| Literature DB >> 25169196 |
Oliver Dumele1, Dino Wu, Nils Trapp, Nancy Goroff, François Diederich.
Abstract
Halogen bonding (XB) between (iodoethynyl)benzene donors and quinuclidine in benzene affords binding free enthalpies (ΔG, 298 K) between -1.1 and -2.4 kcal mol(-1), with a strong LFER with the Hammett parameter σpara. The enthalpic driving force is compensated by an unfavorable entropic term. The binding affinity of XB acceptors increases in the order pyridine < C═O < S═O < P═O < quinuclidine. Diverse XB packing motifs are observed in the solid state.Entities:
Year: 2014 PMID: 25169196 DOI: 10.1021/ol502099j
Source DB: PubMed Journal: Org Lett ISSN: 1523-7052 Impact factor: 6.005