Novel copper(II) heterochelate: synthesis, structural features and fluorescence studies
作者:G. J. Kharadi、K. D. Patel
DOI:10.1002/aoc.1652
日期:——
Fluorescence properties of four based derivatives [An] (where n = 1–4) and their Cu(II) heterochelates of the type [Cu(An)(CQ)(OH)]•xH2O where A1 = 3‐(2‐oxo‐2H‐chromen‐3‐yl)‐4H‐furo[3,2‐c]chromen‐4‐one, A2 = 8‐methyl‐3‐(2‐oxo‐2H‐chromen‐3‐yl)‐4H‐furo[3,2‐c]chromen‐4‐one, A3 = 6‐methyl‐3‐(2‐oxo‐2H‐chromen‐3‐yl)‐4H‐furo[3,2‐c]chromen‐4‐one, A4 = 8‐chloro‐3‐(2‐oxo‐2H‐chromen‐3‐yl)‐4H‐furo[3,2‐c]chromen‐4‐one
四种基于[A n ](其中n = 1-4)及其[Cu(A n)(CQ)(OH)]类型的Cu(II)杂螯合物的荧光性质• x H 2 O 其中A 1 = 3-(2-氧代-2H-chromen-3-基)-4H-呋喃[3,2-c] chromen-4-one,A 2 = 8-甲基-3-(2-氧代-2H-chromen ‐3‐yl)‐4H‐furo [3,2‐c] chromen‐4‐one,A 3 = ‐6-甲基‐‐3-(2‐oxo‐2H‐chromen‐3‐yl)‐4H‐furo [3 ,2-c] chromen-4-one,A 4 = 8-氯-3-(2-氧代-2H-chromen-3-基)-4H-呋喃[3,2-c] chromen-4-one和X= 3、2、4、1}是在室温下研究的。杂螯合物的荧光光谱显示出红移,这可能是由于配体与金属离子的螯合所致。它增强了配体接受电子的能力,并降低了电子