Storing spin-crossover and LC phase transitions information by hybridizing spin-crossover complexes with a thermotropic polymer matrix - A novel case of multiple switching

Seong Hoon Jeong, Kyu Nam Kim, Jun Sung Kang, Chang Seop Hong, Dong Hoon Choi, Jung Il Jin, Il Woo Park, Min Gyu Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have prepared two new spin-crossover (SCO) Fe(II) complexes, [Fe(II)(ODT)3](p-tol)2(I) and [Fe(II)(HET)3](p-tol)2(II). And they were blended with a liquid crystalline (LC) poly(oxetane) (POx). Thermal and spin crossover behavior of the composites then were studied by using a superconducting quantum interference device (SQUID), differential scanning calorimetry (DSC) and extended X-ray absorption fine structure (EXAFS) spectroscopy. When composites carried higher than 20wt.% of the Fe(II) complexes, they revealed a reversible spin crossover for the low spin (LS)high spin (HS) transition in addition to the thermal transitions, i.e., glass transition and isotropization, of the LC polymer matrix.

Original languageEnglish
Pages (from-to)3-10
Number of pages8
JournalMolecular Crystals and Liquid Crystals
Volume471
Issue number1
DOIs
Publication statusPublished - 2007 Jan 1

Fingerprint

Polymer matrix
crossovers
Phase transitions
Extended X ray absorption fine structure spectroscopy
Crystalline materials
Liquid crystal polymers
SQUIDs
Composite materials
polymers
Liquids
matrices
liquids
Glass transition
Differential scanning calorimetry
composite materials
heat measurement
fine structure
Hot Temperature
interference
scanning

Keywords

  • Fe(II) complex
  • Hybrid
  • LC polymer
  • Multiple switching
  • SCO (spin crossover)

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Storing spin-crossover and LC phase transitions information by hybridizing spin-crossover complexes with a thermotropic polymer matrix - A novel case of multiple switching. / Jeong, Seong Hoon; Kim, Kyu Nam; Kang, Jun Sung; Hong, Chang Seop; Choi, Dong Hoon; Jin, Jung Il; Park, Il Woo; Kim, Min Gyu.

In: Molecular Crystals and Liquid Crystals, Vol. 471, No. 1, 01.01.2007, p. 3-10.

Research output: Contribution to journalArticle

@article{7acb4ac838a744e09aef7dae3be455e3,
title = "Storing spin-crossover and LC phase transitions information by hybridizing spin-crossover complexes with a thermotropic polymer matrix - A novel case of multiple switching",
abstract = "We have prepared two new spin-crossover (SCO) Fe(II) complexes, [Fe(II)(ODT)3](p-tol)2(I) and [Fe(II)(HET)3](p-tol)2(II). And they were blended with a liquid crystalline (LC) poly(oxetane) (POx). Thermal and spin crossover behavior of the composites then were studied by using a superconducting quantum interference device (SQUID), differential scanning calorimetry (DSC) and extended X-ray absorption fine structure (EXAFS) spectroscopy. When composites carried higher than 20wt.{\%} of the Fe(II) complexes, they revealed a reversible spin crossover for the low spin (LS)high spin (HS) transition in addition to the thermal transitions, i.e., glass transition and isotropization, of the LC polymer matrix.",
keywords = "Fe(II) complex, Hybrid, LC polymer, Multiple switching, SCO (spin crossover)",
author = "Jeong, {Seong Hoon} and Kim, {Kyu Nam} and Kang, {Jun Sung} and Hong, {Chang Seop} and Choi, {Dong Hoon} and Jin, {Jung Il} and Park, {Il Woo} and Kim, {Min Gyu}",
year = "2007",
month = "1",
day = "1",
doi = "10.1080/15421400701544422",
language = "English",
volume = "471",
pages = "3--10",
journal = "Molecular Crystals and Liquid Crystals",
issn = "1542-1406",
publisher = "Taylor and Francis Ltd.",
number = "1",

}

TY - JOUR

T1 - Storing spin-crossover and LC phase transitions information by hybridizing spin-crossover complexes with a thermotropic polymer matrix - A novel case of multiple switching

AU - Jeong, Seong Hoon

AU - Kim, Kyu Nam

AU - Kang, Jun Sung

AU - Hong, Chang Seop

AU - Choi, Dong Hoon

AU - Jin, Jung Il

AU - Park, Il Woo

AU - Kim, Min Gyu

PY - 2007/1/1

Y1 - 2007/1/1

N2 - We have prepared two new spin-crossover (SCO) Fe(II) complexes, [Fe(II)(ODT)3](p-tol)2(I) and [Fe(II)(HET)3](p-tol)2(II). And they were blended with a liquid crystalline (LC) poly(oxetane) (POx). Thermal and spin crossover behavior of the composites then were studied by using a superconducting quantum interference device (SQUID), differential scanning calorimetry (DSC) and extended X-ray absorption fine structure (EXAFS) spectroscopy. When composites carried higher than 20wt.% of the Fe(II) complexes, they revealed a reversible spin crossover for the low spin (LS)high spin (HS) transition in addition to the thermal transitions, i.e., glass transition and isotropization, of the LC polymer matrix.

AB - We have prepared two new spin-crossover (SCO) Fe(II) complexes, [Fe(II)(ODT)3](p-tol)2(I) and [Fe(II)(HET)3](p-tol)2(II). And they were blended with a liquid crystalline (LC) poly(oxetane) (POx). Thermal and spin crossover behavior of the composites then were studied by using a superconducting quantum interference device (SQUID), differential scanning calorimetry (DSC) and extended X-ray absorption fine structure (EXAFS) spectroscopy. When composites carried higher than 20wt.% of the Fe(II) complexes, they revealed a reversible spin crossover for the low spin (LS)high spin (HS) transition in addition to the thermal transitions, i.e., glass transition and isotropization, of the LC polymer matrix.

KW - Fe(II) complex

KW - Hybrid

KW - LC polymer

KW - Multiple switching

KW - SCO (spin crossover)

UR - http://www.scopus.com/inward/record.url?scp=34848861617&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34848861617&partnerID=8YFLogxK

U2 - 10.1080/15421400701544422

DO - 10.1080/15421400701544422

M3 - Article

AN - SCOPUS:34848861617

VL - 471

SP - 3

EP - 10

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

IS - 1

ER -