... Structure and crystal chemistry analysis of (4 E )- and (4 Z )-6,6',7,7'-tetrahydro-5H,5'H-4,4'-bi-1-benzothiophene . Abstract By means of X-ray crystallography the structures of (4 E )-6,6',7,7'-tetrahydro-5H,5'H-4,4'-bi-1-benzothiophene and (4 Z )-6,6',7,7'-tetrahydro-5H,5'H-4,4'-bi-1-benzothiophene were determined. ... Moscow University Chemistry Bulletin . 2009, Vol. ... Copyright (C) Chemistry Dept., ... Copyright (C) Chemisty Department of Moscow State University . ...