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Two Temperature‐Controlled Zinc Coordination Polymers: Ionothermal Synthesis, Properties, and Dye Adsorption
Author(s) -
Wang MengMeng,
Wei Zhen,
Xu Ling,
Liu Bing,
Jiao Huan
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201701161
Subject(s) - chemistry , zinc , adsorption , hydrogen bond , deprotonation , polymer , ligand (biochemistry) , inorganic chemistry , coordination polymer , polymer chemistry , organic chemistry , ion , molecule , biochemistry , receptor
Ionothermal reactions of Zn(NO 3 ) 2 with 1,2,4,5‐benzenetetracarboxylic acid (H 4 BTeC) produced two temperature‐controlled zinc(II) coordination polymers, [PMI] 2 [Zn 2 (BTeC)(H 2 BTeC)] ( 1 ) and [PMI] 2 [Zn 3 (BTeC) 2 ] · 2H 2 O ( 2 ; PMI = 1‐methyl‐3‐propylimidazolium). The reaction temperature affects the extent of deprotonation of the H 4 BTeC ligand, leading to different structures and properties. Coordination polymers 1 and 2 show different adsorptions of Ponceau 2R (P2R): 1 strongly adsorbs P2R, whereas 2 exhibits a much weaker adsorption. This behavior can be explained by a synergistic mechanism involving hydrogen‐bonding and coulombic interactions, mainly hydrogen bonding at high concentration and coulombic interactions at low concentration of the dye.