期刊
POLYMER
卷 239, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2021.124463
关键词
Silicon complex; pi-Conjugated polymer; Near-infrared emission
资金
- Iketani Science and Technology Foundation
- JSPS KAKENHI [20K22532, 21K14673, 21H02001, P24102013]
- Grants-in-Aid for Scientific Research [20K22532, 21H02001, 21K14673] Funding Source: KAKEN
In this study, silicon-formazanate complexes and their conjugated polymers with near-infrared luminescence were synthesized. The photophysical properties of the complexes were found to be influenced by the types of axial ligands. Theoretical calculations revealed that the square-pyramidal structure at the coordination center facilitated efficient pi-conjugation.
Organic compounds interacting with near-infrared (NIR) light are vital for developing next-generation functional materials. Herein, silicon formazanate complexes and their conjugated polymers with near-infrared luminescence were synthesized using the N2O2-type formazanate ligands. In the calculated geometries, the silicon atom possessed square-pyramidal structures. Interestingly, the photophysical properties of the complexes were strongly affected by the types of axial ligands. pi-Conjugation efficiently extended through the polymer chains, resulting in narrow energy gaps between frontier orbitals. The emission band from spin-coat films reached the NIR II region (> 1000 nm). Theoretical calculations revealed that the square-pyramidal structure at the coordination center should be responsible for the efficient pi-conjugation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据