A Double-Functionalized Cyclen with Carbamoyl and Dansyl Groups (Cyclen = 1,4,7,10-Tetraazacyclododecane): A Selective Fluorescent Probe for Y<sup>3+</sup> and La<sup>3+</sup>
作者:Shin Aoki、Hiroki Kawatani、Teruhiro Goto、Eiichi Kimura、Motoo Shiro
DOI:10.1021/ja0033786
日期:2001.2.1
titrations (excitation at 335 nm and emission at 520 nm) in aqueous solution (with I = 0.1 (NaNO(3))) and 25 degrees C. The X-ray structure analysis of the Y(3+)-H(-1)L complex showed nine-coordinated Y(3+) with four nitrogens of cyclen, three carbamoyl oxygens, and the deprotonated nitrogen and a sulfonyl oxygen of the dansylamide. The crystal data are as follow: formula C(28)H(49)N(11)O(13.5)SY (Y(3+)-H(-1)L(2)
4) 在水溶液(I = 0.1 (NaNO(3)))和 25 摄氏度下通过电位 pH 滴定和 UV 和荧光分光光度滴定(激发在 335 nm 和发射在 520 nm)确定。 X 射线结构Y(3+)-H(-1)L 复合物的分析表明,九个配位的 Y(3+) 具有四个循环氮、三个氨基甲酰基氧和丹磺酰胺的去质子化氮和磺酰基氧。晶体数据如下: 公式 C(28)H(49)N(11)O(13.5)SY (Y(3+)-H(-1)L(2) x 2(NO(3)(- )) x 2.5H(2)O), M(r) = 876.73, 单斜晶系, 空间群 P2(1)/n (No. 14), a = 18.912(3) A, b = 17.042(3) A, c = 24.318(4) A,β = 95.99(1) 度,V = 7794(2) A(3),Z = 8,R1 = 0.099。在 M(3+)-H(-1)L(2)