期刊
INORGANIC CHEMISTRY
卷 53, 期 10, 页码 4944-4955出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic403149b
关键词
-
资金
- Council of Scientific and Industrial Research, New Delhi, India [HRDG 01 (2361/10/EMR-II)]
- Department of Science and Technology, New Delhi, India [IFA12-CH-66]
- University Grants Commission, New Delhi, India [R/Dev./Sch.(UGC-JRF-SRF)/S-01:29.2.29]
The syntheses of a new Schiff base, diethyl-5-(2-hydroxybenzylidene)aminoisophthalate (HL), and a copper complex, [Cu(L-2)] (1), imparting L, have been described. Both the ligand HL and complex 1 have been thoroughly characterized by elemental analyses, electrospray ionization mass spectrometry, FT-IR, NMR (H-1 and C-13), electronic absorption, and emission spectral studies and their structures determined by X-ray single-crystal analyses. Distinctive chemodosimetric behavior of HL and 1 toward Hg2+ has been established by UV/vis, emission, and mass spectral studies. Comparative studies further revealed that the chemodosimetric response solely originates from selective hydrolysis of the aldimine moiety over the ester group and 1 exhibited greater selectivity toward Hg2+ relative to HL while the sensitivity order is reversed. Further, these followed different hydrolytic pathways but ended up with the same product analyzed for diethyl-5-aminoisophthalate (DEA). Hg2+-induced displacement of Cu2+ and subsequent hydrolysis of the -HC=N-moiety in 1 affirmed the identity of the actual species undergoing hydrolysis as HL. The occurrence of Cu2+ displacement and Hg2+ detection via hydrolytic transformation has been supported by various physicochemical studies.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据