Syntheses and Crystal Structures of a Series of Zn(II)/Cd(II) Coordination Polymers Constructed from a Flexible 6,6′-Dithiodinicotinic Acid

Zhang, Yanan; Liu, Ping; Wang, Yao‐Yu; Wu, Lei; Pang, Lingyan; Shi, Qi‐Zhen

doi:10.1021/cg101433t

Cited by 54 publications

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“…To date, there are only two examples of MOFs where zinc SBUs are connected by tritopic organic linkers. [46][47][48] The solventa ccessible volumeo fIPCE-1Ni,c alculated using PLATON, [49] is 32.9 %a nd represented by well-defined1 Do pen channels runninga long the c axis (Figure 1a,S 10). The pore limiting diameter calculated using Voronoi decomposition is 6.52 ,a nd the largestc avity diameter is 8.36 for the empty framework.…”

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confidence: 99%

Highly Proton‐Conductive Zinc Metal‐Organic Framework Based On Nickel(II) Porphyrinylphosphonate

Enakieva

Sinelshchikova

Grigoriev

et al. 2019

Chemistry A European J

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The design of new solid‐state proton‐conducting materials is a great challenge for chemistry and materials science. Herein, a new anionic porphyrinylphosphonate‐based MOF (IPCE‐1Ni), which involves dimethylammonium (DMA) cations for charge compensation, is reported. As a result of its unique structure, IPCE‐1Ni exhibits one of the highest value of the proton conductivity among reported proton‐conducting MOF materials based on porphyrins (1.55×10−3 S cm−1 at 75 °C and 80 % relative humidity).

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confidence: 99%

Highly Proton‐Conductive Zinc Metal‐Organic Framework Based On Nickel(II) Porphyrinylphosphonate

Enakieva

Sinelshchikova

Grigoriev

et al. 2019

Chemistry A European J

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“…The above structural analyses show that although the same starting raw materials are used to synthesize the products of 1 and 2 , the different preparation methods give rise to the entirely different motifs of them. This phenomenon could be explained as follows: (1) Cd 2+ ion is a typical soft acid with large radius (0.95 Å), which may provide the abundant coordination space and various coordination numbers; (2) H 4 ttac possesses four carboxylic groups, whether all the carboxylic groups are deprotonated or not, and what coordination mode does the carboxylic group adopt will largely define the final structure; (3) the reaction temperature, pressure and raw material concentration which greatly affect the deprotonating degree, coordination directions and the coordination number of Cd 2+ , will aggravate the structural differences together …”

Section: Resultsmentioning

confidence: 99%

The Quantitative Evaluations of the Luminescent Sensing Ability to Cu²⁺ Based on Two Homologous Crystalline Coordination Polymers

et al. 2016

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A systematic study has been well conducted on two new homologous Cd(II)‐based luminescent coordination polymers (LCPs), [Cd3(Httac)2(H2O)8]⋅(H2O)2 (1) and [Cd2(ttac)(H2O)6]⋅(H2O)6 (2), (H4ttac=1,1′,2′,1′′‐terphenyl‐4,4′,4′′,5′‐tetracarboxylic acid), to explore their sensing mechanisms to Cu2+. Both 1 and 2 are able to respond to Cu(NO3)2 through luminescent quenching but with the distinct quenching modes. The Stern‐Volmer curves of 1 and 2 both deviate from the linearity, indicating the coexistence of the dynamic and static quenching. Concentration‐dependent lifetime experiments have been carried out carefully to confirm the dynamic quenching and to calculate the dynamic constants quenching Kc; the static quenching is supported by time‐dependent intensity measurements where the intensities of 1 decrease along with time, while for 2, it's a constant in time; the corresponding constants Ks have also been obtained, thus achieving the quantitative evaluations of quenching processes. More importantly, the relationships between the sensing efficiency and inherent structures of two LCPs have been discussed, and the promotion suggestions have also been given finally.

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“…The design and synthesis of metal-organic frameworks (MOFs) have attracted considerable attention because of their potential applications as functional materials as well as their structural diversity and intriguing variety of topologies [1][2][3][4][5][6][7]. It is well known that carboxylate ligands play an important role in coordination chemistry, which may adopt diverse binding modes such as monodentate, chelating, and bridging in the syn-syn, syn-anti, and anti-anti configurations [8][9].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of catena-poly[(4-bromoisophthalato-κ2O:O')-[1,1'-(1,3- propanediyl)bis(benzimidazole-κ2N:N')cobalt(II)], C25H19BrCoN4O4

