IMINOPHOSPHORANE-SUBSTITUTED PROTON SPONGES .3. PREPARATION AND CRYSTAL-STRUCTURE OF 3 SALTS OF PROTONATED 1-DIMETHYLAMINO-8-TRIPHENYLPHOSPHORANYLIDENEAMMONIONAPHTHALENE

被引：18

作者：

LLAMASSAIZ, AL ^{[1
]}

FOCESFOCES, C ^{[1
]}

ELGUERO, J ^{[1
]}

MOLINA, P ^{[1
]}

ALAJARIN, M ^{[1
]}

VIDAL, A ^{[1
]}

机构：

[1] FAC CIENCIAS MURCIA,DEPT QUIM ORGAN,E-30071 MURCIA,SPAIN

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1991年 / 12期

关键词：

D O I：

10.1039/p29910002033

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Results of the crystal structure analysis of three 1-dimethylamino-8-triphenylphosphoranylideneammonionaphthalene salts are described. The 'extra proton' has been found to bind to the nitrogen atom of the iminophosphorane group, being engaged in a strong intramolecular contact [N ... N = 2.519(3), 2.543(4), 2.571(6) angstrom; N-H ... N = 154(6), 155(6) and 147(6)-degrees for Br-, BF4- and PF6- salts, respectively] which is shorter in two salts than those displayed by the 1,8-bis(dimethylamino)naphthalene salts of Br-, BF4- and TeOF5-, which are considered as 'proton sponges' [2.555(3), 2.562(2) and 2.574(3) angstrom, respectively].

引用

页码：2033 / 2040

页数：8

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