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

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

Masatomo Yashima,*^a Mio Saito,^a Hiromi Nakano,^b Tsuyoshi Takata,^c Kiyonori Ogisu^c and Kazunari Domen^c

Author affiliations

* Corresponding authors

^a 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, Japan
E-mail: yashima@materia.titech.ac.jp

^b Cooperative Research Facility Center, Toyohashi University of Technology, Hibarigaoka 1-1, Tempaku, Toyohashi, Japan

^c Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan

Abstract

We present the first example of Imma perovskite-type oxynitride. LaTiO₂N was found to have an Imma perovskite-type structure with a⁰b⁻b⁻ tilt system. The Ti–(O,N) covalent bonding and existence of N atoms are responsible for the reduced band gap of LaTiO₂N photocatalyst.

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Supplementary files

Electron diffraction patterns, TEM image and CIF file of LaTiO ₂N, details of sample synthesis and DFT calculations, and the figures of crystal structure and band structure PDF (1833K)

Article information

DOI: https://doi.org/10.1039/C0CC00573H
Article type: Communication
Submitted: 24 Mar 2010
Accepted: 26 Apr 2010
First published: 18 May 2010

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Chem. Commun., 2010,46, 4704-4706

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Imma perovskite-type oxynitride LaTiO₂N: structure and electron density

M. Yashima, M. Saito, H. Nakano, T. Takata, K. Ogisu and K. Domen, Chem. Commun., 2010, 46, 4704 DOI: 10.1039/C0CC00573H

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