Wang

Zhang

2015

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialThe title compound was prepared under the hydrothermal conditions. A mixture of 4-bromoisophthalate (4-Br-H 2 ip, 0.1 mmol), 1,1'-(1,3-propanediyl)bis(benzimidazole) (pbbm, 0.1 mmol) and Co(OAc) 2 ×4H 2 O (0.1 mmol) in distilled water (15 mL) was stirred for 30 min, and the pH value of the solution was adjusted to about 4 with 1 M KOH. After stirring for another 30 min, the mixture was transferred to a 25 mL Teflon-lined stainless steel vessel and heated at 120°C for 3 days. Then the reaction system was cooled to room temperature over 24 h, and red block crystals were obtained. DiscussionThe design and synthesis of metal-organic frameworks (MOFs) have attracted considerable attention because of their potential applications as functional materials as well as their structural diversity and intriguing variety of topologies [1][2][3][4][5][6][7]. It is well known that carboxylate ligands play an important role in coordination chemistry, which may adopt diverse binding modes such as monodentate, chelating, and bridging in the syn-syn, syn-anti, and anti-anti configurations [8][9]. On the other hand, the flexible bis(N-containing heterocyclic ring) ligands containing 1-or 2-substituted tetrazole, 1-substituted imidazole, benzimidazole, benzotriazole or 1,2,3-triazole, and 1-or 4-substituted 1,2,4-triazole rings tethered by an alkyl spacer have been extensively used [10][11]. In this paper, we select 4-bromoisophthalate (4-Br-H 2 ip) and 1,1'-(1,3-propanediyl)bis(benzimidazole) (pbbm) to react with Co(II) ions to obtain a new MOF. The asymmetric unit of the title structure consists of a Co(II) ion, a 4-Br-ip ligand, and a pbbm ligand (figure, top). The Co(II) ion adopts a distorted tetrahedral coordination geometry, coordinating to two carboxylic O atoms from two 4-Br-ip ligands (Co1-O1 = 1.929(3) Å and Co1-O3A = 1.950(3) Å) and two N atoms from two pbbm ligands (Co1-N1 = 2.014(3) Å and Co1-N4A = 2.034(3) Å). The title complex displays an interesting infinite 1D looped chains structure composed of two kinds of rings, the 16-membered ring and the 20-membered ring (figure, bottom). The 16-membered ring is formed by two 4-Br-ip ligands bridging two Co(II) ions and the Co(II)×××Co(II) distance is 6.903 Å. The 20-membered ring is made up of two pbbm ligands bridging two Co(II) ions and the Co(II)×××Co(II) distance is 10.206 Å. The two rings are connected alternately via Co(II) ions forming an infinite 1-D chain. Moreover, the adjacent looped chains are linked through hydrogen bonds by weak intermolecular C-H×××O hydrogen bonds to generate a three-dimensional network. The bond lengths and angles of these weak hydrogen bonding parametres are in the range of 3.278(6) -3.345(6) Å and 142-174°, respectively. The pbbm ligand adopts a bidentate-bridging conformation mode with the dihedral angle between the two benzimidazole rings of 62.94°.

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Syntheses and Crystal Structures of a Series of Zn(II)/Cd(II) Coordination Polymers Constructed from a Flexible 6,6′-Dithiodinicotinic Acid

Cited by 54 publications

References 94 publications

Highly Proton‐Conductive Zinc Metal‐Organic Framework Based On Nickel(II) Porphyrinylphosphonate

Highly Proton‐Conductive Zinc Metal‐Organic Framework Based On Nickel(II) Porphyrinylphosphonate

The Quantitative Evaluations of the Luminescent Sensing Ability to Cu²⁺ Based on Two Homologous Crystalline Coordination Polymers

Crystal structure of catena-poly[(4-bromoisophthalato-κ2O:O')-[1,1'-(1,3- propanediyl)bis(benzimidazole-κ2N:N')cobalt(II)], C25H19BrCoN4O4

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Syntheses and Crystal Structures of a Series of Zn(II)/Cd(II) Coordination Polymers Constructed from a Flexible 6,6′-Dithiodinicotinic Acid

Cited by 54 publications

References 94 publications

Highly Proton‐Conductive Zinc Metal‐Organic Framework Based On Nickel(II) Porphyrinylphosphonate

Highly Proton‐Conductive Zinc Metal‐Organic Framework Based On Nickel(II) Porphyrinylphosphonate

The Quantitative Evaluations of the Luminescent Sensing Ability to Cu2+ Based on Two Homologous Crystalline Coordination Polymers

Crystal structure of catena-poly[(4-bromoisophthalato-κ2O:O')-[1,1'-(1,3- propanediyl)bis(benzimidazole-κ2N:N')cobalt(II)], C25H19BrCoN4O4

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The Quantitative Evaluations of the Luminescent Sensing Ability to Cu²⁺ Based on Two Homologous Crystalline Coordination Polymers