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US 12,492,190 B2Granted
Polydentate organic ligand, metallo-supramolecular polymer, polymer film and preparation method thereof
AssigneeJilin University
InventorsHongwei Zhou, Yuqi Wu, Daming Wang, Bing Cong, Xiaogang Zhao, Chunhai Chen
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Abstract
A polydentate organic ligand has a triphenylamine-pyridine substituted triazole structure with the structural formula I. The polydentate organic ligand having the triphenylamine-pyridine substituted triazole structure and the metal ion are coordinated and driven to synthesize a series of metallo-supramolecular polymers, and the prepared metallo-supramolecular polymers have stable electroactivity, rapid color-switching speeds, and excellent electrochromic performance.
Claims6
A preparation method of a polydentate organic ligand, comprising:
- step 1) under an alkaline condition, performing an Ullmann reaction with bis(4-bromophenyl)amine and an iodobenzene compound, catalyzed by cuprous iodide and 1,10-phenanthroline, to obtain a compound A;
- step 2) under an alkaline condition, performing a Suzuki reaction with the compound A and bis(pinacolto) borane, catalyzed by [1,1′-bis(diphenylphosphino) ferrocene]dichloropalladium (II), to obtain a compound B;
- step 3) under an alkaline condition, performing a Suzuki reaction with the compound B and 2,6-dibromo-4-iodopyridine, catalyzed by tetrakis(triphenylphosphine)palladium, to obtain a compound C;
- step 4) under an alkaline condition, performing a Suzuki reaction with 4-bromo-2h-1,2,3-triazole and bis(pinacolto)borane, catalyzed by [1,1′-bis(diphenylphosphino) ferrocene]dichloropalladium(II), to obtain a compound D;
- and
- step 5) under an alkaline condition, performing a Suzuki reaction with the compound D and the compound C, catalyzed by tetrakis(triphenylphosphine)palladium, to obtain the polydentate organic ligand;
- wherein the compound A has the following structural formula:
- the compound B has the following structural formula:
- the compound C has the following structural formula:
- the compound D has the following structural formula:
- and
- wherein R1, R2, and R3 are hydrogen groups (*—H) respectively, and the polydentate organic ligand is expressed by the following structural formula:
9 more elements
Dependencies are inferred from the claim text.