钙钛矿型氧氮化物 LaTiO2N：结构与电子密度。

Imma perovskite-type oxynitride LaTiO2N: structure and electron density.

机构信息

Department of Materials Science and Engineering, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Nagatsuta-cho 4259-J2-61, Midori-ku, Yokohama-shi, 226-8502, Japan.

出版信息

Chem Commun (Camb). 2010 Jul 14;46(26):4704-6. doi: 10.1039/c0cc00573h. Epub 2010 May 18.

DOI:10.1039/c0cc00573h

PMID:20485779

Abstract

We present the first example of Imma perovskite-type oxynitride. LaTiO(2)N was found to have an Imma perovskite-type structure with a(0)b(-)b(-) tilt system. The Ti-(O,N) covalent bonding and existence of N atoms are responsible for the reduced band gap of LaTiO(2)N photocatalyst.

摘要

我们首次提出了 Imma 钙钛矿型氧氮化物。研究发现 LaTiO(2)N 具有 Imma 钙钛矿型结构，存在 a(0)b(-)b(-) 倾斜系统。Ti-(O,N) 共价键和 N 原子的存在导致 LaTiO(2)N 光催化剂的带隙减小。