Photochemistry of (n-Bu₄N)₂[Pt(NO₃)₆] in acetonitrile.

IF 2.7 3区化学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

Photochemical & Photobiological Sciences Pub Date : 2024-04-01 Epub Date: 2024-03-02 DOI:10.1007/s43630-024-00550-5

Vjacheslav P Grivin, Svetlana G Matveeva, Roman G Fedunov, Vadim V Yanshole, Danila B Vasilchenko, Evgeni M Glebov

引用次数: 0

Abstract

Photochemistry of the (n-Bu₄N)₂[Pt(NO₃)₆] complex in acetonitrile was studied by means of stationary photolysis and nanosecond laser flash photolysis. The primary photochemical process was found to be an intramolecular electron transfer followed by an escape of an ^•NO₃ radical to the solution bulk. The spectra of two successive Pt(III) intermediates were detected in the microsecond time domain, and their spectral and kinetic characteristics were determined. These intermediates were identified as Pt^III(NO₃)₅^2- and Pt^III(NO₃)₄^- complexes. Disproportionation of Pt(III) species resulted in formation of final Pt(II) products.

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(n-Bu4N)2[Pt(NO3)6] 在乙腈中的光化学作用。

通过固定光解法和纳秒激光闪烁光解法研究了乙腈中 (n-Bu4N)2[Pt(NO3)6] 复合物的光化学过程。研究发现，主要的光化学过程是分子内电子转移，然后-NO3 自由基逸出到溶液中。在微秒时域中检测到了两个连续的 Pt（III）中间产物的光谱，并确定了它们的光谱和动力学特征。这些中间产物被确定为 PtIII(NO3)52- 和 PtIII(NO3)4- 复合物。铂(III)物种的歧化导致形成最终的铂(II)产物。

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