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A 13 C NMR study of pyridine in the presence of aqueous solutions of carbohydrates
Author(s) -
Hall Laurance D.,
Yalpani Mansur
Publication year - 1981
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270160116
Subject(s) - pyridine , aqueous solution , chemistry , sucrose , relaxation (psychology) , carbohydrate , sodium , nuclear chemistry , organic chemistry , biology , neuroscience
Spin‐lattice relaxation rates of the 13 C responses of pyridine were measured in the presence of aqueous sucrose and sodium alginate solutions and calcium alginate gels. In each case the results indicated a reduction in the overall tumbling rate of pyridine compared with that in aqueous media due to molecular association with the carbohydrate. Although anisotropic motion about the C‐4:N axis of pyridine was apparent in the sucrose solutions no consistent trends were observed for the alginate samples.