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Structure Analysis of a Rodlike Macromolecule: Poly(2,2'-(p,p'-Biphenyl)−6,6'-bis(4-Phenylquinoline))

Published online by Cambridge University Press:  26 February 2011

Craig W. Burkhart ,
Jerome B. Lando  and
John K. Stille
Craig W. Burkhart
Affiliation:
Department of Macromolecular Science, Case Western Reserve University, Cleveland, OH 44106
Jerome B. Lando
Affiliation:
Department of Macromolecular Science, Case Western Reserve University, Cleveland, OH 44106
John K. Stille
Affiliation:
Department of Chemistry, Colorado State University, Fort Collins, CO 80521
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Abstract

Uniaxially oriented, crystalline fibers of poly(2,2'-(p,p'-biphenyl)- 6,6'-bis(4-phenylquinoline)) [PBPQ], were subjected to structure analysis via x-ray diffraction and molecular packing analysis. Packing analysis was required due to the sparse and diffuse nature of the fiber diffraction photographs. The combination of the two techniques allowed us to resolve the crystal structure. PBPQ packs in a syn conformation, in a modified herringbone structure. It has a unit cell of a = 16.2Å, b = 5.31Å, c = 21.4Å. There are two independent chains in the unit cell. An overview of the refinement of the crystal structure, the packing analysis and the crystallography are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 134: Symposium J – Materials Science and Engineering of Rigid-Rod Polymers , 1988 , 475
Copyright
Copyright © Materials Research Society 1989

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References

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