화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.258, 209-216, 1995
X-Ray Structural-Analysis of a Mesogenic Compound N,N’-bis-(P-Butoxybenzylidene)-Alpha,Alpha’-Bi-P-Toluidin
Crystal and molecular structure of a mesogenic compound N,N’-Bis-p-(Butoxybenzylidene)-alpha,alpha’-bi-p-Toluidine has been determined by direct methods. The compound crystallizes in triclinic system with space group . Cell parameters are a = 6.116(3), b = 7.916(3), c = 31.421 (8)Angstrom, alpha = 92.39(2), beta = 92.35(3), gamma = 96.59(2)degrees and z = 2. The two symmetrical fractions of the molecule are almost planar but the angle between these planes is 63.5 degrees. The molecules are arranged in tilted layers which is precursor to the tilted smectic phase. Crystal-mesophase transition is discussed.