作者:Michael Stöcker
DOI:10.1002/mrc.1270200313
日期:1982.11
AbstractThe smallest one‐bond carbon—carbon coupling constants of cyclopropane derivatives have been measured for [1‐13C]cyclopropane‐1,1‐dicarboxylic acid and cyclopropanecarboxylic acid. The 13C, 13C coupling constants of cyclopropylcarbinol have also been determined. The dependence of 1J(CC) of the three‐membered ring on different substituents and hybridization effects is evaluated. The carbon—carbon coupling constant of the unsubstituted cyclopropane is discussed on the basis of self‐consistent perturbation theory (SCPT) and s character calculations (localized bond orbitals), and the results are compared with the experimental finding. It is shown that the 1J (CC) can be interpreted by assuming a dual‐pathway coupling mechanism.