Metallogels and silver nanoparticles generated from a series of transition metal-based coordination polymers derived from a new bis-pyridyl-bis-amide ligand and various carboxylates

Nath, Karabi ; Husain, Ahmad ; Dastidar, Parthasarathi (2015) Metallogels and silver nanoparticles generated from a series of transition metal-based coordination polymers derived from a new bis-pyridyl-bis-amide ligand and various carboxylates Crystal Growth & Design, 15 (9). pp. 4635-4645. ISSN 1528-7483

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Official URL: https://pubs.acs.org/doi/10.1021/acs.cgd.5b00911

Related URL: http://dx.doi.org/10.1021/acs.cgd.5b00911

Abstract

A new series of coordination polymers, namely, CP2 [{(H2O)Co1.5 (μ-3-bpna) 1.5(μ-btc)}·3DMF·3H2O]α, CP3 [{Cd(μ-3-bpna)(μ-hbtc)}·CH3OH·2H2O]α, CP4 [{Co(μ-3-bpna)(μ-ipa)}·DMF·2H2O]α, CP5 [{Co(μ-3-bpna)(μ-1,3-pda)}·DMF]α, CP6 [Cd(μ-3-bpna)0.5(μ-1,3-pda)]α, CP7 [(H2O)Co0.5(μ-3-bpna)0.5(μ-1,4-pda)0.5]α, and CP8 [{Zn(μ-3-bpna)(μ-oba)}·DMF·2H2O]α, has been synthesized by reacting a hydrogen-bond-functionalized bis-pyridyl ligand, namely, N′,N″-di(pyridin-3-yl)naphthalene-2,6-dicarboxamide, with various transition metal salts and different di- or tricarboxylates (as co-ligand) displaying 2D and 3D network topology and having lattice-occluded solvents in the majority of cases. A 1D coordination polymer, namely, CP1 [{Ag0.5(μ-3-bpna)}0.5·0.5BF4CH3CN]α, has also been isolated by reacting 3-bpna with AgBF4 in the absence of any carboxylate co-ligand. All of the CPs were characterized by single crystal X-ray diffraction. Interestingly, two such CPs, namely, CP1 and CP2, produced metallogels, which were characterized by rheology, transmission electron microscopy, and X-ray powder diffraction. The metallogel of CP1 produced Ag nanoparticles within the gel bed upon exposure to light.

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Deposited On:19 Apr 2018 11:42
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