Title : Probing C-H...X hydrogen bonds in amide-functionalized imidazolium salts under high pressure.

Pub. Date : 2004 May 8

PMID : 15267793






6 Functional Relationships(s)
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1 We have probed under high pressure the C-H hydrogen bonds formed by N,N(")-disubstituted imidazolium ions having PF(6) (-) and Br(-) counterions. Hydrogen sperm associated antigen 17 Homo sapiens
2 The appearance of a signal for the free-NH unit (or weakly bonded N-H...F unit) in the infrared spectrum of the PF(6) (-) salt indicates that conventional N-H...O and N-H...N hydrogen bonds do not fully dominate the packing. Hydrogen sperm associated antigen 17 Homo sapiens
3 It is likely that the charge-enhanced C(2)-H...F interactions, combined with other weak hydrogen bonds, disturb the formation of N-H hydrogen bonds in the PF(6) (-) salt. Hydrogen sperm associated antigen 17 Homo sapiens
4 It is likely that the charge-enhanced C(2)-H...F interactions, combined with other weak hydrogen bonds, disturb the formation of N-H hydrogen bonds in the PF(6) (-) salt. Hydrogen sperm associated antigen 17 Homo sapiens
5 This finding suggests that the hydrogen bonding patterns are determined by the relative hydrogen bond acceptor strengths of the Br(-) and PF(6) (-) ions. Hydrogen sperm associated antigen 17 Homo sapiens
6 This finding suggests that the hydrogen bonding patterns are determined by the relative hydrogen bond acceptor strengths of the Br(-) and PF(6) (-) ions. Hydrogen sperm associated antigen 17 Homo sapiens