Modulation of the magnetic dynamics in two air-stable sulfur-ligated dysprosium complexes via polymerization

Tian Han; Xiao Qin Wang; Tong Guo; Hong Sheng Cao; Wei Peng Chen; Ling He

doi:10.1039/d3dt00714f

Modulation of the magnetic dynamics in two air-stable sulfur-ligated dysprosium complexes via polymerization

Tian Han
, Xiao Qin Wang
, Tong Guo
, Hong Sheng Cao
, Wei Peng Chen
, Ling He

School of Chemistry

Xi'an Jiaotong University

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

7 Scopus citations

Abstract

Two air-stable sulfur-ligated dysprosium(iii) complexes [HN(Et)₃][Dy₂NaL₈] (1) and [DyNaL₄(MeOH)_x(H₂O)_2−x]_n (2) based on 2-pyridinethiol 1-oxide (HL) were synthesized and structurally characterized. Discrete 1 and polymeric 2 share the same anionic unit of [DyL₄]⁻ with the O₄S₄ coordination environment, but differ in the precise geometry with triangular dodecahedron geometry in 1 and biaugmented trigonal prism geometry in 2. The subtle change leads to observable temperature-independent relaxation for 2 while a faster relaxation with invisible peak for 1 at zero dc field. Under an optimal dc field, both display the typical Raman process with a smaller pre-factor and higher exponent for 2. Ab initio calculations reveal that the predicted energy barriers are 287 cm⁻¹ for 1 and 303 cm⁻¹ for 2. These results demonstrate the construction and magnetic modulation of air-stable sulfur-ligated Dy-SMM architectures.

Original language	English
Pages (from-to)	7551-7557
Number of pages	7
Journal	Dalton Transactions
Volume	52
Issue number	22
DOIs	https://doi.org/10.1039/d3dt00714f
State	Published - 2 May 2023

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title = "Modulation of the magnetic dynamics in two air-stable sulfur-ligated dysprosium complexes via polymerization",

abstract = "Two air-stable sulfur-ligated dysprosium(iii) complexes [HN(Et)3][Dy2NaL8] (1) and [DyNaL4(MeOH)x(H2O)2−x]n (2) based on 2-pyridinethiol 1-oxide (HL) were synthesized and structurally characterized. Discrete 1 and polymeric 2 share the same anionic unit of [DyL4]− with the O4S4 coordination environment, but differ in the precise geometry with triangular dodecahedron geometry in 1 and biaugmented trigonal prism geometry in 2. The subtle change leads to observable temperature-independent relaxation for 2 while a faster relaxation with invisible peak for 1 at zero dc field. Under an optimal dc field, both display the typical Raman process with a smaller pre-factor and higher exponent for 2. Ab initio calculations reveal that the predicted energy barriers are 287 cm−1 for 1 and 303 cm−1 for 2. These results demonstrate the construction and magnetic modulation of air-stable sulfur-ligated Dy-SMM architectures.",

author = "Tian Han and Wang, \{Xiao Qin\} and Tong Guo and Cao, \{Hong Sheng\} and Chen, \{Wei Peng\} and Ling He",

note = "Publisher Copyright: {\textcopyright} 2023 The Royal Society of Chemistry.",

year = "2023",

month = may,

day = "2",

doi = "10.1039/d3dt00714f",

language = "英语",

volume = "52",

pages = "7551--7557",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

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}

TY - JOUR

T1 - Modulation of the magnetic dynamics in two air-stable sulfur-ligated dysprosium complexes via polymerization

AU - Han, Tian

AU - Wang, Xiao Qin

AU - Guo, Tong

AU - Cao, Hong Sheng

AU - Chen, Wei Peng

AU - He, Ling

PY - 2023/5/2

Y1 - 2023/5/2

N2 - Two air-stable sulfur-ligated dysprosium(iii) complexes [HN(Et)3][Dy2NaL8] (1) and [DyNaL4(MeOH)x(H2O)2−x]n (2) based on 2-pyridinethiol 1-oxide (HL) were synthesized and structurally characterized. Discrete 1 and polymeric 2 share the same anionic unit of [DyL4]− with the O4S4 coordination environment, but differ in the precise geometry with triangular dodecahedron geometry in 1 and biaugmented trigonal prism geometry in 2. The subtle change leads to observable temperature-independent relaxation for 2 while a faster relaxation with invisible peak for 1 at zero dc field. Under an optimal dc field, both display the typical Raman process with a smaller pre-factor and higher exponent for 2. Ab initio calculations reveal that the predicted energy barriers are 287 cm−1 for 1 and 303 cm−1 for 2. These results demonstrate the construction and magnetic modulation of air-stable sulfur-ligated Dy-SMM architectures.

AB - Two air-stable sulfur-ligated dysprosium(iii) complexes [HN(Et)3][Dy2NaL8] (1) and [DyNaL4(MeOH)x(H2O)2−x]n (2) based on 2-pyridinethiol 1-oxide (HL) were synthesized and structurally characterized. Discrete 1 and polymeric 2 share the same anionic unit of [DyL4]− with the O4S4 coordination environment, but differ in the precise geometry with triangular dodecahedron geometry in 1 and biaugmented trigonal prism geometry in 2. The subtle change leads to observable temperature-independent relaxation for 2 while a faster relaxation with invisible peak for 1 at zero dc field. Under an optimal dc field, both display the typical Raman process with a smaller pre-factor and higher exponent for 2. Ab initio calculations reveal that the predicted energy barriers are 287 cm−1 for 1 and 303 cm−1 for 2. These results demonstrate the construction and magnetic modulation of air-stable sulfur-ligated Dy-SMM architectures.

UR - https://www.scopus.com/pages/publications/85159676669

U2 - 10.1039/d3dt00714f

DO - 10.1039/d3dt00714f

M3 - 文章

C2 - 37184384

AN - SCOPUS:85159676669

SN - 1477-9226

VL - 52

SP - 7551

EP - 7557

JO - Dalton Transactions

JF - Dalton Transactions

IS - 22

ER -

Modulation of the magnetic dynamics in two air-stable sulfur-ligated dysprosium complexes via polymerization

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