C-H.O interactions in diethyl 5,5',6,6'-tetramethylbiphenyl-2, 2'-dicarboxylate at 193 K
The title compound, C(22)H(26)O(4), crystallized in the centrosymmetric space group P-1 with one molecule as the asymmetric unit. Three leading intermolecular C-H.O interactions have H.O distances of 2.71, 2.73 (2) and 2.71 (2) A and C-H.O angles of 167, 137.0 (15) and 163.1 (12) degrees. These interactions form ring and chain patterns. The biphenyl twist angle is 79.95 (6) degrees.
Gerkin
RE
Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA. gerkin@chemistry.ohio-state.edu.