摘要:
Non-covalent binding of various carboxylic acids to 1,3,5-tris(1,4,5,6-tetrahydropyrimidin-2-yl)benzene 3 produced 3 : 1 complexes with good solubility in various nonpolar organic solvents. The association constant for a model system was measured to be 61700 +/- 11900 M-1 in CD3OD/CDCl3 (97 : 3), indicating the utility of this interaction between an acid and tri-basic heterocyclic amidine 3 for assembling branched complexes. (C) 1999 Elsevier Science Ltd. All rights reserved.