Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.276, 119-123, 1996
The Central C-C Bond-Length in the Bi(Anthracene-9,10-Dimethylene) Photoisomer - Unusual Elongation and Crystalline State Reaction
Crystal structure analysis of bi(anthracene-9,10-dimethylene) photoisomer (1) revealed that the anomalous elongation of the central C-C bond in the previously reported X-ray structure is an artifact caused by partial cycloreversion of 1 to no-bonded isomer in crystalline state.