NH vs. CH hydrogen bond formation in metal–organic anion receptors containing pyrrolylpyridine ligands

IED Vega, PA Gale, ME Light, SJ Loeb

Index: Vega, Ismael El Drubi; Gale, Philip A.; Light, Mark E.; Loeb, Stephen J. Chemical Communications, 2005 , # 39 p. 4913 - 4915

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Citation Number: 47

Abstract

We decided to investigate the role CH⋯anion hydrogen bonds 7 play in stabilising the anion complexes in solution by synthesising a series of receptors containing either no NH hydrogen bond donors or a combination of NH and CH donors and to compare the affinity of these complexes for anions. Compound 2 offers the putative anionic guest a choice of hydrogen bond donor (NH or CH) as the pyrrole is free to rotate around the pyrrole–pyridine bond without ...