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Issue 7, 1998
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Tetraphenyldihydrocyclobutaarenes—what causes the extremely long 1.72 Å C–C single bond?

Abstract

The exceptional 0.19 Å lengthening (to 1.720 vs. 1.53 Å in ethane) of the Csp3–Csp3 bond in tetraphenyldihydrocyclobutaarenes is attributed to a combination of cyclobutene ring strain (0.04 Å), through-bond coupling (0.08 Å) and steric repulsion (0.07 Å) by comparison with model systems.

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Article information


Chem. Commun., 1998, 769-770
Article type
Paper

Tetraphenyldihydrocyclobutaarenes—what causes the extremely long 1.72 Å C–C single bond?

H. F. Bettinger, P. v. R. Schleyer, H. F. Bettinger and H. F. Schaefer III, Chem. Commun., 1998, 769
DOI: 10.1039/A800741A

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