Metal clusters constructed by dihydrazide ligand: Synthesis, structure and magnetic properties

Liu, Dongcheng; Chen, Zilu; Huang, Wentao; Qin, Suni; Jiang, Liping; Zhou, Su-Ping; Liang, Fu‐Pei

doi:10.1016/j.ica.2013.01.035

Cited by 5 publications

(2 citation statements)

References 54 publications

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“…Obviously, Me 2 NH is produced by the hydrolysis of DMF. Similar DMF hydrolysis behavior was also observed in complex (Me 2 NH) 2 [Cu 9 (bshz) 3 (Py) 10 (C 2 H 7 N)(DMF)]·2DMF . This is why some carboxylate complexes can be prepared solvothermally in DMF solution without any basic additive recently .…”

Section: Resultssupporting

confidence: 69%

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Shen

Wang

et al. 2014

Crystal Growth & Design

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Six zinc metal–organic frameworks, namely, [Zn(bpmb)(HCOO)] n ·[Zn(bpmb)(OH)] n ·4nH2O (1), [Zn(bpmb)(HCOO)] n (2), [Zn2(bpmb)2(fum)] n ·9nH2O (3), [Zn3(bpmb)2(d-cam)2] n (4), [Zn2(bpmb)(1,3,5-btc)] n ·nDMA (5), and [Zn(bpmb)(1,2,4,5-H2btec)] n ·4nH2O (6) (Hbpmb = 3,5-bis(4-pyridylmethoxy)benzoic acid; H2fum = fumaric acid; d-H2cam = d-camphoric acid; 1,3,5-H3btc = 1,3,5-benzenetricarboxylic acid; 1,2,4,5-H4btec = 1,2,4,5-benzenetetracarboxylic acid; DMA = N,N-dimethylacetamide), were synthesized under solvothermal conditions. Their structures were characterized by EA, IR, PXRD, TG, and single-crystal XRD. Complex 1 is constructed of two independent neutral 3D MOFs with large 1D nanosized square channels, which are further entangled by each other to give an unexpected 4-fold [2 + 2] interpenetrating architecture. Complex 2 is a 3D MOF constructed from tetradentate bpmb and bidentate formate ligands, which is an isomer of the [Zn(bpmb)(HCOO)] n piece in 1. Complex 3 displays a 2D double-layered network that possesses 1D nanosized pores. Each 2D double layer is further interlocked with two neighboring ones to form an interesting 3D polycatenation array. Complex 4 possesses a 2D network constructed from a trinuclear [Zn3(COO)6N4] cluster and Zn–cam double-helical chain. Complex 5 is a 3D porous MOF constructed from tridentate bpmb and hexadentate 1,3,5-btc ligands. Complex 6 exhibits a 2-fold interpenetrating 2D wavelike (4,4) network constructed from bidentate bpmb and 1,2,4,5-H2btec ligands. The bpmb ligand adopts four types of coordination modes in 1–6. The secondary carboxylate ligands have obvious effects on their coordination architectures. Tetrahedral-, octahedral-, and trigonal-bipyramidal geometries around Zn(II) ions are observed. A general solvothermal method is proposed for preparing carboxylate complexes in DMF−H2O solution without any basic additive. In the preparation of 3, maleic acid is converted to a fumarate ligand. The thermal stabilities of six complexes and N2 adsorption behaviors of 1 and 3 are investigated. All the Zn(II) complexes emit blue luminescence originating from ligand-centered emission.

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Section: Resultssupporting

confidence: 69%

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Shen

Wang

et al. 2014

Crystal Growth & Design

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“…14 A similar DMF decomposition behavior was also observed in the complex (Me 2 NH) 2 [Cu 9 (bshz) 3 (Py) 10 (C 2 H 7 N)(DMF)]•2DMF. 15 That is why some carboxylate complexes were prepared in DMF solution without an alkaline additive in recent research. 16 In contrast with 4, the solvothermal reaction of complex 5 in ethanol without an alkaline additive afforded a 1D 2 1 helical chain structure, in which the carboxyl group remains protonated, thus restricting the extension of the architecture.…”

Section: Syntheses and Structural Diversitymentioning

confidence: 99%

Seven novel coordination polymers constructed by rigid 4-(4-carboxyphenyl)-terpyridine ligands: synthesis, structural diversity, luminescence and magnetic properties

et al. 2014

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Seven coordination polymers, namely [Mn(4-cptpy)2]n (1), [Co(4-cptpy)2]n (2), [Mn3(4-cptpy)6(H2O)]n·2nH2O (3), [Co(4-cptpy)(HCOO)(H2O)]n·nDMF (4), [Zn2(4-Hcptpy)2Cl4]n·2nC2H5OH·nH2O (5), [Co4(3-cptpy)4(HCOO)4(H2O)2]n (6), and [Mn(3-cptpy)2]n (7) (4-Hcptpy = 4-(4-carboxyphenyl)-4,2':6',4''-terpyridine; 3-Hcptpy = 4-(4-carboxyphenyl)-3,2':6',3''-terpyridine), have been synthesized under hydro(solvo)thermal conditions and structurally characterized. A general solvothermal method is proposed for preparing carboxylate complexes in DMF solution without any basic additive. 1 and 2 possess isostructural 3D metal-organic frameworks containing nanosized cavities. 3 is a beautiful 2D coordination polymer assembled by flower-like Mn3(4-cptpy)6(H2O) subunits. 4 and 6 both display 2D polymeric networks constructed from 4/3-cptpy(-) ligands, in which the formate ligands originate from the hydrolysis of DMF. 5 is a 1D 2(1) helical chain polymer. 7 shows a 2D network with a (3.6) two-nodal kgd topology. 4/3-Hcptpy ligands display seven types of coordination modes. The zinc complex 5 emits strong violet luminescence. 1 and 2 are both thermally stable below 440 °C and exhibit antiferromagnetic interactions.

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One polynuclear copper(II) complex based on salicylaldehyde phenoxyacylhydrazone: structural and magnetic studies

Chen

Liu

2014

Journal of Coordination Chemistry

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Metal clusters constructed by dihydrazide ligand: Synthesis, structure and magnetic properties

Cited by 5 publications

References 54 publications

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Unexpected 4-Fold [2 + 2] Interpenetration and Polycatenation Behaviors in Porous Luminescent Zinc Metal–Organic Frameworks Constructed from Flexible 3,5-Bis(4-pyridylmethoxy)benzoate Ligand

Seven novel coordination polymers constructed by rigid 4-(4-carboxyphenyl)-terpyridine ligands: synthesis, structural diversity, luminescence and magnetic properties

One polynuclear copper(II) complex based on salicylaldehyde phenoxyacylhydrazone: structural and magnetic studies

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