Supramolecular chemistry of chiral rhenium Lewis acids of the formula [(η5-C5R5)Re(NO)(CO)(PPh3)]+:: Synthesis and crystal structure of a 2:1 adduct of an ammonia complex and 18-crown-6

被引：9
作者：
Amoroso, AJ [1 ]
Arif, AM [1 ]
Gladysz, JA [1 ]
机构：
[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA
来源：
ORGANOMETALLICS | 1997年 / 16卷 / 26期
关键词：
D O I：
10.1021/om970792e
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
When, ether is added by vapor diffusion to a CH3CN solution of racemic [(eta(5)-C5H5)Re(NO)(PPh3)(NH3]+PF6-(1(+)PF(6)(-)) and 18-crown-6 (1:2 mol ratio), a 2:1 adduct of composition {(1(+))(18-crown-6)(1(+))}-2PF(6)(-). OEt2 crystallizes (94%). A crystal structure shows opposite enantiomers of the cations about a crown-based inversion center, each with three N ... H ... O hydrogen bonds to complementary sets of ether oxygens-a meso assembly. NMR data also establish binding in solution.
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页码：6032 / 6034
页数：3
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