Study on the ferromagnetic state in iron mixed-valence complexes, A[FeIIFeIII(dto)3] (A = (n-CnH2n + 1)4N; dto = C2S2O2) by means of Mössbauer spectroscopy

被引：0

作者：

Yuki Ono

Atsushi Okazawa

Masaya Enomoto

Norimichi Kojima

机构：

[1] The University of Tokyo,Graduate School of Arts and Sciences

[2] Tokyo University of Science,Department of Chemistry, Faculty of Science Division I

来源：

Hyperfine Interactions | 2012年 / 207卷

关键词：

Mixed-valence complex; Dithiooxalato; Ferromagnetism; Mössbauer spectroscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We have investigated the ferromagnetic states for (n-CnH2n + 1)4N[FeIIFeIII(dto)3] (n = 3–6; dto = C2O2S2) by means of 57Fe Mössbauer spectroscopy. The major component of the spin configuration in the ferromagnetic states for n = 3 and 4 is the low-temperature phase (LTP) with the FeIII (S = 5/2) and FeII (S = 0) states. The high-temperature phase (HTP) of n = 4 remains by more than 20%, which is consistent with two ferromagnetic transitions (TC = 7 & 13 K). Moreover, it was revealed that the Mössbauer spectra in the ferromagnetic states for n = 5 and 6 correspond to the HTP consisting of the FeII (S = 2) and FeIII (S = 1/2) states.

引用

页码：139 / 143

页数：4

共 50 条

[21] Room-Temperature Magnetoelectric Coupling in Electronic Ferroelectric Film based on [(n-C3H7)4N][FeIIIFeII(dto)3] (dto = C2O2S2)
Liu, Xiaolin
Wang, Bin
Huang, Xiaofeng
Dong, Xinwei
Ren, Yanping
Zhao, Haixia
Long, Lasheng
Zheng, Lansun
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2021, 143 (15) : 5779 - 5785
[22] Study on the molecular magnetism in mixed valence iron complexes, M[FeIIFeIII(mto)3] (M=(n-C3H7)4N, (n-C4H9)4N, mto=monothiooxalato (C2O3S))
Ono, Y.
KURRI Progress Report, 2001,
[23] Heat capacity of the mixed-valence complex {[(n-C3H7)4n] [FeIIFeIII(dto)3]}∞, phase transition because of electron transfer, and a change in spin-state of the whole system
Sorai, M. (sorai@chem.sci.osaka-u.ac.jp), 2001, Wiley-VCH Verlag (40)
[24] Heat capacity of the mixed-valence complex {[(n-C3H7)4N][FeIIFeIII(dto)3]}x, phase transition because of electron transfer, and a change in spin-state of the whole system
Nakamoto, T
Miyazaki, Y
Itoi, M
Ono, Y
Kojima, N
Sorai, M
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2001, 40 (24) : 4716 - +
[25] Structural Insight into Order-Disorder Transition and Charge-Transfer Phase Transition in an Iron Mixed-Valence Complex (n-C3H7)4N[FeIIFeIII(dto)3] with a Two-Dimensional Honeycomb Network
Itoi, Miho
Okazawa, Atsushi
Yamaura, Jun-ichi
Maki, Sachiko
Komatsu, Tokutaro
Maurin, Isabelle
Codjovi, Epiphane
Boukheddaden, Kamel
Kojima, Norimichi
INORGANIC CHEMISTRY, 2018, 57 (21) : 13728 - 13738
[26] Charge transfer phase transition and ferromagnetism in a novel iron mixed-valence complex (n-C3H7)4N[FeIIFeIII(tto)3] (tto=C2OS3)
Enomoto, A
Kojima, N
SYNTHETIC METALS, 2005, 152 (1-3) : 457 - 460
[27] Study on the pressure induced charge transfer phase transition in (C5H11)4N(FeIIFeIII(C2O2S2)3) by means of μSR spectroscopy
Enomoto, Masaya
Kida, Noriyuki
Kojima, Norimichi
Watanabe, Isao
Suzuki, Takao
Ishii, Yasuyuki
POLYHEDRON, 2011, 30 (18) : 3137 - 3139
[28] Progress of Multi Functional Properties of Organic-Inorganic Hybrid System, A[FeIIFeIIIX3] (A = (n-CnH2n+1)4N, Spiropyran; X = C2O2S2, C2OS3, C2O3S)
Kojima, Norimichi
Enomoto, Masaya
Kida, Noriyuki
Kagesawa, Koichi
MATERIALS, 2010, 3 (05) : 3141 - 3187
[29] Structural and physical properties of the ferromagnetic tris-dithiooxalato compounds, A[MIICrIII(C2S2O2)3], with A+ = N(n-CnH2n+1)4+ (n=3-5) and P(C6H5)4+ and MII = Mn, Fe, Co, and Ni
Bradley, JM
Carling, SG
Visser, D
Day, P
Hautot, D
Long, GJ
INORGANIC CHEMISTRY, 2003, 42 (04) : 986 - 996
[30] Mixed-valence and neutral framework inorganic-organic hybrid materials:: Synthesis, characterization, and magnetic properties of [{Co(N(CH)4N)}(V2O5)2] and [{Co(N(CH)4N)}V2O6]
Khan, M. Ishaque
Yohannes, Elizabeth
Golub, Vladimir O.
O'Connor, Charles J.
Doedens, Robert J.
CHEMISTRY OF MATERIALS, 2007, 19 (20) : 4890 - 4895

← 1 2 3 4 5 →