Backbone Flexibility and Counterion Effects on the Structure and Thermal Properties of Di(thiourea)zinc Dicarboxylate Coordination Polymers

Burrows, Andrew D.; Donovan, Adele S.; Harrington, Ross W.; Mahon, Mary F.

doi:10.1002/ejic.200400502

Cited by 43 publications

(25 citation statements)

References 29 publications

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“…Metal-carboxylates are particularly of high interests because they exhibit openframework structures and their carboxylate group acts as a linker between inorganic moieties [11][12][13][14][15]. Generally, two kinds of these ligands have been utilized in this field, in which the rigid ligands, such as benzenedicarboxylate and benzenetricarboxylate with special orientations may form the predictable target frameworks according to the designed strategy [16][17][18][19][20][21][22], while flexible ligands like succinic and glutaric acid may induce some unusual structures [23][24][25][26][27], in which they can adopt more types of conformations and coordination modes according to the geometric requirements of different metal ions. However, just limited work is related to polycarboxylate ligands with characteristics of both flexibility and rigidity [28,29].…”

Section: Introductionmentioning

confidence: 99%

Metal-dependent dimensionality in coordination polymers of a semi-rigid dicarboxylate ligand with additional amide groups: Syntheses, structures and luminescent properties

Duan

Zheng

Bai

et al. 2010

Inorganica Chimica Acta

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Section: Introductionmentioning

confidence: 99%

Metal-dependent dimensionality in coordination polymers of a semi-rigid dicarboxylate ligand with additional amide groups: Syntheses, structures and luminescent properties

Duan

Zheng

Bai

et al. 2010

Inorganica Chimica Acta

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“…In the field of supramolecular chemistry, great interest has been focused on the crystal engineering of coordination frameworks due to their new topologies, intriguing architectures, intertwining phenomena, and potential applications [1][2][3][4][5][6][7][8][9][10]. Studies in this field have been focused on the design and construction of novel coordination frameworks and the relationships between their structures and properties.…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of 1,3-bi(4-pyridyl)propane — 5-methyl-benzene- 1,3-dicarboxylic acid (1:1), C13H14N2 ·C9H8O4

Ma¹,

Yu²

2008

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialAn ethanol solution of 1,3-bi(4-pyridyl)propane (bpp, 0.2 mmol) was added dropwise to astirred aqueous solution (12 ml) of 5-methyl-benzene-1,3-dicarboxylic acid (0.2 mmol) at atemperature of 333 K. The reaction mixture was then filtered and the filtrate allowed to stand for about two weeks until colorless single crystals were obtained. Chemical analysis -found: C, 69.88 %; H, 5.92 %; N, 7.30 %; calculated for C 22 H 22 N 2 O 14 :C,69.83 %; H, 5.86 %; N7.40 %. DiscussionIn the field of supramolecular chemistry, great interest has been focused on the crystal engineering of coordination frameworks due to their new topologies, intriguing architectures, intertwining phenomena, and potential applications [1][2][3][4][5][6][7][8][9][10]. Studies in this field have been focused on the design and construction of novel coordination frameworks and the relationships between their structures and properties. In this context, benzenedicarboxylic acid and its derivatives (such as 1,3-benzenedicarboxylic acid, 1,4-benzenedicarboxylic acid, 5-hydroxyisophthalic acid) are widely used as building blocks to link metal ions to produce metal-organic frameworks with interesting structures and properties. Furthermore, these ligands can act as both hydrogen-bond acceptors and hydrogen-bond donors to generate supramolecular topologies. In view of this, we report the molecular assembly of 1,3-bi(4-pyridyl)propane and 5-methylisophthalic acid in order to further understand the coordination chemistry of 1,3-benzenedicarboxylic acid and its derivatives. The title crystal structure comprises a1,3-bi(4-pyridyl)propane molecule and a5 -methyl-benzene-1,3-dicarboxylic acid molecule per asymmetric unit ( figure, top). Both of the carboxylate groups of the acid are protonated. There exist intermolecular hydrogen bonds between carboxylate oxygen atoms and nitrogen atoms of bpp (d(O···N) distances: 2.6298 and 2.618(2) Å,and bond angles of ∠O−H···N are 177.9°and 175.6°, respectively). Then, an extended one-dimensional chain along [010] is formed (figure, bottom).

