Work

Lead-Halide Perovskites for Photocatalytic α-Alkylation of Aldehydes

Year: 2019

Type: article

Abstract: Cost-effective and efficient photocatalysis are highly desirable in chemical synthesis. Here we demonstrate that readily prepared suspensions of APbBr 3 (A = Cs or methylammonium (MA)) type perovskite colloids (ca. 2–100 nm) can selectively photocatalyze carbon–carbon bond formation reactions, i.e., α-alkylations. Specifically, we demonstrate α-alkylation of aldehydes with a turnover number (TON) of over 52,000 under visible light illumination. Hybrid organic/inorganic perovskites are revolutionizing photovoltaic research and are now impacting other research fields, but their exploration in organic synthesis is rare. Our low-cost, easy-to-process, highly efficient and bandedge-tunable perovskite photocatalyst is expected to bring new insights in chemical synthesis.

Source: Journal of the American Chemical Society

DOI: 10.1021/jacs.8b08720

Authors: Xiaolin Zhu, Yixiong Lin, Yue Sun, Matthew C. Beard, Yong Yan

Institutions: New Jersey Institute of Technology, San Diego State University, National Laboratory of the Rockies

Language: English

Topic: Perovskite Materials and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green