dependence of the three-bond isotope effects. 17 references, 2 tables.

• Research Organization: Univ. of Tokyo, Japan
• OSTI ID: 5849142
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 108:5; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400302* -- Organic Chemistry-- Isotope Effects-- (-1987)
AMINES
CARBON 13
CARBON ISOTOPES
CHEMICAL SHIFT
COBALT COMPLEXES
COMPLEXES
DATA
DEUTERIUM COMPOUNDS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
RESONANCE
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES