songxueqin
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- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- Name (Pinyin):songxueqin
- Date of Employment:1991-07-26
- Education Level:Postgraduate (Doctoral)
- Degree:Doctoral degree
- Status:Employed
- Teacher College:School of Chemistry and Biological Engineering
Contact Information
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- Paper Publications
A cationic tetrahedral Zn(II) cluster based on a new salicylamide imine multidentate ligand： Synthesis, structure and fluorescence sensing study
Release time:2021-05-29 Hits:
- Impact Factor:4.174
- DOI number:10.1039/C9DT01376H
- Affiliation of Author(s):兰州交通大学
- Teaching and Research Group:化学与生物工程学院301室
- Journal:Dalton Transactions
- Place of Publication:英国皇家化学会
- Funded by:国家自然科学基金
- Abstract:A monocationic ZnII tetrahedral cluster, [Zn4L3(μ3-OH)]∙NO3∙1.25H2O (Zn4L3) based on a new salicylamide imine ligand H2L, H2L =1-(2-hydroxy-3-methoxy-benzamido)-3-(2-hydroxy-3-methoxybenzylideneamino)-propane, has been prepared. Single crystal X-ray analysis reveals that the three 10 deprotonated ligand L2– chelate three Zn(II) centres with its salicylamide moiety in such a way that the three salicylimine group attached to the other side of the three chelates are converged to bind another Zn(II) centre to provide a tetrahedral cluster with two phenyl groups of the same ligand L2– being close enough to present strong intramolecular π···π stacking effect. Fluorescence studies indicate that Zn4L3 is stable in water and exhibits highly sensitive and selective recognition of phosphates against other 15 common anions including CO32–, HCO3–, NO3–, F–, Cl–, Br–, I–, HSO4–, SO42–, OAc–, BF4–, ClO4– and CF3SO3– in HEPES buffer solution (pH=7.4) + DMSO (V : V = 1 : 9). The excellent sensing capability of Zn4L3 for phosphate against other common anions with low detection limit of 0.15 uM renders it a candidate probe for phosphate detection. Furthermore, the observed fluorescence quenching responses of Zn4L3 towards phosphates were highly reversible. The possible sensing mechanisms for phosphate 20 detection of Zn4L3 was investigated by means of 1H NMR, UV-Vis spectra and high-resolution ESI-MS spectra and the results indicates that phosphates could exclusively disfigure Zn4L3 to release H2L in HEPES buffer solution (pH= 7.4) + DMSO (V : V = 1 : 9).
- Co-author:席炜,王彩云
- First Author:孟欢欢
- Indexed by:Journal paper
- Correspondence Author:songxueqin,汪力
- Discipline:Natural Science
- First-Level Discipline:Chemistry
- Document Type:J
- Issue:48
- Page Number:12326-12335
- Translation or Not:no
- Date of Publication:2019-07-13
- Included Journals:SCI
- Links to published journals:https://pubs.rsc.org/en/content/articlelanding/2019/dt/c9dt01376h/unauth#!divAbstract
