Diorganotin(IV) dithiocarbamate complexes as chromogenic sensors of anion binding
作者:Juan Pablo Fuentes-Martínez、Isaim Toledo-Martínez、Perla Román-Bravo、Patricia García y García、Carolina Godoy-Alcántar、Marcela López-Cardoso、Hugo Morales-Rojas
DOI:10.1016/j.poly.2009.09.010
日期:2009.12
in solution. The stability of these chlorodiphenyltin(IV) dithiocarbamate complexes in the presence of biologically relevant anions such as acetate, dicarboxylates of general formula −OOC-(CH2)n-COO− (n = 2–8), dihydrogenphosphate, hydrogensulfate, and halides has been examined in acetonitrile solutions. For all of these organotin(IV) complexes the displacement of the coordinated ligands (i.e., chloride
一种双核chlorodiphenyltin(IV)二硫代氨基甲酸配合物(1)和通式博士四个单核配合物2的Sn(S 2 CNR)氯(2,3,5,和6)已经被合成和表征无论是在固态和溶液。对于复合物的X射线结构1,3和6证实锡原子,其中二硫代氨基甲酸不对称配位体的螯合物的金属中心的五配位几何构周围。如119所示在Sn NMR光谱学中,固态观察到的五配位几何保留在溶液中。这些chlorodiphenyltin(IV)二硫代氨基甲酸配合物在生物学相关的阴离子,如醋酸盐,通式的二羧酸的存在下的稳定性- OOC-(CH 2)ñ -COO - (Ñ = 2-8),磷酸二氢盐,硫酸氢盐,和卤化物已在乙腈溶液中进行了检查。对于所有这些有机锡(IV)配合物,配位体的位移(即,氯离子和二硫代氨基甲酸酯)是在单阴离子(例如乙酸根,磷酸二氢根,硫酸氢根和氟离子)的存在下发生的。基于UV-Vis,1 H,13 C和119