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Issue 11, 2018
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Influence of ancillary ligands on the photophysical properties of cyclometalated organoplatinum(II) complexes

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Abstract

Three series of cyclometalated organoplatinum(II) complexes [Pt(p-MeC6H4)(bhq)(L)], in which bhq is benzo[h]quinolinate and L is PPh3 (1a), PPh2Me (1b), or PPhMe2 (1c); [Pt(p-XC6H4)(bhq)(PPh2Me)], in which X is H (2a), F (2b), tBu (2c), OMe (2d), or Me (2e = 1b); and [Pt(bhq)X(PPh2Me)], in which X is CF3CO2 (3a), Cl (3b), or I (3c) were synthesized and fully characterized using multinuclear (1H and 31P) NMR spectroscopy and elemental analysis. Typical complexes [Pt(p-MeC6H4)(bhq)(PPhMe2)], 1c, [Pt(p-MeC6H4)(bhq)(PPh2Me)], 2e, and [Pt(bhq)Cl(PPh2Me)], 3b, were further characterized by single crystal X-ray crystallography. The photophysical properties of all the complexes were studied and the influence of changing the ancillary ligands and substituents on their luminescence properties were investigated and the assignments were confirmed by TD–DFT calculations.

Graphical abstract: Influence of ancillary ligands on the photophysical properties of cyclometalated organoplatinum(ii) complexes

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Publication details

The article was received on 10 Dec 2017, accepted on 04 Apr 2018 and first published on 04 Apr 2018


Article type: Paper
DOI: 10.1039/C7NJ04888B
Citation: New J. Chem., 2018,42, 8661-8671
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    Influence of ancillary ligands on the photophysical properties of cyclometalated organoplatinum(II) complexes

    M. Samandar Sangari, M. Golbon Haghighi, S. M. Nabavizadeh, A. Pfitzner and M. Rashidi, New J. Chem., 2018, 42, 8661
    DOI: 10.1039/C7NJ04888B

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