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Influence of Ancillary Ligands on Photophysical Properties of Cyclometalated Organoplatinum(II) Complexes

Abstract

The 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), PPhMe2 (1c); [Pt(p-XC6H4)(bhq)(PPh2Me)], in which X is H (2a), F (2b), tBu (2c), OMe (2d), Me (2e = 1b); and [Pt(bhq)X(PPh2Me)], in which X is CF3CO2 (3a), Cl (3b), 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, [Pt(bhq)Cl(PPh2Me)], 3b, were further characterized by single crystal X-ray crystallography. Photophysical properties of all the complexes were studied and the influence of changing ancillary ligands and substituents on their luminescence properties were invenstigated and the assignments were confirmed by TD-DFT caculations.

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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, Accepted Manuscript
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    Influence of Ancillary Ligands on 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, Accepted Manuscript , DOI: 10.1039/C7NJ04888B

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