Two Temperature‐Controlled Zinc Coordination Polymers: Ionothermal Synthesis, Properties, and Dye Adsorption

Abstract

Ionothermal reactions of Zn(NO 3 ) 2 with 1,2,4,5benzenetetracarboxylic 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-3propylimidazolium). 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 [a]

Removal of Acid Orange 7 from Aqueous Solution by Metal-Organic Frameworks

“…Bridging coordination between AO7 and Zr 6 O 4 (OH) 4 is likely due to the sulfonate terminus of AO7 binding to two neighboring zirconia in the metal cluster ( Figure S5). Based on the monodentate model, we suspected that additional hydrogen bond donors may contribute to the adsorption of AO7 [54][55][56][57][58][59]. As evidenced by Figure 2b, very weak to no hydrogen bonding occurred between the hydroxyl of AO7 and the amine of UiO-66-NH 2 .…”

Zn(ii) metal–organic architectures from ether-bridged tetracarboxylate linkers: assembly, structural variety and catalytic features

“…The Zn-O [2.018(3)-2.440(3) Å] and Zn-N [2.080(3)-2.109(3) Å] bonds are within normal values. 16,17,19 The dia 4− block acts as a μ 4 -linker (mode IV, Scheme 2) with all four COO − groups being bidentate, generating 1D double chains (Fig. 4b) with a decorated 2C1 topology (Fig.…”

“…The Zn-O [1.943(3)-2.231( 4) Å] and Zn-N [2.038(4)-2.073(3) Å] bonds are within typical values. 19,28,34 The dia 4− block functions as a μ 7 -linker (mode V, Scheme 2), in which one of the COO − groups is bidentate while the other three groups are μ-bridging bidentate. Given a multiply bridging nature of μ 7dia 4− , there is a formation of an intricate 3D metal-organic framework (Fig.…”

“…The Zn(II) coordination polymers (CPs) have been widely explored as an important family of compounds with high diversity of structures, [1][2][3][4][5][6] remarkable functional properties, [7][8][9] and applications in photochemistry, 10,11 sensing, [12][13][14][15][16] gas sorption, [17][18][19] energy storage, [20][21][22][23] and catalysis, [24][25][26][27] just to name a few. This is also governed by some features of zinc(II) ions and derived compounds, such as low cost and abundance, bio-and photoactivity, and rich coordination chemistry toward a broad spectrum of ligand types.…”