摘要:
(Ferrocenylmethyl)(2-hydroxyethyl) amine (1) reacts with mono- (CH(3)CO(2)H and PhCO(2)H) and dicarboxylic acids (HO(2)C(CH(2))(n)CO(2)H (n = 0-2), (E)- and (Z)-HO(2)CCH=CHCO(2)H) to give the respective carboxylates, viz [1H](RCO(2)) (2, R= CH(3); 3, R = Ph), [1H](2)(O(2)C(CH(2))(n)CO(2)) (4, n = 0; 5, n = 1; 6, n = 2), [1H](2)((E)-O(2)CCH= CHCO(2)) (7) and [1H](2)((Z)-HO(2)CCH=CHCO(2)) (8), as defined crystalline solids. Crystal structures of 2 - 8 have been determined by single-crystal X-ray diffraction analysis, revealing extensive hydrogen bonding interactions based predominantly on charge-supported N(+)-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonds, and on C-H center dot center dot center dot O contacts. Whereas the crystal assemblies of the monocarboxylate salts propagate preferentially in one dimension (2: cross-linked chains, 3: columnar stacks), those of the salts prepared from the dicarboxylic acids ( including hydrogenmaleate 8) are best described as layered composite arrays resulting via alternation of polar, hydrogen-bonded layers and of non-polar sheets constituted by the ferrocenyl substituents. (C) 2008 Elsevier B. V. All rights reserved.