Two Temperature‐Controlled Zinc Coordination Polymers: Ionothermal Synthesis, Properties, and Dye Adsorption. Issue 7 (13th February 2018)

• Record Type: Journal Article
• Authors: Wang, Meng‐Meng; Wei, Zhen; Xu, Ling; Liu, Bing; Jiao, Huan
• Is Part Of: European journal of inorganic chemistry. Issue 7(2018)
• Page Start: 932
• Page End: 939
• Publication Date: 2018-02-13
• Subjects: Dyes/Pigments -- Adsorption -- Coordination polymers -- Ionothermal reactions -- Zinc -- X‐ray diffraction; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201701161
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : Ionothermal reactions of Zn(NO3 )2 with 1, 2, 4, 5‐benzenetetracarboxylic acid (H4 BTeC) produced two temperature‐controlled zinc(II) coordination polymers, [PMI]2 [Zn2 (BTeC)(H2 BTeC)] (1 ) and [PMI]2 [Zn3 (BTeC)2 ]· 2H2 O (2 ; PMI = 1‐methyl‐3‐propylimidazolium). The reaction temperature affects the extent of deprotonation of the H4 BTeC ligand, leading to different structures and properties. Coordination polymers1 and2 show different adsorptions of Ponceau 2R (P2R):1 strongly adsorbs P2R, whereas2 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. Abstract : Ionothermal reactions of Zn(NO3 )2 with 1, 2, 4, 5‐benzenetetracarboxylic acid (H4 BTeC) produced two 3D temperature‐controlled coordination polymers, [PMI]2 [Zn2 (BTeC)(H2 BTeC)] (1, PMI = 1‐methyl‐3‐propylimidazolium) and [PMI]2 [Zn3 (BTeC)2 ]· 2H2 O (2 ). Coordination polymer1, the main product obtained at 120 °C, strongly adsorbs Ponceau 2R, whereas2, the controlled product above 170 °C, adsorbs Ponceau 2R much more weakly.