Imma perovskite-type oxynitride LaTiO2N: structure and electron density

Masatomo Yashima; Mio Saito; Hiromi Nakano; Tsuyoshi Takata; Kiyonori Ogisu; Kazunari Domen

doi:10.1039/c0cc00573h

Imma perovskite-type oxynitride LaTiO2N: structure and electron density

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

Authors

Masatomo Yashima¹, Mio Saito, Hiromi Nakano, Tsuyoshi Takata, Kiyonori Ogisu, Kazunari Domen

Affiliation

¹ 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. yashima@materia.titech.ac.jp

PMID: 20485779
DOI: 10.1039/c0cc00573h

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.