期刊
CHEMICAL SCIENCE
卷 9, 期 44, 页码 8446-8452出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc02677g
关键词
-
资金
- Spanish Ministerio de Economia y Competitividad (MINECO)
- FEDER [CTQ2013-46275-P, CTQ2016-78341-P]
- Unidad de Excelencia Maria de Maeztu [MDM-2015-0538]
- Generalitat Valenciana [PROMETEO/2016/147]
- Swiss National Science Foundation [200021-169033]
The search for bifunctional materials showing synergies between spin crossover (SCO) and luminescence has attracted substantial interest since they could be promising platforms for new switching electronic and optical technologies. In this context, we present the first three-dimensional Fe-II Hofmann-type coordination polymer exhibiting SCO properties and luminescence. The complex {Fe-II(bpben)[Au(CN)(2)]}@pyr (bpben = 1,4-bis(4-pyridyl)benzene) functionalized with pyrene (pyr) guests undergoes a cooperative multi-step SCO, which has been investigated by single crystal X-ray diffraction, single crystal UV-Vis absorption spectroscopy, and magnetic and calorimetric measurements. The resulting fluorescence from pyrene and exciplex emissions are controlled by the thermal and light irradiation (LIESST effect) dependence of the high/low-spin state population of Fe-II. Conversely, the SCO can be tracked by monitoring the fluorescence emission. This ON-OFF interplay between SCO and luminescence combined with the amenability of Hofmann-type materials to be processed at the nano-scale may be relevant for the generation of SCO-based sensors, actuators and spintronic devices.
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