Tetrahedron

Near-IR region absorbing 1, 4-diaminoanthracene-9, 10-dione motif based ratiometric chemosensors for Cu 2+

N Kaur, S Kumar

Index: Kaur, Navneet; Kumar, Subodh Tetrahedron, 2008 , vol. 64, # 14 p. 3168 - 3175

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Citation Number: 24

Abstract

1, 4-Bis [2-aminoethylamino] anthracene-9, 10-diones selectively bind with Cu2+ to form complexes with unusual selectivity under basic conditions. The deprotonation of the aryl amine NH in the case of these chemosensors causes a bathochromic shift in the absorption band from 585nm and 635nm to 725nm and enables ratiometric estimation of Cu2+ between pH 8 and 12.