화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.303, 121-126, 1997
Molecular Rotation in Hexatic-B Mesophase Studied by the EPR Method
Molecular motions have been examined by EPR method in materials with the SmA-HexB-CryB phase sequence doped by paramagnetic copper (II) complex. It has been found that while in the SmA phase molecules rotate freely around their long molecular axes in the hexatic phase rotation can be either free or restricted. The restricted rotation is likely attributed to the herring-bone packing of the molecules in smectic layer.