Boese, Roland; Roth, Wolfgang R.; Blaeser, Dieter; Latz, Ruediger; Baeumen, Anja:

2,2,3,3-Tetrachloro-1,4-diphenylbicyclo[2.2.0]hexane, a strained bicyclic system.

In: Acta Crystallographica, Section C: Crystal Structure Communications (Acta Crystallogr.Sect.C Cryst.Struct.Commun.), Jg. C54 (1998) ; Nr. 12, S. ii, IUC9800072
ISSN: 0108-2701
Zeitschriftenaufsatz / Fach: Chemie
The title compd. belongs to the family of bicyclo-[2.2.0]hexanes. Crystallog. data and at. coordinates are given. The bond lengths C1-C4 and C3-C4 of the two four-membered rings are significantly longer than the av. bond length for such ring systems [1.554(21) .ANG.] which is obviously a result of angular strain. Exptl. bond lengths in .ANG.: C1-C4 1.607(3), C3-C4 1.592(3), C2-C3 1.588(3), C1-C6 1.577(3), C4-C5 1.543(3), C1-C2 1.535(3), C5-C6 1.535(4).

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