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Molecular recognition: A simple dinaphthyridine receptor for urea

✍ Scribed by Shyamaprosad Goswami; Rakhi Mukherjee

Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
235 KB
Volume
38
Category
Article
ISSN
0040-4039

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✦ Synopsis

A new dinaphthyridine receptor 1 is designed that efficiently binds to urea probably by six hydrogen bonds forming a chloroform soluble I: I complex and selectively extract~ urea into chloroform from its mixture with thiourea. The receptor I has fifteen fold higher binding constant for urea than the truncated receptor 2 Ix~ssibly due to formation of greater number of hydrogen bonds in complexation.

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