Manganese(II) o ctacyanotungstate(V)-based magnet containing a noncoordinated aromatic molecule

Toshinori Kashiwagi; Shin-Ichi Ohkoshi; Hidetake Seino; Yasushi Mizobe; Kazuhito Hashimoto

doi:10.1021/ja030648m

Manganese(II) o ctacyanotungstate(V)-based magnet containing a noncoordinated aromatic molecule

J Am Chem Soc. 2004 Apr 28;126(16):5024-5. doi: 10.1021/ja030648m.

Authors

Toshinori Kashiwagi¹, Shin-Ichi Ohkoshi, Hidetake Seino, Yasushi Mizobe, Kazuhito Hashimoto

Affiliation

¹ Research Center for Advanced Science and Technology, The University of Tokyo, Meguro-ku, Japan.

PMID: 15099058
DOI: 10.1021/ja030648m

Abstract

We have prepared a pillared layer magnetic material containing a noncoordinated aromatic molecule, [{MnII(pyrimidine)(H2O)}2{MnII(H2O)2}{WV(CN)8}2](pyrimidine)2.2H2O. This compound has one-dimensional channels (6.2 x 2.1 A) that are occupied by noncoordinated pyrimidine. The magnetization versus temperature plots showed the magnetic phased transition temperature (TC) was 47 K. The magnetization versus external magnetic field plots showed that the saturation magnetization (MS) value was 13.0 muB at 2 K. This MS value indicates that an antiferromagnetic interaction operates between the WV (S = 1/2) and MnII (S = 5/2) ions. The magnetic hysteresis loop showed that the coercive field (HC) was 17 G at 2 K.