B. Bak, J. J. Led, L. Nygaard
May 1, 1969
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Influential Citations
58
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract Microwave spectra of cyclobutene and four monosubstituted isotopic species have been recorded and analyzed, yielding a conventional r s -structure ( C 2v symmetry). The carbon ring is planar with valence angles 94.2° (at the double bond) and 85.8°. The C(1)-C(2) distance is 1.342 A, the C(2)-C(3) distance 1.517 A, and the C(3)-C(4) distance 1.566 A, all of these longer than any acyclic normals.