SUPRAMOLECULAR CHEMISTRY OF CHIRAL RHENIUM LEWIS-ACIDS OF THE FORMULA[(ETA(5)-C5R5)RE(NO)(CO)(PPH3)](- SYNTHESIS AND CRYSTAL-STRUCTURE OF A 2() )1 ADDUCT OF AN AMMONIA COMPLEX AND 18-CROWN-6/

Authors
AMOROSO AJ ARIF AM GLADYSZ JA
Citation
Aj. Amoroso et al., SUPRAMOLECULAR CHEMISTRY OF CHIRAL RHENIUM LEWIS-ACIDS OF THE FORMULA[(ETA(5)-C5R5)RE(NO)(CO)(PPH3)](- SYNTHESIS AND CRYSTAL-STRUCTURE OF A 2() )1 ADDUCT OF AN AMMONIA COMPLEX AND 18-CROWN-6/, Organometallics, 16(26), 1997, pp. 6032-6034
Citations number
18
Journal title
Organometallics → ACNP
ISSN journal
02767333
Volume
16
Issue
26
Year of publication
1997
Pages
6032 - 6034
Database
ISI
SICI code
0276-7333(1997)16:26<6032:SCOCRL>2.0.ZU;2-#
Abstract
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(+))}-2 PF(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.