Chemistry Letters, Vol.33, No.2, 160-161, 2004
Well-defined ion-pair clusters of alkyl- and dialkylammonium salts of a sterically-hindered carboxylic acid. Implication for hydrogen-bonded Lys salt bridges
Ion-pair clusters of simple alkylammonium carboxylates in solution and in the crystalline state were described as a model of Lys salt bridge. tert-Butylammonium triphenyl acetate gives a well-defined tetrameric cluster by a cubic hydrogen bond (H-bond) network, and diisopropylammonium triphenyl acetate gives a dimeric cluster by a cyclic network.