Tunable luminescence of cyclometallated platinum(II) derivatives based on novel pyrimidine-contained tridentate Pt(NˆCˆN)Cl complexes. (June 2017)

• Record Type: Journal Article
• Authors: Li, Xianying; Hu, Jiena; Wu, Yang; Li, Rong; Xiao, Duoduo; Zeng, Wang; Zhang, Dengqing; Xiang, Yunjie; Jin, Wusong
• Is Part Of: Dyes and pigments. Volume 141(2017)
• Page Start: 188
• Page End: 194
• Publication Date: 2017-06
• Subjects: Cyclometallated platinum(II) derivatives -- Tridentate complex -- Luminescence -- Pyrimidine-contained -- Near infrared region -- Self-assembly; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2017.02.020
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: Two novel tridentate Pt(NˆCˆN)Cl complexes, 1a and2a, with an electron-deficient pyrimidine-contained NˆCˆN tridentate ligand, were synthesized and characterized. Single crystal X-ray diffraction of1a revealed a cyclometallated square-planar geometry. In the single crystal, 1a adopted a head-to-head dimeric form with the shortest Pt⋯Pt distance of 4.22 Å and π–π stacking affording one-dimensional nanostructure along a -axial direction. Interestingly, in contrast to1a, Pt⋯Pt interaction of2a, with a flexible alkyl chain substituent, could be induced by facile solution processable self-assembly, allowing for modulation of luminescence from visible to near-IR (NIR) region. Graphical abstract: