Santonic acid:: catemeric hydrogen bonding in a γ,ε-diketocarboxylic acid

被引：26

作者：

Brunskill, APJ ^{[1
]}

Thompson, HW ^{[1
]}

Lalancette, RA ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Chem, Carl A Olson Mem Labs, Newark, NJ 07102 USA

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1999年 / 55卷

关键词：

D O I：

10.1107/S0108270198014231

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title compound, (-)-2,3,3a,4,5,6,7,7a-octahydro-alpha,3a,5-trimethyl-6,8-dioxo-1, 4-methano-1H-indene-1-acetic acid (C15H20O4), exists in the solid state as a catemer, with the hydrogen bonding following a 2(1) screw axis from the carboxyl to the a-ketone of a neighboring molecule [O ... O = 2.752(3) Angstrom]. Two parallel counterdirectional screw-related single-strand helices pass through the cell in the a direction. Four intermolecular C=O ... H-C close contacts were found, involving all three carbonyl groups.

引用

页码：566 / 568

页数：3

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