Mechanism of reversible spin transition with a thermal hysteresis loop in [FeIII(qsal)2][Ni(dmise)2] · 2CH3CN: Selenium analogue of the precursor of an Fe(III) spin-crossover molecular conducting system

Kazuyuki Takahashi, Hatsumi Mori, Hayao Kobayashi, Osamu Sato

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A novel Fe(III) spin-crossover complex, [Fe(qsal)2][Ni(dmise)2] · 2CH3CN 1 [qsalH = N-(8-quinolyl)-salicylaldimine, dmise = 4,5-dithiolato-1,3-dithiole-2-selone] was prepared. The magnetic susceptibility measurements revealed 1 exhibited a cooperative spin transition with a thermal hysteresis loop of 15 K. The high and the low temperature structures of 1 indicated three-dimensional intermolecular π-π interactions play a key role in the cooperative spin transition, accompanying a reversible molecular slipping of π-dimer of Ni(dmise)2 along the molecular long axis. The transfer integral calculation for 1 suggested the π-dimer of Ni(dmise)2 is in the spin singlet state.

Original languageEnglish
Pages (from-to)1776-1781
Number of pages6
JournalPolyhedron
Volume28
Issue number9-10
DOIs
Publication statusPublished - Jun 22 2009

Fingerprint

Selenium
Hysteresis loops
selenium
Dimers
crossovers
hysteresis
analogs
conduction
Magnetic susceptibility
dimers
magnetic permeability
Temperature
Hot Temperature
interactions

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Mechanism of reversible spin transition with a thermal hysteresis loop in [FeIII(qsal)2][Ni(dmise)2] · 2CH3CN : Selenium analogue of the precursor of an Fe(III) spin-crossover molecular conducting system. / Takahashi, Kazuyuki; Mori, Hatsumi; Kobayashi, Hayao; Sato, Osamu.

In: Polyhedron, Vol. 28, No. 9-10, 22.06.2009, p. 1776-1781.

Research output: Contribution to journalArticle

@article{4ededee095894dca940d78662d046005,
title = "Mechanism of reversible spin transition with a thermal hysteresis loop in [FeIII(qsal)2][Ni(dmise)2] · 2CH3CN: Selenium analogue of the precursor of an Fe(III) spin-crossover molecular conducting system",
abstract = "A novel Fe(III) spin-crossover complex, [Fe(qsal)2][Ni(dmise)2] · 2CH3CN 1 [qsalH = N-(8-quinolyl)-salicylaldimine, dmise = 4,5-dithiolato-1,3-dithiole-2-selone] was prepared. The magnetic susceptibility measurements revealed 1 exhibited a cooperative spin transition with a thermal hysteresis loop of 15 K. The high and the low temperature structures of 1 indicated three-dimensional intermolecular π-π interactions play a key role in the cooperative spin transition, accompanying a reversible molecular slipping of π-dimer of Ni(dmise)2 along the molecular long axis. The transfer integral calculation for 1 suggested the π-dimer of Ni(dmise)2 is in the spin singlet state.",
author = "Kazuyuki Takahashi and Hatsumi Mori and Hayao Kobayashi and Osamu Sato",
year = "2009",
month = "6",
day = "22",
doi = "10.1016/j.poly.2008.11.047",
language = "English",
volume = "28",
pages = "1776--1781",
journal = "Polyhedron",
issn = "0277-5387",
publisher = "Elsevier Limited",
number = "9-10",

}

TY - JOUR

T1 - Mechanism of reversible spin transition with a thermal hysteresis loop in [FeIII(qsal)2][Ni(dmise)2] · 2CH3CN

T2 - Selenium analogue of the precursor of an Fe(III) spin-crossover molecular conducting system

AU - Takahashi, Kazuyuki

AU - Mori, Hatsumi

AU - Kobayashi, Hayao

AU - Sato, Osamu

PY - 2009/6/22

Y1 - 2009/6/22

N2 - A novel Fe(III) spin-crossover complex, [Fe(qsal)2][Ni(dmise)2] · 2CH3CN 1 [qsalH = N-(8-quinolyl)-salicylaldimine, dmise = 4,5-dithiolato-1,3-dithiole-2-selone] was prepared. The magnetic susceptibility measurements revealed 1 exhibited a cooperative spin transition with a thermal hysteresis loop of 15 K. The high and the low temperature structures of 1 indicated three-dimensional intermolecular π-π interactions play a key role in the cooperative spin transition, accompanying a reversible molecular slipping of π-dimer of Ni(dmise)2 along the molecular long axis. The transfer integral calculation for 1 suggested the π-dimer of Ni(dmise)2 is in the spin singlet state.

AB - A novel Fe(III) spin-crossover complex, [Fe(qsal)2][Ni(dmise)2] · 2CH3CN 1 [qsalH = N-(8-quinolyl)-salicylaldimine, dmise = 4,5-dithiolato-1,3-dithiole-2-selone] was prepared. The magnetic susceptibility measurements revealed 1 exhibited a cooperative spin transition with a thermal hysteresis loop of 15 K. The high and the low temperature structures of 1 indicated three-dimensional intermolecular π-π interactions play a key role in the cooperative spin transition, accompanying a reversible molecular slipping of π-dimer of Ni(dmise)2 along the molecular long axis. The transfer integral calculation for 1 suggested the π-dimer of Ni(dmise)2 is in the spin singlet state.

UR - http://www.scopus.com/inward/record.url?scp=67349235599&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67349235599&partnerID=8YFLogxK

U2 - 10.1016/j.poly.2008.11.047

DO - 10.1016/j.poly.2008.11.047

M3 - Article

AN - SCOPUS:67349235599

VL - 28

SP - 1776

EP - 1781

JO - Polyhedron

JF - Polyhedron

SN - 0277-5387

IS - 9-10

ER -