摘要
研究了在十二烷基硫酸钠(NaLS)存在下具有如2-(6-溴-2-苯并噻唑偶氮)-5-二乙氨基酚(Br-BTAE)基本结构的一系列有机染料同过渡金属离子 Co(Ⅱ)、Ni(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ)、Hg(Ⅱ)形成的三元配合物的吸收光谱的本性.结果表明,在 pH 8～11范围内形成组成为1∶2∶2或1∶2∶4的三元配合物.最大吸收波长510～560nm.当苯环的对位有电负性大的取代基-甲氨基或乙氨基时,更具优良的光度性能.
The absorption spectra of ternary coordina-tion compounds of a series of dyes having thesame basic structure of 2-(6-bromo-2-benzo-hiazolylazo)-5-diethylaminophenol(Br-BTAE)with transition metal ions Co(Ⅱ),Ni(Ⅱ),Zn(Ⅱ),Cd(Ⅱ),Hg(Ⅱ)in the presence of sodiumlauryl sulphate(NaLS)have been studied.It isshown that ternary coordination compoundsare formed in which the molar ratio of M:L:LS-is 1:2:2 or 1:2:4 in the pH range of8～11,and they have maximum absorbance inthe wavelength range of 510～560 nm.Whensubstituents of greater electronegativity occuron the para position of benzene ring suchas methylamino or ethylamino,the photometricproperty of the reagents is better than thatwithout these substituents.
出处
《化学试剂》
CAS
CSCD
北大核心
1989年第5期260-266,共7页
Chemical Reagents
