Dimethyl dispiro[tricyclo[3.3.1.1(3,7)]decane-1,2 '-bicyclo[1.1.0]butane-4',1 '-tricyclo[3.3.1.1(3,7)]decane]-1 ',3 '-dicarboxylate, a strain-enhanced bicyclo[1.1.0]butane with a very short intramolecular C-H...H-C contact

Authors
Bats, JW Bolte, M Grundl, MA Hashmi, ASK
Citation
Jw. Bats et al., Dimethyl dispiro[tricyclo[3.3.1.1(3,7)]decane-1,2 '-bicyclo[1.1.0]butane-4',1 '-tricyclo[3.3.1.1(3,7)]decane]-1 ',3 '-dicarboxylate, a strain-enhanced bicyclo[1.1.0]butane with a very short intramolecular C-H...H-C contact, ACT CRYST C, 57, 2001, pp. 441-443
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
ISSN journal
01082701 → ACNP
Volume
57
Year of publication
2001
Part
4
Pages
441 - 443
Database
ISI
SICI code
0108-2701(20010415)57:<441:DD'>2.0.ZU;2-5
Abstract
The title molecule, C26H34O4, shows a very short repulsive intramolecular C -H . . .H-C contact, with an H . . .H distance of only 1.71 Angstrom. The f lap angle phi of the bicyclo[1.1.0]butane group is widened to 131.23 (8)deg rees. Both methylene C atoms show tilt angles of 6.1 degrees. Bond lengths in the fused cyclopropane rings range from 1.501 (1) to 1.542 (1) Angstrom and are influenced by pi interactions with the carboxylate substituents.