Photoluminescence and photochemistry of Pt(II)(PPh3)2(C6O6) induced by rhodizonate IL excitation

The complex Pt(II)(PPh3)2(C6O6) was prepared by the reaction of Ag2C6O6 with cis-Pt(PPh3)2Cl2 in acetonitrile. Pt(PPh3)2(C6O6) is characterized by a lowest-energy IL (rhodizonate) excited state. The complex shows an IL fluorescence, but is also photoactive. The photolysis leads to the conversion of...

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Bibliographic Details
Published in:Inorganic chemistry communications 2016-12, Vol.74, p.90-92
Main Author: Vogler, Arnd
Format: Article
Language:English
Subjects:
Photochemistry
Photoluminescence
Platinum(II)
Rhodizonate
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Summary:The complex Pt(II)(PPh3)2(C6O6) was prepared by the reaction of Ag2C6O6 with cis-Pt(PPh3)2Cl2 in acetonitrile. Pt(PPh3)2(C6O6) is characterized by a lowest-energy IL (rhodizonate) excited state. The complex shows an IL fluorescence, but is also photoactive. The photolysis leads to the conversion of rhodizonate to croconate in the coordinated state: Pt(II)(PPh3)2(C6O6)→Pt(II)(PPh3)2(C5O5)+CO. [Display omitted] •The complex Pt(II)(PPh3)2(C6O6) was prepared.•Its lowest-energy excited state is of the rhodizonate IL type.•The complex shows an IL fluorescence.•The complex is also photoactive.•The photolysis leads to the conversion of rhodizonate to croconate.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2016.11.001