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Updated: Jan 31, 2026

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration

A Facile Synthetic Method to Obtain Bismuth Oxyiodide Microspheres Highly Functional for the Photocatalytic Processes of Water Depuration

Published on: March 29, 2019

ビスマス(III)カチオンと白金(0)錯体の反応性：酸化的アリール基転移

Johannes Schwarzmann¹, Cissie Slopianka¹, Crispin Lichtenberg¹

¹Department of Chemistry, Philipps University Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany.

Organometallics

|January 30, 2026

Abstract:

Reactions of three aryl-substituted bismuth cations, [BiPh₂(SbF₆)], [BiMes₂(SbF₆)], and [BiDipp₂(SbF₆)], with the Pt⁰ complex Pt-(PCy₃)₂ have been investigated (Mes = 2,4,6-trimethyl-phenyl; Dipp = 2,6-di-iso-propyl-phenyl; Cy = cyclohexyl). Unexpectedly, and in contrast with the reactivity of the recently reported methyl analogue [BiMe₂(SbF₆)], the formation of isolable metal-only Lewis pairs [(Cy₃P)₂Pt→BiAr₂(SbF₆)] is not observed (Ar = aryl). Instead, an unprecedented bismuth-to-platinum oxidative aryl transfer is witnessed to give the Pt^II complexes [PtAr-(PCy₃)₂(SbF₆)], along with the suggested bismuthinidene intermediates BiAr. Attempts to trap these fleeting intermediates with an ortho-quinone led to a Pt^II semiquinone radical complex.

キーワード:

ビスマス白金酸化的アリール基転移ビスマス化中間体有機金属化学

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Oxidation-Reduction Reactions

Oxidation-Reduction Reactions

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Pyruvate Oxidation

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Oxidation Numbers

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In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.

Nomenclature of Aryl and Heterocyclic Amines

Nomenclature of Aryl and Heterocyclic Amines

The simplest aromatic amine is phenylamine, which contains an –NH2 functionality directly attached to an aromatic ring. The name aniline is designated for this skeleton. As shown in Figure 1, the common names of the functionalized anilines involve prefixes ortho-, meta-, and para- to indicate the substitution position. Different functionalized aniline derivatives also have notable trivial names.

Ionic Bonding and Electron Transfer

Ionic Bonding and Electron Transfer

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Formation of Complex Ions

Formation of Complex Ions

A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...