Haldane gap system: Structure and magnetic properties of azido-bridged nickel complex

M. Yamashita; K. Inoue; T. Ohishi; H. Miyamae; T. Takeuchi; T. Yosida

doi:10.1016/0379-6779(94)03127-R

Haldane gap system: Structure and magnetic properties of azido-bridged nickel complex

M. Yamashita, K. Inoue, T. Ohishi, H. Miyamae, T. Takeuchi, T. Yosida

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

A new Haldane gap compound, Ni(dmpn)₂N₃(ClO₄) (dmpn=2,2-dimethyl-1,3-propanediamine) has been synthesized, and its structure and magnetic properties have been investigated. It has an azido-bridged linear-chain structure where each chain is separated to each other by counterions ClO₄^-. The Haldane gap and J value of this compound are estimated to be 21.6 K and -70.6 K, respectively. These absolute values are larger than those of Ni(en)₂(NO₂)(ClO₄) (hereafter abbreviated as NENP) which has a NO₂^--bridged structure and has been extensively investigated so far.

Original language	English
Pages (from-to)	1961-1964
Number of pages	4
Journal	Synthetic Metals
Volume	71
Issue number	1-3
DOIs	https://doi.org/10.1016/0379-6779(94)03127-R
Publication status	Published - 1995 Apr 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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@article{ff4b15d8a27c4a18b2b8734d216e744c,

title = "Haldane gap system: Structure and magnetic properties of azido-bridged nickel complex",

abstract = "A new Haldane gap compound, Ni(dmpn)2N3(ClO4) (dmpn=2,2-dimethyl-1,3-propanediamine) has been synthesized, and its structure and magnetic properties have been investigated. It has an azido-bridged linear-chain structure where each chain is separated to each other by counterions ClO4-. The Haldane gap and J value of this compound are estimated to be 21.6 K and -70.6 K, respectively. These absolute values are larger than those of Ni(en)2(NO2)(ClO4) (hereafter abbreviated as NENP) which has a NO2--bridged structure and has been extensively investigated so far.",

author = "M. Yamashita and K. Inoue and T. Ohishi and H. Miyamae and T. Takeuchi and T. Yosida",

note = "Funding Information: NENP and NINO. This is due to the stronger coordination ability of N{\textquoteright}J-group compared with that of Non-group. Moreover, in the same N,--bridged compounds, the absolute values of J and Eg of NINAZ are larger than those of this compound. This is due to the longer N-N3 distances in this compound, which might be caused by the bulkiness of the in-plane ligand. From these results, it has been found that the magnitude of the Haldane gaps can be controlled by substituting the bridging group and in-plane ligands. This work is supported by Grant-in-Aid for Scientific Research on Priority Area “Molecular Magnetism” from the Ministry of Education, Science and",

year = "1995",

month = apr,

day = "1",

doi = "10.1016/0379-6779(94)03127-R",

language = "English",

volume = "71",

pages = "1961--1964",

journal = "Synthetic Metals",

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TY - JOUR

T1 - Haldane gap system

T2 - Structure and magnetic properties of azido-bridged nickel complex

AU - Yamashita, M.

AU - Inoue, K.

AU - Ohishi, T.

AU - Miyamae, H.

AU - Takeuchi, T.

AU - Yosida, T.

N1 - Funding Information: NENP and NINO. This is due to the stronger coordination ability of N’J-group compared with that of Non-group. Moreover, in the same N,--bridged compounds, the absolute values of J and Eg of NINAZ are larger than those of this compound. This is due to the longer N-N3 distances in this compound, which might be caused by the bulkiness of the in-plane ligand. From these results, it has been found that the magnitude of the Haldane gaps can be controlled by substituting the bridging group and in-plane ligands. This work is supported by Grant-in-Aid for Scientific Research on Priority Area “Molecular Magnetism” from the Ministry of Education, Science and

PY - 1995/4/1

Y1 - 1995/4/1

N2 - A new Haldane gap compound, Ni(dmpn)2N3(ClO4) (dmpn=2,2-dimethyl-1,3-propanediamine) has been synthesized, and its structure and magnetic properties have been investigated. It has an azido-bridged linear-chain structure where each chain is separated to each other by counterions ClO4-. The Haldane gap and J value of this compound are estimated to be 21.6 K and -70.6 K, respectively. These absolute values are larger than those of Ni(en)2(NO2)(ClO4) (hereafter abbreviated as NENP) which has a NO2--bridged structure and has been extensively investigated so far.

AB - A new Haldane gap compound, Ni(dmpn)2N3(ClO4) (dmpn=2,2-dimethyl-1,3-propanediamine) has been synthesized, and its structure and magnetic properties have been investigated. It has an azido-bridged linear-chain structure where each chain is separated to each other by counterions ClO4-. The Haldane gap and J value of this compound are estimated to be 21.6 K and -70.6 K, respectively. These absolute values are larger than those of Ni(en)2(NO2)(ClO4) (hereafter abbreviated as NENP) which has a NO2--bridged structure and has been extensively investigated so far.

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M3 - Article

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VL - 71

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EP - 1964

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

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ER -

Haldane gap system: Structure and magnetic properties of azido-bridged nickel complex

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