期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 139, 期 15, 页码 5359-5366出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b12810
关键词
-
资金
- JST PRESTO
- JST CREST, Japan [JPMJPR1516, JPMJCR15F2]
- JSPS KAKENHI [JP25107510, JP25600148, JP26708005, JP26107510, JP26620039, JP15H00862]
- JSPS [2603441, 2508382]
- Ogasawara Foundation for the Promotion of Science Engineering
- Kao Foundation for Arts and Sciences
- Asahi Glass Foundation
- Noguchi Institute
- Japan Association for Chemical Innovation
- MIKIYA Science and Technology Foundation
- Yazaki Memorial Foundation for Science and Technology
- Shorai Foundation for Science and Technology
- Kurata Memorial Hitachi Science and Technology Foundation
- Iketani Science and Technology Foundation
- Kumagai Foundation for Science and Technology
- Foundation for Interaction in Science Technology
- Foundation for The Promotion of Ion Engineering
- Foundation Advanced Technology Institute
- Izumi Science and Technology Foundation
- LIXIL JS Foundation
- Grants-in-Aid for Scientific Research [15H00862, 26708005, 16H00900, 26620039] Funding Source: KAKEN
Photoluminescent coordination nanosheets (CONASHs) comprising threeway terpyridine (tpy) ligands and zinc(II) ions are created by allowing the two constitutive components to react with each other at a liquid/liquid interface. Taking advantage of bottom-up CONASHs, or flexibility in organic ligand design and coordination modes, we demonstrate the diversity of the tpy-zinc(II) CONASH in structures and photofunctions. A combination of 1,3,6-tris[4-(4'-2,2':6',2-terpyridyl)phenyl]benzene (1) and Zn(BF4)(2) affords a cationic CONASH featuring the bis(tpy)Zn complex motif (1-Zn), while substitution of the zinc source with ZnSO4 realizes a charge-neutral CONASH with the [Zn-2(mu-O2SO2)(2)(tpy)(2)] motif [1-Zn-2(SO4)(2)]. The difference stems from the use of noncoordinating (BF4-) or coordinating and bridging (SO42-) anions. The change in the coordination mode alters the luminescence (480 nm blue in 1-Zn; 552 nm yellow in 1-Zn-2(SO4)(2)). The photophysical property also differs in that 1-Zn-2(SO4)(2) shows solvatoluminochromism, whereas 1-Zn does not. Photoluminescence is also modulated by the tpy ligand structure. 2-Zn contains triarylamine-centered terpyridine ligand 2 and features the bis(tpy)Zn motif; its emission is substantially red-shifted (590 nm orange) compared with that of 1-Zn. CONASHs 1-Zn and 2-Zn possess cationic nanosheet frameworks with counteranions (BF,-), and thereby feature anion exchange capacities. Indeed, anionic xanthene dyes were taken up by these nanosheets, which undergo quasi-quantitative exciton migration from the host CONASH. This series of studies shows tpy-zinc(II) CONASHs as promising potential photofunctional nanomaterials.
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