Synthesis, structural diversity and fluorescent characterisation of a series of d10 metal–organic frameworks (MOFs): reaction conditions, secondary ligand and metal effects

Three new 3D metal–organic frameworks, namely {[Zn(L)2]}n (2), {[Cu(L)3H2O]3H2O}n (4), and {[Ag(L)]3H2O}n (5) where HL = 4-[3-methyl-5-(pyridin-4-yl)-1,2,4-triazol-4-yl]benzoate, have been synthesized by reaction of the HL ligand and ZnII, CuII, and AgI salts under similar experimental conditions. By introducing the secondary ligand terephthalic acid (H2bdc), another two new compounds {[Zn1.5L2(bdc)0.5]3H2O}n (1) and {[Cu(L)(bdc)0.5H2O]}n (3) with different 3D structures were obtained. Compound 1 possesses a three-fold interpenetrating framework, with {32.42.54.62}2{32.42.56.65} topology. To the best of our knowledge, 2 is an unusual example of four-fold framework guest-free metal organic framework material. Compound 3 reveals a seven-connected ose topology; magnetic susceptibility measurements indicate that it has dominating antiferromagnetic couplings between metal centres. Photoluminescence measurements of 1, 2, and 5 in the solid state at room temperature show that all coordination networks exhibit a red shift in the emission spectra, which can be assigned to an intraligand π-π* transition.

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Topological Diversification in Metal-Organic Frameworks: Secondary Ligand and Metal Effects

European Journal of Inorganic Chemistry ◽

10.1002/ejic.200800898 ◽

2009 ◽

Vol 2009 (1) ◽

pp. 147-154 ◽

Cited By ~ 52

Author(s):

Jian-Qiang Liu ◽

Yao-Yu Wang ◽

Ya-Nan Zhang ◽

Ping Liu ◽

Qi-Zhen Shi ◽

...

Keyword(s):

Metal Organic Frameworks ◽

Metal Organic ◽

Secondary Ligand

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Interpenetrated Metal–Organic Frameworks of Cobalt(II): Structural Diversity, Selective Capture, and Conversion of CO2

Crystal Growth & Design ◽

10.1021/acs.cgd.7b00274 ◽

2017 ◽

Vol 17 (6) ◽

pp. 3295-3305 ◽

Cited By ~ 42

Author(s):

Bharat Ugale ◽

Sandeep Singh Dhankhar ◽

C. M. Nagaraja

Keyword(s):

Metal Organic Frameworks ◽

Structural Diversity ◽

Metal Organic

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Structural Diversity and Vibrational Spectra of Nine Cu(I)-Cyanide Metal–Organic Frameworks with in Situ Generated N-Heterocyclic Ligands

Crystal Growth & Design ◽

10.1021/acs.cgd.7b00967 ◽

2017 ◽

Vol 17 (12) ◽

pp. 6281-6290 ◽

Cited By ~ 13

Author(s):

Min Shao ◽

Ming-Xing Li ◽

Zhao-Xi Wang ◽

Xiang He ◽

Heng-Hua Zhang

Keyword(s):

Vibrational Spectra ◽

Metal Organic Frameworks ◽

Structural Diversity ◽

Heterocyclic Ligands ◽

Metal Organic

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Four Novel d10 Metal-Organic Frameworks Incorporating Amino-Functionalized Carboxylate Ligands: Synthesis, Structures, and Fluorescence Properties

Frontiers in Chemistry ◽

10.3389/fchem.2021.708314 ◽

2021 ◽

Vol 9 ◽

Author(s):

Wang Xie ◽

Jie Wu ◽

Xiaochun Hang ◽

Honghai Zhang ◽

Kang shen ◽

...

Keyword(s):

Metal Organic Frameworks ◽

Three Dimensional ◽

Fluorescence Properties ◽

Gravimetric Analysis ◽

X Ray Diffraction ◽

X Ray ◽

Quenching Effect ◽

D10 Metal ◽

Metal Organic ◽

Point Symbol

By employment of amino-functionalized dicarboxylate ligands to react with d10 metal ions, four novel metal-organic frameworks (MOFs) were obtained with the formula of {[Cd(BCPAB)(μ2-H2O)]}n (1), {[Cd(BDAB)]∙2H2O∙DMF}n (2), {[Zn(BDAB)(BPD)0.5(H2O)]∙2H2O}n (3) and {[Zn(BDAB)(DBPB)0.5(H2O)]∙2H2O}n (4) (H2BCPAB = 2,5-bis(p-carbonylphenyl)-1-aminobenzene; H2BDAB = 1,2-diamino-3,6-bis(4-carboxyphenyl)benzene); BPD = (4,4′-bipyridine); DBPB = (E,E-2,5-dimethoxy-1,4-bis-[2-pyridin-vinyl]-benzene; DMF = N,N-dimethylformamide). Complex 1 is a three-dimensional (3D) framework bearing seh-3,5-Pbca nets with point symbol of {4.62}{4.67.82}. Complex 2 exhibits a 4,4-connected new topology that has never been reported before with point symbol of {42.84}. Complex 3 and 4 are quite similar in structure and both have 3D supramolecular frameworks formed by 6-fold and 8-fold interpenetrated 2D coordination layers. The structures of these complexes were characterized by single crystal X-ray diffraction (SC-XRD), thermal gravimetric analysis (TGA) and powder X-ray diffraction (PXRD) measurements. In addition, the fluorescence properties and the sensing capability of 2–4 were investigated as well and the results indicated that complex 2 could function as sensor for Cu2+ and complex 3 could detect Cu2+ and Ag+via quenching effect.

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