Synthesis, crystal structure, and magnetic properties of Bi3Mn4O12(NO3) oxynitrate comprising S = 3/2 honeycomb lattice

Olga Smirnova; Masaki Azuma; Nobuhiro Kumada; Yoshihiro Kusano; Masaaki Matsuda; Yuichi Shimakawa; Takahiro Takei; Yoshinori Yonesaki; Nobukazu Kinomura

doi:10.1021/ja901922p

Synthesis, crystal structure, and magnetic properties of Bi3Mn4O12(NO3) oxynitrate comprising S = 3/2 honeycomb lattice

J Am Chem Soc. 2009 Jun 17;131(23):8313-7. doi: 10.1021/ja901922p.

Authors

Olga Smirnova¹, Masaki Azuma, Nobuhiro Kumada, Yoshihiro Kusano, Masaaki Matsuda, Yuichi Shimakawa, Takahiro Takei, Yoshinori Yonesaki, Nobukazu Kinomura

Affiliation

¹ Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.

PMID: 19507911
DOI: 10.1021/ja901922p

Abstract

Neutron diffraction and FT-IR analysis revealed that the novel oxynitrate Bi(3)Mn(4)O(12)(NO(3)) (space group P3, a = 4.9692(1) A, c = 13.1627(3) A) prepared by hydrothermal synthesis is of a new structural type including flat NO(3) layers alternating with blocks of two PbSb(2)O(6)-like layers. Mn(4+) (S = (3)/(2)) forms a regular honeycomb lattice, and magnetic susceptibility data indicated two-dimensional magnetism. Despite its Weiss constant of -257 K, no long-range ordering was observed down to 0.4 K because of the magnetic frustration due to the competition between the nearest and the next-nearest antiferromagnetic interactions.