A Comparative 19F NMR study of electronic effects in some fluoroaryl compounds of antimony and bismuth and in their carbon and nitrogen analogues
作者:A.N. Nesmeyanov、D.N. Kravtsov、B.A. Kvasov、S.I. Pombrik、E.I. Fedin
DOI:10.1016/s0022-328x(00)81747-7
日期:1973.1
A number of m- and p-fluorophenyl compounds of type Ar2QC6H4F (Q = Sb, Bi, N and CH; Ar = C6H5, C6H4F) have been prepared. The l0F chemical shifts relative to fluorobenzene have been measured in cyclohexane, chloroform and pyridine for all these compounds. On the basis of the data obtained, the electronic nature of the Ar2Sb and Ar2Bi substituents has been studied and compared with that of the corresponding
若干米和- p型的Ar氟苯基化合物2 QC 6 ħ 4 ; F(氩= C Q =锑,铋,N和CH 6 ħ 5,C 6 H ^ 4已经制备F)。对于所有这些化合物,已经在环己烷,氯仿和吡啶中测量了相对于氟苯的10 F化学位移。根据获得的数据,研究了Ar 2 Sb和Ar 2 Bi取代基的电子性质,并将其与相应的(C 6 H 5)2 N和(C 6 H5)2个CH组。已显示Ar 2 Sb和Ar 2 Bi取代基的电子效应主要是感应性的,相对于电子和质子给体溶剂,其溶剂敏感性在大多数情况下接近于零。