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“…Crystal engineering of metal-organic frameworks (MOFs) is realizable by the choice of metals and the numerous choice and design of ligands, which bears the weight of prospective applications in new chemical separation, ion exchange, and gas adsorption [1][2][3][4][5][6]. In particular, carboxylate ligands have been frequently employed in the construction of microporous inorganic/organic hybrid materials for gas storage purposes.…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of triaqua-cis-bis((2-carboxybenzene)sulfonylglycinato) zinc(II), Zn(H2O)3(C9H8NO6S)2

Ma¹,

Wu²,

Lu³

2007

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialThe mixture of ZnCl2 · 2H2O (1 mmol) and 3-(sulfonyl-glycine)-benzoic acid (2 mmol) was stirred into 15 mL aqueous solution at room temperature. Then the pH was adjusted to approximately 7 with 1 M KOH solution. And then 5 mL ethanol solution of 4,4¢-bipyridine (1 mmol) was added. The reaction mixture was then heated on a water bath for 6 h at 70°C, and then filtered. Colorless crystal were obtained from the mother liquor by slow evaporation at room temperature after 6 weeks. Experimental detailsAll hydrogen atoms were first found in the difference electron density maps, and then placed in the calculated positions. The hydrogen atoms of carboxylate group and water molecules were found from Fourier difference maps and refined freely. The remaining H atoms were refined by riding model with Ueq(H) = 1.2Ueq(C). DiscussionCrystal engineering of metal-organic frameworks (MOFs) is realizable by the choice of metals and the numerous choice and design of ligands, which bears the weight of prospective applications in new chemical separation, ion exchange, and gas adsorption [1][2][3][4][5][6]. In particular, carboxylate ligands have been frequently employed in the construction of microporous inorganic/organic hybrid materials for gas storage purposes. In this context, benzenedicarboxylic acid and their derivatives (such as 1,3-benzenedicarboxylic acid, 1,4-benzenedicarboxylic acid or 5-hydroxyisophtalic acid) are widely used as building blocks to link metal ions to produce interesting metal-organic framework structures and properties [7][8][9][10]. However, much fewer studies on coordination chemistry of flexible carboxylate-containing ligands have been carried out. On the other hand, the main strategies used in the field of crystal engineering are basically on the use of either conventional coordinative bonds or weak interactions. Among the non-covalent interactions, hydrogen bonding interactions play important role in designing superstructures and have attracted much interest due to their relative strength and directionality [11][12]. 3-(Sulfonyl-glycine)benzoic acid can act not only as hydrogen bond acceptors but also as hydrogen bond donors, which make it a wonderful candidate for the construction of supramolecular networks. The crystal structure consists of the mononuclear molecules. The coordinating 3-(sulfonyl-glycine)benzoic acid exists as a monoanion acting as a monodentate ligand. In the complex, zinc atom is five-coordinated in a distorted trigonal-bipyramidal ZnO5 environment, in which the basal coordination sites are occupied by three oxygen atoms (O1, O1A, O7), with the bond lengths of 1.968(1) Å, 1.968(1) Å and 2.071(3) Å, respectively. The axial position is occupied by two oxygen atoms (O8, O8A) from water molecules, with the bond lengths of both 2.076(2) Å. There exist intermolecular hydrogen bonds between carboxylate oxygen atoms from C 6H5COO group (O···O distances of 2.635 Å), forming 1D hydrogen bonded chains in which six-membered-ring and mononuclear units are alternately arranged a...

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Backbone Flexibility and Counterion Effects on the Structure and Thermal Properties of Di(thiourea)zinc Dicarboxylate Coordination Polymers

Cited by 43 publications

References 29 publications

Metal-dependent dimensionality in coordination polymers of a semi-rigid dicarboxylate ligand with additional amide groups: Syntheses, structures and luminescent properties

Metal-dependent dimensionality in coordination polymers of a semi-rigid dicarboxylate ligand with additional amide groups: Syntheses, structures and luminescent properties

Crystal structure of 1,3-bi(4-pyridyl)propane — 5-methyl-benzene- 1,3-dicarboxylic acid (1:1), C13H14N2 ·C9H8O4

Crystal structure of triaqua-cis-bis((2-carboxybenzene)sulfonylglycinato) zinc(II), Zn(H2O)3(C9H8NO6S)2

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