1,4-Di-4-pyridylpiperazine; Synthesis, Crystallographic and Mesogenic Studies of its H-boned Complexes with p-Alkoxybenzoic Acids

摘要

1,4-Di-4-pyridylpiperazine 1 was prepared from reaction of piperazine with 4-chloropyridine and then further blended with p-alkoxybenzoic acids. Subsequently, a series of H-bonded complexes were obtained and the mesogenic behaviours of the complexes were then investigated. A good quality of crystal from 1,4-di-4-pyridylpiperazine and p-octyloxybenzoic acid for single crystal structure determination was also isolated and then studied.