FT pulsed ESR/electron spin transient nutation (ESTN) spectroscopy applied to high-spin systems in solids; Direct evidence of a topologically controlled high-spin polymer as models for quasi ID organic ferro- and superpara-magnets

Takeji Takui, Kazunobu Sato, Daisuke Shiomi, Koichi Itoh, Takashi Kaneko, Eishun Tsuchida, Hiroyuki Nishide

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

FT Pulsed ESR/Electron Spin Transient Nutation(ESTN) Spectroscopy has been, for the first time, extended to amorphous and powder states of materials. Recently, organic high-spin polymers and clusters have emerged. With the increasing molecular spin quantum number S and molecular weight of the polymers, cw ESR spectroscopy manifests its inherent disadvantages in discriminating high spins from S=1/2 and in determining the S's for the complex mixture of various spin assemblages. An electron spin transient nutation (ESTN) method based on pulsed ESR spectroscopy has been for the first time applied to a quasi ID neutral high-spin polymers (A) as one of the most complex amorphous spin assemblages, identifying that the first neutral high-spin polymer A is comprised of high-spin assemblages characterized by the even S's greater than 1/2. The molecular quantum spin number S have been identified up to S=4, showing direct evidence of the occurrence of a high-spin polymer with a π-topologically controlled spin polarization. Eelectron spin transient nutation spectroscopy is facile and useful method for the exclusive identification of S and ESR transitions even for the cases of apparently vanishing fine-structure splittings and for spin systems with residual fine-structure terms in the spin Hamiltonian Fundamental bases for the transient nutation method are described, emphasizing inherent advantages in the nutation spectroscopy from the methodological viewpoint. The salient feature of multiple-quantum nutations have been disclosed in this work.

Original languageEnglish
Pages (from-to)155-176
Number of pages22
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume278-279
Publication statusPublished - 1996

Fingerprint

nutation
electron spin
Magnets
Paramagnetic resonance
Polymers
magnets
Spectroscopy
Electrons
polymers
spectroscopy
Hamiltonians
Spin polarization
Complex Mixtures
Powders
Molecular weight
fine structure
quantum numbers

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

@article{9f63503fff37403db686c6455e09b8f5,
title = "FT pulsed ESR/electron spin transient nutation (ESTN) spectroscopy applied to high-spin systems in solids; Direct evidence of a topologically controlled high-spin polymer as models for quasi ID organic ferro- and superpara-magnets",
abstract = "FT Pulsed ESR/Electron Spin Transient Nutation(ESTN) Spectroscopy has been, for the first time, extended to amorphous and powder states of materials. Recently, organic high-spin polymers and clusters have emerged. With the increasing molecular spin quantum number S and molecular weight of the polymers, cw ESR spectroscopy manifests its inherent disadvantages in discriminating high spins from S=1/2 and in determining the S's for the complex mixture of various spin assemblages. An electron spin transient nutation (ESTN) method based on pulsed ESR spectroscopy has been for the first time applied to a quasi ID neutral high-spin polymers (A) as one of the most complex amorphous spin assemblages, identifying that the first neutral high-spin polymer A is comprised of high-spin assemblages characterized by the even S's greater than 1/2. The molecular quantum spin number S have been identified up to S=4, showing direct evidence of the occurrence of a high-spin polymer with a π-topologically controlled spin polarization. Eelectron spin transient nutation spectroscopy is facile and useful method for the exclusive identification of S and ESR transitions even for the cases of apparently vanishing fine-structure splittings and for spin systems with residual fine-structure terms in the spin Hamiltonian Fundamental bases for the transient nutation method are described, emphasizing inherent advantages in the nutation spectroscopy from the methodological viewpoint. The salient feature of multiple-quantum nutations have been disclosed in this work.",
author = "Takeji Takui and Kazunobu Sato and Daisuke Shiomi and Koichi Itoh and Takashi Kaneko and Eishun Tsuchida and Hiroyuki Nishide",
year = "1996",
language = "English",
volume = "278-279",
pages = "155--176",
journal = "Molecular Crystals and Liquid Crystals",
issn = "1542-1406",
publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - FT pulsed ESR/electron spin transient nutation (ESTN) spectroscopy applied to high-spin systems in solids; Direct evidence of a topologically controlled high-spin polymer as models for quasi ID organic ferro- and superpara-magnets

AU - Takui, Takeji

AU - Sato, Kazunobu

AU - Shiomi, Daisuke

AU - Itoh, Koichi

AU - Kaneko, Takashi

AU - Tsuchida, Eishun

AU - Nishide, Hiroyuki

PY - 1996

Y1 - 1996

N2 - FT Pulsed ESR/Electron Spin Transient Nutation(ESTN) Spectroscopy has been, for the first time, extended to amorphous and powder states of materials. Recently, organic high-spin polymers and clusters have emerged. With the increasing molecular spin quantum number S and molecular weight of the polymers, cw ESR spectroscopy manifests its inherent disadvantages in discriminating high spins from S=1/2 and in determining the S's for the complex mixture of various spin assemblages. An electron spin transient nutation (ESTN) method based on pulsed ESR spectroscopy has been for the first time applied to a quasi ID neutral high-spin polymers (A) as one of the most complex amorphous spin assemblages, identifying that the first neutral high-spin polymer A is comprised of high-spin assemblages characterized by the even S's greater than 1/2. The molecular quantum spin number S have been identified up to S=4, showing direct evidence of the occurrence of a high-spin polymer with a π-topologically controlled spin polarization. Eelectron spin transient nutation spectroscopy is facile and useful method for the exclusive identification of S and ESR transitions even for the cases of apparently vanishing fine-structure splittings and for spin systems with residual fine-structure terms in the spin Hamiltonian Fundamental bases for the transient nutation method are described, emphasizing inherent advantages in the nutation spectroscopy from the methodological viewpoint. The salient feature of multiple-quantum nutations have been disclosed in this work.

AB - FT Pulsed ESR/Electron Spin Transient Nutation(ESTN) Spectroscopy has been, for the first time, extended to amorphous and powder states of materials. Recently, organic high-spin polymers and clusters have emerged. With the increasing molecular spin quantum number S and molecular weight of the polymers, cw ESR spectroscopy manifests its inherent disadvantages in discriminating high spins from S=1/2 and in determining the S's for the complex mixture of various spin assemblages. An electron spin transient nutation (ESTN) method based on pulsed ESR spectroscopy has been for the first time applied to a quasi ID neutral high-spin polymers (A) as one of the most complex amorphous spin assemblages, identifying that the first neutral high-spin polymer A is comprised of high-spin assemblages characterized by the even S's greater than 1/2. The molecular quantum spin number S have been identified up to S=4, showing direct evidence of the occurrence of a high-spin polymer with a π-topologically controlled spin polarization. Eelectron spin transient nutation spectroscopy is facile and useful method for the exclusive identification of S and ESR transitions even for the cases of apparently vanishing fine-structure splittings and for spin systems with residual fine-structure terms in the spin Hamiltonian Fundamental bases for the transient nutation method are described, emphasizing inherent advantages in the nutation spectroscopy from the methodological viewpoint. The salient feature of multiple-quantum nutations have been disclosed in this work.

UR - http://www.scopus.com/inward/record.url?scp=0029696082&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029696082&partnerID=8YFLogxK

M3 - Article

VL - 278-279

SP - 155

EP - 176

JO - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -