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Preparation of Macrometallocycle and Selective Sensor for Copper Ion.

ABSTRACT: Two bis-imidazolium salts 1,8-bis[2'-(N-R-imidazoliumyl)acetylamino]naphthalene chloride (L¹H₄·Cl₂: R?=?Et; L²H₄·Cl₂: R?=?ⁿBu), as well as their four NHC metal complexes [L¹H₂Ag]Cl (1), [L¹Ni] (2), [L²Ni] (3) and [L¹H₂Hg(HgCl₄)] (4) have been synthesized. In each of the cationic moieties of complexes 1 or 4, there is a groove-like 14-membered macrometallocycle, and each macrometallocycle is consisted of one biscarbene ligand L¹H₂ and one metal ion (silver(I) ion for 1 and mercury(II) ion for 4). Three 6-membered cycles are contained in each molecule of complexes 2 or 3. Additionally, the selective recognition of macrometallocycle 1 for Cu²⁺ was studied with the methods of fluorescence and ultraviolet spectroscopy, ¹H NMR titrations, MS and IR spectra. The experimental results display macrometallocycle 1 can discriminate Cu²⁺ from other cations effectively.

SUBMITTER: Liu Y

PROVIDER: S-EPMC6053464 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

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Preparation of Macrometallocycle and Selective Sensor for Copper Ion.

Liu Yingjie Y Zhao Zhixiang Z Liu Qingxiang Q

Scientific reports 20180719 1

Two bis-imidazolium salts 1,8-bis[2'-(N-R-imidazoliumyl)acetylamino]naphthalene chloride (L1H4·Cl2: R = Et; L2H4·Cl2: R = nBu), as well as their four NHC metal complexes [L1H2Ag]Cl (1), [L1Ni] (2), [L2Ni] (3) and [L1H2Hg(HgCl4)] (4) have been synthesized. In each of the cationic moieties of complexes 1 or 4, there is a groove-like 14-membered m ...[more]

PMID: 30026519

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