Two Coordination Polymers based on a Flexible Tritopic Pyridyldicarboxylate Ligand: Structures and Magnetic Properties

Liu, Yongliang; Chen, Fengying; Di, Yanqing; Cao, Jie; Di, You-Ying; Zhang, Chunsheng

doi:10.1002/zaac.201500759

Cited by 5 publications

(3 citation statements)

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“…By combining our recent research directions in the areas of (i) hydrothermal synthesis of functional coordination polymers − and (ii) oxidation catalysis, − herein we focused our attention on two poorly explored pyridine-(di/tri)carboxylic acids (Scheme ), namely, H 2 cpna (5-(4-carboxyphenoxy)nicotinic acid) and H 3 dppa (5-(3,4-dicarboxylphenyl)picolinic acid). ,− Along with optional N , N -type mediators of crystallization (co-ligands), these carboxylic acids were probed as main organic blocks (Scheme ) for hydrothermal synthesis of new cobalt(II) CPs. Besides, considering that these ligands (H 2 cpna and H 3 dppa) comprise two types of principal functional groups (pyridine and carboxylate), it was also interesting to investigate the catalytic behavior of respective cobalt(II) compounds toward the oxidation of alcohols.…”

Section: Introductionmentioning

confidence: 99%

Cobalt(II) Coordination Polymers Assembled from Unexplored Pyridine-Carboxylic Acids: Structural Diversity and Catalytic Oxidation of Alcohols

et al. 2019

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New coordination polymers of cobalt(II), namely, [Co(μ 4 -cpna)- 4), have been generated under hydrothermal conditions from CoCl 2 •6H 2 O, two different multifunctional pyridine-carboxylic acids {H 2 cpna: 5-(4-carboxyphenoxy)nicotinic acid; H 3 dppa: 5-(3,4-dicarboxylphenyl)picolinic acid}, and optional N,N-supporting ligands {phen: 1,10-phenanthroline; 4,4′-bipy: 4,4′-bipyridine} acting as mediators of crystallization. These Co(II) coordination polymers (CPs) have been obtained as stable crystalline materials and characterized by conventional solid-state techniques, including X-ray crystallography. The obtained products are 3D metal−organic frameworks (MOFs 1 and 4) or 2D coordination polymers (CPs 2 and 3). Analysis of the topologies of simplified nets has revealed the sra (1), fes (2), and 3,4L13 (3) networks, in addition to a very complex topologically unique framework in 4. An observed diversity of structures is driven by types of carboxylate building blocks and crystallization mediators. Thermal stability and magnetic and catalytic properties of 1−4 have also been studied. In fact, the Co(II) compounds act as heterogeneous catalysts for the oxidation of alcohols with tBuOOH (tert-butylhydroperoxide) under mild conditions. Compound 2 features a good catalytic activity (up to 45% yield) in the oxidation of 1-indanol to 1-indanone. Finally, products 1−4 broaden a still very small number of CPs or MOFs driven by the present type of multifunctional pyridine-carboxylic acids (H 2 cpna, H 2 dppa).

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Section: Introductionmentioning

confidence: 99%

Cobalt(II) Coordination Polymers Assembled from Unexplored Pyridine-Carboxylic Acids: Structural Diversity and Catalytic Oxidation of Alcohols

et al. 2019

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“…Among ligands, nitrogen heterocyclic molecules and carboxylate ligands have been used widely to synthesize metal complexes because of their various coordination models [17][18][19][20]. Aiming to investigate the structure and fluorescent properties, a new Zn(II) complex, [ZnL 2 (H 2 O) 4 ]·2H 2 O (1) (HL = N-nicotinoylglycine), has been synthesized by Zn(OAc) 2 ·2H 2 O with N-nicotinoylglycine in 95% ethanol solution.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Crystal Structure, and Fluorescent Property of a Zn(II) Complex with N-Nicotinoylglycine Ligand

Zhang¹

2017

Crystals

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Abstract:A new Zn(II) complex, [ZnL 2 (H 2 O) 4 ]·2H 2 O (1) (HL = N-nicotinoylglycine), was synthesized by Zn(OAc) 2 ·2H 2 O with N-nicotinoylglycine in 95% ethanol solution. Its structure has been determined by single-crystal X-ray diffraction, elemental analysis, and infrared spectrum. The crystal analysis show that complex 1 crystallizes in triclinic, space group P1. The Zn(II) ion, located on an inversion center, is coordinated by two N-nicotinoylglycine ligands through pyridine nitrogen and four water molecules. The crystal packing indicates 1D polymeric chains which expand into a 3D network structure by hydrogen bonds and π···π stacking. The luminescent properties of Zn(II) complex in solid state and in ethanol have also been investigated.

