METAL-ALKYL AND METAL-ARYL COMPOUNDS .46. PHENYLSODIUM COMPOUNDS WITH ETA-3-ALLYL OR ETA-6-PHENYL COORDINATION

被引:22
作者
CORBELIN, S [1 ]
KOPF, J [1 ]
LORENZEN, NP [1 ]
WEISS, E [1 ]
机构
[1] UNIV HAMBURG,INST ANORGAN & ANGEW CHEM,MARTIN LUTHER KING PL 6,W-2000 HAMBURG 13,GERMANY
来源
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1991年 / 30卷 / 07期
关键词
PERTURBED-PI-SYSTEMS; CRYSTAL-STRUCTURE;
D O I
10.1002/anie.199108251
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In spite of the identical negative charge available, phenyl-substituted allyl anions can be coordinated differently by counter ions. Thus the Na(pmdta) + (pmdta = pentamethyldiethylenetriamine) ion coordinates in a eta-3 manner to the allyl system in 1, but in a eta-6 manner to the phenyl ring in 2. Apparently the energy surface for the migration of the cation over the planar carbanion in 2 contains no large energy barriers and for steric reasons the Na(pmta)+ ion avoids coordinating with the allyl system of the cyclohexenyl unit.
引用
收藏
页码:825 / 827
页数:3
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