Crystal engineering:: Identification of a unique supramolecular synthon based on C=O•••X interaction in halogen-substituted aromatic carboxaldehydes

被引：54

作者：

Moorthy, JN ^{[1
]}

Venkatakrishnan, P

Mal, P

Dixit, S

Venugopalan, P

机构：

[1] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India

[2] Panjab Univ, Dept Chem, Chandigarh 160014, India

来源：

CRYSTAL GROWTH & DESIGN | 2003年 / 3卷 / 04期

关键词：

D O I：

10.1021/cg034001p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The well-known C=O...X interactions control the crystal packing of o-haloaromatic carboxaldehydes as revealed by the X-ray crystal structures of a set of aldehydes 2-8. The intramolecular C-H...X interaction causes the CO...X interactions to manifest in a readily recognizable pattern of association, i.e., synthon 1. The robustness of synthon 1 is amply suggested from the isostructurality exhibited by the dichloro- and dibromo-dialdehydes 3,6 and 4,7. Further, it is found that the aldehyde 2, which can exploit the C=O...Br interactions in two distinct ways crystallizes in two crystal modifications.

引用

页码：581 / 585

页数：5

共 12 条

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