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Intrinsic ASIS of the methyl protons of camphor
Author(s) -
Bertran Jose Fernández,
Rodriguez Mario rodríguez
Publication year - 1985
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260231104
Subject(s) - chemistry , solvation , solvent , methyl group , camphor , benzene , ring (chemistry) , solvent effects , hydrocarbon , polar , computational chemistry , stereochemistry , organic chemistry , group (periodic table) , physics , astronomy
The intrinsic ASIS of the C‐8, C‐9 and C‐10 methyl protons of camphor in 14 hydrocarbon solvents have been calculated using intrinsic ASIS values of the TMS protons. The intrinsic ASIS of the methyl groups show excellent correlation among themselves and, therefore, can be factored into independent solute and solvent factors U i V α . The solute factors, U i , depend on the position of the methyl group with respect to the polar carbonyl group. The solvent factors, V α , correlate with the benzene ring concentration of the aromatic solvents measured by d / M , which is in accordance with a general solvation mechanism but not with the formation of specific solute‐solvent complexes.