Long-lived platinum(II) diimine complexes with broadband excited-state absorption: efficient nonlinear absorbing materials

Rui Liu; Alexander Azenkeng; Yuhao Li; Wenfang Sun

doi:10.1039/C2DT31267K

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Dalton Transactions

Issue 40, 2012

The international journal for inorganic, organometallic and bioinorganic chemistry

Impact Factor 3.838 48 Issues per Year Indexed in MEDLINE

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Long-lived platinum(II) diimine complexes with broadband excited-state absorption: efficient nonlinear absorbing materials

Rui Liu,^a Alexander Azenkeng,^b Yuhao Li^a and Wenfang Sun*^a

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Corresponding authors

Department of Chemistry and Biochemistry, North Dakota State University, Fargo, USA
E-mail: Wenfang.Sun@ndsu.edu ;
Fax: (+1) 701-231-8831

Energy and Environmental Research Center, University of North Dakota, Grand Forks, USA

Dalton Trans., 2012,41, 12353-12357

DOI: 10.1039/C2DT31267K
Received 12 Jun 2012, Accepted 24 Aug 2012
First published online 28 Aug 2012

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Abstract
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Platinum(II) diimine complexes with naphthalimide substituted fluorenylacetylide ligands are synthesized and characterized. The complexes exhibit long-lived ³ILCT or ³ILCT/³MLCT/³LLCT excited states (τ = [similar] 20–30 μs) and broadband triplet transient absorption in the visible-NIR region. Nonlinear transmission experiments at 532 nm demonstrate that these complexes are efficient nonlinear absorbing materials.