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Structure of 1‐ exo ‐Phenylbicyclo[2.1.0]pentane‐5‐carboxylic acid by X‐Ray Analysis
Author(s) -
Bernardinelli Gérald,
Combremont JeanJacques,
Gerdil Raymond
Publication year - 1976
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19760590448
Subject(s) - chemistry , pentane , monoclinic crystal system , bicyclic molecule , ring (chemistry) , carboxylic acid , hydrocarbon , hydrogen bond , crystallography , stereochemistry , crystal structure , molecule , organic chemistry
The title compound (C 12 H 12 O 2 ) crystallizes in the monoclinic space group P 2 1 /c. The structure was solved by direct methods, and the positions of all the hydrogen atoms were obtained from a difference synthesis. The final Rω was 0.04. Current MO theories of the interaction of unsaturated groups with small ring systems are consistent with the bond length variations encountered in the present substituted bicyclo[2.1.0]pentane skeleton with respect to the unsubstituted hydrocarbon.