Journal
CHEMISTRY OF MATERIALS
Volume 16, Issue 2, Pages 237-241Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm030579a
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We have determined crystallographic structures of four thiophene/phenylene co-oligomers with different molecular shapes. The compounds consist of the molecules straight, bent, or zigzag. All the crystals are monoclinic with space group either P2(1)/c or P2(1)/n, Z = 4, and the unique axis of b. The crystals are characterized by the presence of the molecular layered structure in which the molecules form the well-known herringbone structure laterally spreading along the ab-plane. We investigate the molecular disposition in the crystals and present its peculiarity in relation to those comprising nonstraight molecules (e.g., bent or zigzag). The specific effects upon optical characteristics produced by this peculiarity are mentioned.
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