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Issue 10, 2019
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Non-conventional synthesis and photophysical studies of platinum(II) complexes with methylene bridged 2,2′-dipyridylamine derivatives

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Abstract

Methylene bridged 2,2′-dipyridylamine (dpa) derivatives and their metal complexes possess outstanding properties due to their inherent structural flexibility. Synthesis of such complexes typically involves derivatization of dpa followed by coordination on metals, and may not always be very efficient. In this work, an alternative synthetic approach, involving the derivatization step after – rather than prior to – coordination of dpa on metal center, is proposed and applied to synthesis of a number of platinum(II) complexes with substituted benzyldi(2-pyridyl)amines. Comparison with the more conventional synthetic route reveals greater efficiency and versatility of the proposed approach. The obtained complexes are not luminescent in solution at room temperature, but display blue phosphorescence emission (ca. 415 nm) with the lifetimes of μs order in glassy matrix at 77 K, with additional green (ca. 485 nm) and relatively long living (τ = 3.7 ms) emission in the case of iodine substituted derivative.

Graphical abstract: Non-conventional synthesis and photophysical studies of platinum(ii) complexes with methylene bridged 2,2′-dipyridylamine derivatives

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Publication details

The article was received on 28 Sep 2018, accepted on 12 Feb 2019 and first published on 13 Feb 2019


Article type: Paper
DOI: 10.1039/C8DT03912G
Citation: Dalton Trans., 2019,48, 3369-3379
  • Open access: Creative Commons BY-NC license
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    Non-conventional synthesis and photophysical studies of platinum(II) complexes with methylene bridged 2,2′-dipyridylamine derivatives

    E. Bulatov and M. Haukka, Dalton Trans., 2019, 48, 3369
    DOI: 10.1039/C8DT03912G

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