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Uncoordinated‐substituents‐induced zinc(II) coordination polymers exhibiting multifunctional fluorescent sensing activity for cations, anions and organochlorine pesticides
Author(s) -
Chi Jie,
Zhong Baoqi,
Li Yan,
Shao Pengpeng,
Liu Guocheng,
Gao Qiang,
Chen Baokuan
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202100049
Subject(s) - chemistry , fluorescence , zinc , isophthalic acid , ligand (biochemistry) , naphthalene , hydrothermal circulation , polymer , medicinal chemistry , metal , coordination polymer , stereochemistry , crystallography , organic chemistry , receptor , biochemistry , physics , quantum mechanics , seismology , polyester , terephthalic acid , geology
In order to explore the influence of carboxylic acid substituents on the structures and properties of coordination polymers, three new coordination polymers (CPs) of [Zn 2 ( L ) 2 (IP) 2 ] ( 1 ), [Zn( L )(HIP)] ⋅ 3H 2 O ( 2 ) and [Zn( L )(NIP)] ⋅ H 2 O ( 3 ) [H 2 IP=isophthalic acid, H 2 HIP=5‐hydroxyisophthalic acid, H 2 NIP=5‐nitroisophthalic acid] were designed and synthesized under hydrothermal conditions with a multi‐torsion‐centered N‐donor ligand of N,N′‐bis(4‐methylenepyridin‐4‐yl)‐1,4‐naphthalene dicarboxamide ( L ). All three CPs have similar 4,4‐connected two‐dimensional structures exhibiting different structural details, which is induced by uncoordinated‐substituents and discussed systematically. The title CPs 1 and 2 show multi‐functional fluorescent responses towards metal ion (Fe 3+ ), anions (MnO 4 − , CrO 4 2− and Cr 2 O 7 2− ) and pesticide (2,6‐dichloro‐4‐nitroaniline). The corresponding detection limits are 6.1×10 −5 M −1 , 3.7×10 −4 M −1 , 5.5×10 −4 M −1 , 3.0×10 −4 M −1 and 6.7×10 −5 M −1 for CP 1 , 2.8×10 −5 M −1 , 4.1×10 −4 M −1 , 3.0×10 −4 M −1 , 4.1×10 −4 and 2.8×10 −5 M −1 for CP 2 .