Achieving colour tuneable and white-light luminescence in a large family of dual-emission lanthanide coordination polymers. Issue 40 (24th September 2021)

• Record Type: Journal Article
• Authors: Qian, Junfeng; Lu, Huangjie; Zheng, Zhaofa; Xu, Miaomiao; Qian, Yuan; Zhang, Zhi-Hui; Wang, Jian-Qiang; He, Ming-Yang; Lin, Jian
• Is Part Of: Dalton transactions. Volume 50:Issue 40(2021)
• Page Start: 14325
• Page End: 14331
• Publication Date: 2021-09-24
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt01618k
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Expanding the family of lanthanide terpyridine coordination polymers has resulted in eighteen new complexes featuring fine-tuned photoluminescent colours over a wide range of gamut and direct white-light emission. Abstract : Expanding the family of lanthanide terpyridine coordination polymers has yielded eighteen new complexes with two different phases, Ln(TPC)2 (HCOO)(H2 O) (Ln-1 ) and Ln(TPC)(HCOO)2 (Ln-2 ) (Ln = Sm–Lu, except Tm). Both structures are composed of lanthanide cations interconnected by 2, 2′:6′, 2′′-terpyridine-4′-carboxylate ligands to yield one-dimensional chain topologies. However, the incorporation of an additional crystallographically unique decorative TPC ligand into Ln-1 gives rises to a distinct phase. The encapsulation of both metal- and ligand-based phosphors within single coordination polymers leads to dual-emission of the afforded materials. Furthermore, judicious lanthanide doping in heterometallic Ln-1 and Ln-2 allows for fine-tuning the photoluminescent colours over a wide range of gamut. Such a combination showcases the capability to fine-tune the emission colours from deep green, to red, and to blue. In addition, direct white-light emission upon UV excitation can be achieved in the Sm x Gd 1− x -1 system.