Highly connected coordination polymer and preparation method thereof

A coordination polymer and high-connection technology, applied in the chemical field, can solve problems such as the inability to synthesize a coordination polymer with a high connection structure, and the large steric hindrance of an organic ligand with a low coordination number at a single metal center, achieving small steric hindrance, The product has high purity and the effect of increasing the number of connections

Inactive Publication Date: 2015-07-29
HUAIYIN TEACHERS COLLEGE
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the coordination polymer cannot be synthesized due to the influence of the low coordination number of the single metal center and the large steric hindrance of the organic ligand. Problems with High Linkage Coordination Polymers

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  • Highly connected coordination polymer and preparation method thereof
  • Highly connected coordination polymer and preparation method thereof
  • Highly connected coordination polymer and preparation method thereof

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[0024]The main infrared absorption peaks are: 3447 (m), 1609 (s), 1538 (m), 1488 (m), 1424 (s), 1368 (s), 1318 (m), 1276 (w), 1197 (w ), 1134 (m), 1040 (w), 875 (w), 820 (w), 754 (w), 700 (w), 676 (w), 616 (w), 544 (w), 519 (w ).

[0025] Elemental analysis calculated value C 35 h 18 Zn 5 N 8 o 18 : C, 36.07; H, 1.56; N, 9.61%. Found: C, 36.19; H, 1.66; N, 9.52%.

[0026] Wherein, the specific steps of the preparation method are as follows:

[0027] (1) Synthesis of multidentate nitrogen-containing ligand 3,3'-tmbpt;

[0028] (2) 3,3'-tmbpt (0.03 g, 0.1 mmol), Zn(CH 3 COO) 2 2H 2 O (0.066 g, 0.3 mmol), H 4 A mixture of btec (0.038 g, 0.15 mmol), NaOH (0.024 g, 0.6 mmol) and water (8 mL) was sealed in a Teflon-lined autoclave and heated at 120-140 °C for 3- 5 days; when the mixture was cooled to room temperature at a cooling rate of 10 °C / h, a colorless crystal of the coordination polymer was obtained with a yield of 62%.

[0029] Among them, the high-connection co...

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Abstract

The invention discloses a highly connected coordination polymer and a preparation method thereof. The highly connected coordination polymer adopts the following chemical formula: [Zn5(3,3'-tmbpt)(btec)2(OH)2], wherein betc is deprotonated 1,2,4,5-pyromellitic acid; 3,3'-tmbpt is 1-((1H-1,2,4-triazole)methyl)-3,5-bis(3-pyridyl)-1,2,4-triazole. Carboxyl groups of polycarboxylic acid anions can coordinate with metal ions to form metal clusters with larger size; the metal clusters serve as nodes, so that connections of the nodes can be greatly increased. In addition, distances among several coordinating groups of a polydentate nitrogen-containing ligand 3,3'-tmbpt is relatively large, so that steric hindrance is relatively small during coordination, and the metal clusters can further expand easily to form the coordination polymer adopting highly connected structure. The coordination polymer can serve as a broadband semiconductor material and a molecular-based light emitting material to be further developed and applied.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and in particular relates to a high-connection coordination polymer and a preparation method thereof. Background technique [0002] In recent years, coordination polymers have attracted the interest of many researchers due to their potential applications in many fields such as sensors, catalysis, nonlinear optics, magnetism, and drug delivery. Among the wide variety of coordination polymers, highly connected (the number of connections at a single node is greater than or equal to 8) coordination polymers have attracted special attention due to their strong stability and large surface area. However, the design and synthesis of highly connected coordination polymers are still challenging due to the low coordination number of single metal centers and the steric hindrance of commonly used organic ligands. In addition, most of the currently reported high-connection coordination polymers are based on...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/06C09K11/06
CPCC07F3/003C09K11/06C09K2211/1007C09K2211/1029C09K2211/1059C09K2211/188
Inventor 阚卫秋温世正
Owner HUAIYIN TEACHERS COLLEGE
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