UNUSUAL BEHAVIOR OF 7-DIETHYLAMINO-3-(3,4-ETHYLENDIOXYBENZOYL)COUMARIN TOWARDS GROUP IIA CATIONS - A POTENTIAL PHOTOACTIVE PROBE FOR MAGNESIUM

Authors
BRUNET E ALONSO MT JUANES O SEDANO R RODRIGUEZUBIS JC
Citation
E. Brunet et al., UNUSUAL BEHAVIOR OF 7-DIETHYLAMINO-3-(3,4-ETHYLENDIOXYBENZOYL)COUMARIN TOWARDS GROUP IIA CATIONS - A POTENTIAL PHOTOACTIVE PROBE FOR MAGNESIUM, Tetrahedron letters, 38(25), 1997, pp. 4459-4462
Citations number
7
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
38
Issue
25
Year of publication
1997
Pages
4459 - 4462
Database
ISI
SICI code
0040-4039(1997)38:25<4459:UBO7>2.0.ZU;2-B
Abstract
The titled compound showed, upon spectrophotometric titrations with Gr oup IIA cations, a spectacular bathochromic shift (ca. 50 nm) with Mg2 + but not with the other cations. This result is understood in terms o f internal charge-transfer species expressly favored by Et2N and ArCO substituents and best matching of ionic diameter and charge density of Mg2+. This finding may lead to new simple photoactive probes. (C) 199 7 Elsevier Science Ltd.