Accessing the long-lived near-IR-emissive triplet excited state in naphthalenediimide with light-harvesting diimine platinum(II) bisacetylide complex and its application for upconversion

Yifan Liu; Wanhua Wu; Jianzhang Zhao; Xin Zhang; Huimin Guo

doi:10.1039/c1dt10679a

Accessing the long-lived near-IR-emissive triplet excited state in naphthalenediimide with light-harvesting diimine platinum(II) bisacetylide complex and its application for upconversion

Dalton Trans. 2011 Sep 28;40(36):9085-9. doi: 10.1039/c1dt10679a. Epub 2011 May 19.

Authors

Yifan Liu¹, Wanhua Wu, Jianzhang Zhao, Xin Zhang, Huimin Guo

Affiliation

¹ State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, PR China.

PMID: 21594290
DOI: 10.1039/c1dt10679a

Abstract

Room temperature near-IR phosphorescence of naphthalenediimide (NDI) was observed with N^N Pt(II) bisacetylide complex (Pt-NDI) in which the NDI was connected to Pt(II) center via acetylide. Pt-NDI shows intense absorption of visible light and long-lived NDI-localized excited state ((3)IL) (τ(T) = 22.3 μs). Pt-NDI was used as a triplet sensitizer for upconversion.