Perfectly Staggered and Twisted Difluoromethylene Groups in Perfluoroalkyl Chains: Structure of M[C4F9SO2NSO2C4F 9] (M = Na, K)

Angewandte Chemie (International Edition in English)

Volumn 36, Issue 12, 1997, Pages 1331-1333

  Xue, Lixin ^a   DesMarteau, Darryl D ^a   Pennington, William T ^a  

^a CLEMSON UNIVERSITY   (United States)

Author keywords

Alkanes; Conformation analysis; Fluorine; Ionomers; Solid state structures

Indexed keywords

EID: 0030848348     PISSN: 05700833     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.199713311     Document Type: Article

References (20)

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13. Two of the eight independent perfluoroalkyl chains within the asymmetric unit of 4 have planar all-staggered conformations with chain torsion angles of 177.2 and 178.3°. This is presumably due to local packing forces that result in close-packing of these chains similar to those in 1. If these values are excluded, the range of torsion angle values for 4 is 154.7-173.7°.
14. D. D. DesMarteau, W. T. Pennington, L. Xue, unpublished results.
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