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“…Many studies show that the metal-organic coordination polymer materials have attracted wide interests among chemists because of their structural diversities and potential applications in many fields such as antitumor and antibacterial activities [1][2][3][4][5], luminescent properties [6][7][8][9], catalytic activities [10][11][12], magnetic proper-ties [13][14][15][16], DNA-binding properties [17,18], and gas adsorption [19,20], and so on.…”

Section: Introductionmentioning

confidence: 99%

Crystal Structure and Catalytic Activity of A Novel Cd(II) Coordination Polymer Formed by Dicarboxylic Ligand

Ji¹,

Li²

2017

Bull. Chem. React. Eng. Catal.

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A new Cd(II) coordination polymer, {[Cd3(L)2(DMF)2(H2O)2]·H2O}n (H2L = 1,3-bisbenzyl-2-imidazolidine-4,5-dicarboxylic acid) was synthesized by one-pot synthesis method from 1,3-bisbenzyl-2-imidazolidine-4,5-dicarboxylic acid, NaOH, DMF, and Cd(NO3)2·4H2O. Its structure was determined by elemental analysis and single crystal X-ray diffraction. Structural analysis shows that three Cd(II) ions are all six-coordinated with four oxygen atoms of four 1,3-bisbenzyl-2-imidazolidine-4,5-dicarboxylate ligands and two O atoms from two DMF molecules (Cd1) or two oxygen atoms of two coordinated H2O molecules (Cd2 and Cd3) to form an octahedral coordination geometry. The Cd(II) coordination polymer displays a 1D chained structure by the bridging carboxylate groups from 1,3-bisbenzyl-2-imidazolidine-4,5-dicarboxylate ligands. The conversion of benzaldehyde is 90.9%, which is 40~50% higher than those of the other three aldehydes (4-methylbenzaldehyde, p-methoxybenzaldehyde and 3-chlorobenzaldehyde), so the Cd(II) coordination polymer catalyst shows better catalytic activity for the coupling reaction of benzaldehyde, phenylacetylene, and piperidine than the other three aldehydes. Copyright © 2018 BCREC Group. All rights reservedReceived: 25th April 2017; Revised: 11st September 2017; Accepted: 1st November 2017; Available online: 11st June 2018; Published regularly: 1st August 2018How to Cite: Ji, Z.X., Li, P.F. (2018). Crystal Structure and Catalytic Activity of A Novel Cd(II) Coordination Polymer Formed by Dicarboxylic Ligand. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (2): 220-226 (doi:10.9767/bcrec.13.2.1178.220-226)

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Two Coordination Polymers based on a Flexible Tritopic Pyridyldicarboxylate Ligand: Structures and Magnetic Properties

Abstract: were synthesized by using a tritopic ligand 5-(4Ј-carboxylphenoxy)nicotinic acid (H 2 L). The structural analysis shows that compound 1 exhibits a ten-connected three-dimensional (3D) architecture with the point symbol 312 .4 26 .5 7 , 2 displays

Cited by 5 publications

References 27 publications

Cobalt(II) Coordination Polymers Assembled from Unexplored Pyridine-Carboxylic Acids: Structural Diversity and Catalytic Oxidation of Alcohols

Cobalt(II) Coordination Polymers Assembled from Unexplored Pyridine-Carboxylic Acids: Structural Diversity and Catalytic Oxidation of Alcohols

Synthesis, Crystal Structure, and Fluorescent Property of a Zn(II) Complex with N-Nicotinoylglycine Ligand

Crystal Structure and Catalytic Activity of A Novel Cd(II) Coordination Polymer Formed by Dicarboxylic Ligand

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