Description of a Non-Canonical AsPt Blue Species Originating from the Aerobic Oxidation of AP-1 in Aqueous Solution

Damiano Cirri; Tiziano Marzo; Piero Mastrorilli; Valentina Petrelli; Stefano Todisco; Elvira De Giglio; Cristina Gellini; Marilena Ricci; Alessandro Pratesi; Luigi Messori

doi:10.3390/ijms25137408

Description of a Non-Canonical AsPt Blue Species Originating from the Aerobic Oxidation of AP-1 in Aqueous Solution

Int J Mol Sci. 2024 Jul 5;25(13):7408. doi: 10.3390/ijms25137408.

Authors

Affiliations

¹ Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy.
² Department of Pharmacy, University of Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy.
³ Department of Civil, Environmental, Land, Building and Chemical Engineering (DICATECh), Polytechnic University of Bari, Via Orabona 4, 70125 Bari, Italy.
⁴ Department of Chemistry, University of Bari "Aldo Moro", Via Orabona 4, 70125 Bari, Italy.
⁵ Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy.

Abstract

The peculiar behavior of arsenoplatin-1, ([Pt(µ-NHC(CH₃)O)₂ClAs(OH)₂], AP-1), in aqueous solution and the progressive appearance of a characteristic and intense blue color led us to carry out a more extensive investigation to determine the nature of this elusive chemical species, which we named "AsPt blue". A multi-technique approach was therefore implemented to describe the processes involved in the formation of AsPt blue, and some characteristic features of this intriguing species were revealed.

Keywords: CP/MAS 1H-13C; XPS; arsenoplatin-1; platinum blue compounds.

MeSH terms

Organoplatinum Compounds / chemistry
Oxidation-Reduction*
Solutions
Water / chemistry

Substances

Water
Solutions
Organoplatinum Compounds