Photochromic Terbium Phosphonates with Photomodulated Luminescence and Metal Ion Sensitive Detection. Issue 43 (9th September 2016)

• Record Type: Journal Article
• Authors: Yang, Weiting; Tian, Hong‐Rui; Li, Jian‐Ping; Hui, Yuan‐Feng; He, Xiang; Li, Jiyang; Dang, Song; Xie, Zhigang; Sun, Zhong‐Ming
• Is Part Of: Chemistry. Volume 22:Issue 43(2016)
• Page Start: 15451
• Page End: 15457
• Publication Date: 2016-09-09
• Subjects: lanthanide phosphonate -- luminescence -- multiphotofunctionality -- photochromism -- sensors; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201602779
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: Rational selection and modification of rare earth metal centers and photoactive organic linkers enables designable multiphotofunctionality to come to fruition in new hybrid coordination polymer materials. By using a viologen‐functionalized diphosphonate linker, two terbium phosphonate compounds (Tb‐1 andTb‐2 ) have been constructed, which display reversible photochromic reactions in response to UV light and soft X‐ray irradiation. In addition, the photo‐induced electron‐transfer reaction can modulate the luminescent emission to thus realize photoluminescence switching behavior. Furthermore, both terbium phosphonates can serve as highly sensitive sensors to probe Cu 2+ in solution through their luminescence. Thus, they represent the first photochromic examples of lanthanide phosphonate‐based materials with photomodulated luminescence and sensitive detection of metal ions. Abstract : Two photochromic terbium phosphonate materials are constructed by using a photoactive viologen‐functionalized organic ligand. The photoluminescence of both materials can be modulated by the photochromic reaction, moreover, they can be used for the sensitive detection of Cu 2+ ions (see scheme).