The Impact of Coordination Distortion on Magnetic Properties of Co (II) Single-Ion Magnets With Trigonal Prism Coordination Geometry

Guo Peng; Yong Bo Peng; Guo Xing Zhou; Rong Yan Zhang; Ying Zhao Ma; Shuchang Luo; Xiao Ming Ren

doi:10.1002/aoc.7878

The Impact of Coordination Distortion on Magnetic Properties of Co (II) Single-Ion Magnets With Trigonal Prism Coordination Geometry

Guo Peng, Yong Bo Peng, Guo Xing Zhou, Rong Yan Zhang, Ying Zhao Ma, Shuchang Luo, Xiao Ming Ren

School of Chemistry and Moleculai Engineering

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

Abstract

Two Co (II) compounds [Co (abs)₂]·2H₂O (1) and [Co (pabs)₂] (2) (Habs = N-(pyridine-2′-yl methylene)-2-aminobenzene sulfonic acid, Hpabs = N-[(pyridine-2′-yl)(phenyl)methylene]-2-aminobenzene sulfonic acid) were synthesized by the introduction of sulfonate ligands with different substitutions. Both Co (II) ions are located in a trigonal prism coordination environment with different coordination distortions. Static magnetic studies and theoretical calculations found that easy-axis magnetic anisotropy is present in both complexes. The contributions of the negative D values are principally derived from the first quartet excited state. Dynamic magnetic investigations uncovered that both compounds have field-induced single-ion magnet (SIM) behavior and their magnetic relaxations mainly realize through Raman and direct pathways.

Original language	English
Article number	e7878
Journal	Applied Organometallic Chemistry
Volume	39
Issue number	3
DOIs	https://doi.org/10.1002/aoc.7878
State	Published - Mar 2025

Keywords

Co (II) complex
magnetic relaxation
single-ion magnet
trigonal prism

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10.1002/aoc.7878

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@article{627bd0293c2e4c6f8868538e3abf12e4,

title = "The Impact of Coordination Distortion on Magnetic Properties of Co (II) Single-Ion Magnets With Trigonal Prism Coordination Geometry",

abstract = "Two Co (II) compounds [Co (abs)2]·2H2O (1) and [Co (pabs)2] (2) (Habs = N-(pyridine-2′-yl methylene)-2-aminobenzene sulfonic acid, Hpabs = N-[(pyridine-2′-yl)(phenyl)methylene]-2-aminobenzene sulfonic acid) were synthesized by the introduction of sulfonate ligands with different substitutions. Both Co (II) ions are located in a trigonal prism coordination environment with different coordination distortions. Static magnetic studies and theoretical calculations found that easy-axis magnetic anisotropy is present in both complexes. The contributions of the negative D values are principally derived from the first quartet excited state. Dynamic magnetic investigations uncovered that both compounds have field-induced single-ion magnet (SIM) behavior and their magnetic relaxations mainly realize through Raman and direct pathways.",

keywords = "Co (II) complex, magnetic relaxation, single-ion magnet, trigonal prism",

author = "Guo Peng and Peng, {Yong Bo} and Zhou, {Guo Xing} and Zhang, {Rong Yan} and Ma, {Ying Zhao} and Shuchang Luo and Ren, {Xiao Ming}",

note = "Publisher Copyright: {\textcopyright} 2024 John Wiley & Sons Ltd.",

year = "2025",

month = mar,

doi = "10.1002/aoc.7878",

language = "英语",

volume = "39",

journal = "Applied Organometallic Chemistry",

issn = "0268-2605",

publisher = "John Wiley and Sons Ltd",

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T1 - The Impact of Coordination Distortion on Magnetic Properties of Co (II) Single-Ion Magnets With Trigonal Prism Coordination Geometry

AU - Peng, Guo

AU - Peng, Yong Bo

AU - Zhou, Guo Xing

AU - Zhang, Rong Yan

AU - Ma, Ying Zhao

AU - Luo, Shuchang

AU - Ren, Xiao Ming

PY - 2025/3

Y1 - 2025/3

N2 - Two Co (II) compounds [Co (abs)2]·2H2O (1) and [Co (pabs)2] (2) (Habs = N-(pyridine-2′-yl methylene)-2-aminobenzene sulfonic acid, Hpabs = N-[(pyridine-2′-yl)(phenyl)methylene]-2-aminobenzene sulfonic acid) were synthesized by the introduction of sulfonate ligands with different substitutions. Both Co (II) ions are located in a trigonal prism coordination environment with different coordination distortions. Static magnetic studies and theoretical calculations found that easy-axis magnetic anisotropy is present in both complexes. The contributions of the negative D values are principally derived from the first quartet excited state. Dynamic magnetic investigations uncovered that both compounds have field-induced single-ion magnet (SIM) behavior and their magnetic relaxations mainly realize through Raman and direct pathways.

AB - Two Co (II) compounds [Co (abs)2]·2H2O (1) and [Co (pabs)2] (2) (Habs = N-(pyridine-2′-yl methylene)-2-aminobenzene sulfonic acid, Hpabs = N-[(pyridine-2′-yl)(phenyl)methylene]-2-aminobenzene sulfonic acid) were synthesized by the introduction of sulfonate ligands with different substitutions. Both Co (II) ions are located in a trigonal prism coordination environment with different coordination distortions. Static magnetic studies and theoretical calculations found that easy-axis magnetic anisotropy is present in both complexes. The contributions of the negative D values are principally derived from the first quartet excited state. Dynamic magnetic investigations uncovered that both compounds have field-induced single-ion magnet (SIM) behavior and their magnetic relaxations mainly realize through Raman and direct pathways.

KW - Co (II) complex

KW - magnetic relaxation

KW - single-ion magnet

KW - trigonal prism

UR - http://www.scopus.com/inward/record.url?scp=85208938393&partnerID=8YFLogxK

U2 - 10.1002/aoc.7878

DO - 10.1002/aoc.7878

M3 - 文章

AN - SCOPUS:85208938393

SN - 0268-2605

VL - 39

JO - Applied Organometallic Chemistry

JF - Applied Organometallic Chemistry

IS - 3

M1 - e7878

ER -

The Impact of Coordination Distortion on Magnetic Properties of Co (II) Single-Ion Magnets With Trigonal Prism Coordination Geometry

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Keywords

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