Synthesis of Metallo-Supramolecular Polymers with Bis-NNN-Tridentate Ligand for Electrochromic Devices

被引：7

作者：

Kanao, Miki ^{[1
,2
]}

Higuchi, Masayoshi ^{[1
,2
]}

机构：

[1] NIMS, Elect Funct Mat Grp, Tsukuba, Ibaraki 3050044, Japan

[2] JST CREST, Chiyoda Ku, Tokyo 1020075, Japan

来源：

JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY | 2015年 / 28卷 / 03期

关键词：

Metallo-supramolecular polymer; Transition metal; Electrochromic property; AMIDE LIGAND; COMPLEXES; REDOX; CHROMOPHORES; IONS;

D O I：

10.2494/photopolymer.28.363

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A bis-tridentate ligand with 2,6-bis(phenylamide)pyridine moieties (L1) was synthesized by amidation and Suzuki-Miyaura cross coupling reaction from chelidamic acid monohydrate. Novel metallo-supramolecular polymers containing iron(II), ruthenium(II), or nickel(II) ions (PolyFeL1, PolyRuL1 and PolyNiL1, respectively) were obtained as yellowish brown solid via complexation of L1 with the metal ions in the presence of a strong base. The polymers were characterized by IR, UV-vis-NIR absorption spectra, and cyclic voltammetry (CV). The IR spectra showed disappearance of NH stretching peak and shift of C=O stretching peak due to the complexation. The characteristic LMCT absorption appeared at 470 (Fe), 442 (Ru), or 367 (Ni) nm. The solution of the polymers showed a reversible redox wave attributed to the redox of metal ions. PolyFeL1 exhibited reversible electrochromism between orange and brown by applying + 3 V or 0 V.

引用

页码：363 / 368

页数：6