当前位置: X-MOL 学术ChemPhotoChem › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Novel Photoactive Spirooxazine Based Switch@MOF Composite Materials
ChemPhotoChem ( IF 3.0 ) Pub Date : 2020-01-09 , DOI: 10.1002/cptc.201900193
Heidi A. Schwartz 1, 2 , Melanie Werker 1 , Christian Tobeck 1 , Ronja Christoffels 1 , Dominik Schaniel 3 , Selina Olthof 4 , Klaus Meerholz 4 , Holger Kopacka 2 , Hubert Huppertz 2 , Uwe Ruschewitz 1
Affiliation  

Molecules, which reversibly transform between two structural configurations upon excitation with electromagnetic radiation, are attractive candidates for the design of smart materials e. g. memory devices. A possible approach for the development of such smart materials is the construction of hybrid systems that contain these photochromic molecules as well as a porous host matrix, which enables their switching process in the solid state. We herein present the first light‐responsive materials consisting of the photoswitchable spirooxazine 1,3,3‐trimethyl indolinonaphthospirooxazine (SP−O) and crystalline porous MOF (metal–organic framework) hosts, namely MOF‐5, MIL‐68(In), MIL‐68(Ga), and MIL‐53(Al), which were combined to form hybrid SP−O@MOF composites. These systems show a reversible photochromic response and host‐dependent absorption maxima of the incorporated guest molecules. Most remarkably, SP−O is extremely photostable upon repetitive and prolonged UV light exposure especially inside MOF‐5, making these composite materials attractive candidates for potential applications in data storage devices.

中文翻译:

新型基于光活性螺恶嗪的Switch @ MOF复合材料

分子在电磁辐射激发下可逆地在两种结构构型之间转换,是设计智能材料的诱人候选物。G。存储设备。开发此类智能材料的一种可能方法是构建包含这些光致变色分子以及多孔主体基质的混合系统,从而使它们能够以固态进行转换。我们在此介绍的第一批光响应材料是由可光转换的螺恶嗪1,3,3-三甲基吲哚并萘甲恶螺恶嗪(SP-O)和结晶性多孔MOF(金属-有机骨架)主体组成的,即MOF-5,MIL-68(In) ,MIL-68(Ga)和MIL-53(Al)结合在一起形成SP-O @ MOF混合复合材料。这些系统显示出可逆的光致变色反应和掺入的客体分子的依赖于主体的最大吸收。最引人注目的是,SP-0在反复和长时间的紫外线照射下(尤其是在MOF-5内部)具有极好的光稳定性,使这些复合材料成为数据存储设备潜在应用的有吸引力的候选材料。
更新日期:2020-01-09
down
wechat
bug