Hendecanuclear [Cu6Gd5] magnetic cooler with high molecular symmetry of D3h

Weipeng Chen; Guojun Zhou; Zhuolun Gou; Sen Wang; Yuanqi Zhai; Tian Han; Jürgen Schnack; Yanzhen Zheng

doi:10.1016/j.cclet.2020.05.018

Hendecanuclear [Cu₆Gd₅] magnetic cooler with high molecular symmetry of D_3h

Weipeng Chen
, Guojun Zhou
, Zhuolun Gou
, Sen Wang
, Yuanqi Zhai
, Tian Han
, Jürgen Schnack
, Yanzhen Zheng

Xi'an Jiaotong University
Shaanxi Normal University
Bielefeld University

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

7 Scopus citations

Abstract

A new family of isostructural 3d-4f polymetallic complexes, formulated as [Cu₆Ln₅(μ₃−OH)₉ (C₄H₈O₂N)₆(C₅H₄ON)₆(H₂O)₉]·(ClO₄)₆·(H₂O)₂₂ (Ln = Pr, 1; Nd, 2; Sm, 3; Eu, 4; Gd, 5), was successfully isolated through the simple hydrolysis reaction of 2-aminoisobutyric acid, 2-hydroxypyridine, Cu(CH₃COO)₂·H₂O, and Ln(ClO₄)₃·6H₂O. Notably, the [Cu₆Ln₅] clusters with high molecular symmetry of D_3h are rare examples of 2-aminoisobutyric acid-based 3d-4f clusters. The successful theoretical modeling of 5 yielded that the Gd-Gd exchange is of order 0.2 K, whereas the Gd-Cu exchange is an order of magnitude larger. Magnetization data collected for complex 5 yield a magnetic entropy change (−ΔS_m) of 19.6 J kg⁻¹ K⁻¹ at 3 K and 7 T, which may be attributed to the weak magnetic interactions between the component metal ions.

Original language	English
Pages (from-to)	838-841
Number of pages	4
Journal	Chinese Chemical Letters
Volume	32
Issue number	2
DOIs	https://doi.org/10.1016/j.cclet.2020.05.018
State	Published - Feb 2021

Keywords

Hydrothermal reaction
Lanthanide elements
Magnetic interactions
Magnetic refrigeration
Polymetallic complexes

Access to Document

10.1016/j.cclet.2020.05.018

Cite this

@article{2e05be2beffb4bf3ad20b275946366b1,

title = "Hendecanuclear [Cu6Gd5] magnetic cooler with high molecular symmetry of D3h",

abstract = "A new family of isostructural 3d-4f polymetallic complexes, formulated as [Cu6Ln5(μ3−OH)9 (C4H8O2N)6(C5H4ON)6(H2O)9]·(ClO4)6·(H2O)22 (Ln = Pr, 1; Nd, 2; Sm, 3; Eu, 4; Gd, 5), was successfully isolated through the simple hydrolysis reaction of 2-aminoisobutyric acid, 2-hydroxypyridine, Cu(CH3COO)2·H2O, and Ln(ClO4)3·6H2O. Notably, the [Cu6Ln5] clusters with high molecular symmetry of D3h are rare examples of 2-aminoisobutyric acid-based 3d-4f clusters. The successful theoretical modeling of 5 yielded that the Gd-Gd exchange is of order 0.2 K, whereas the Gd-Cu exchange is an order of magnitude larger. Magnetization data collected for complex 5 yield a magnetic entropy change (−ΔSm) of 19.6 J kg−1 K−1 at 3 K and 7 T, which may be attributed to the weak magnetic interactions between the component metal ions.",

keywords = "Hydrothermal reaction, Lanthanide elements, Magnetic interactions, Magnetic refrigeration, Polymetallic complexes",

author = "Weipeng Chen and Guojun Zhou and Zhuolun Gou and Sen Wang and Yuanqi Zhai and Tian Han and J{\"u}rgen Schnack and Yanzhen Zheng",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = feb,

doi = "10.1016/j.cclet.2020.05.018",

language = "英语",

volume = "32",

pages = "838--841",

journal = "Chinese Chemical Letters",

issn = "1001-8417",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Hendecanuclear [Cu6Gd5] magnetic cooler with high molecular symmetry of D3h

AU - Chen, Weipeng

AU - Zhou, Guojun

AU - Gou, Zhuolun

AU - Wang, Sen

AU - Zhai, Yuanqi

AU - Han, Tian

AU - Schnack, Jürgen

AU - Zheng, Yanzhen

PY - 2021/2

Y1 - 2021/2

N2 - A new family of isostructural 3d-4f polymetallic complexes, formulated as [Cu6Ln5(μ3−OH)9 (C4H8O2N)6(C5H4ON)6(H2O)9]·(ClO4)6·(H2O)22 (Ln = Pr, 1; Nd, 2; Sm, 3; Eu, 4; Gd, 5), was successfully isolated through the simple hydrolysis reaction of 2-aminoisobutyric acid, 2-hydroxypyridine, Cu(CH3COO)2·H2O, and Ln(ClO4)3·6H2O. Notably, the [Cu6Ln5] clusters with high molecular symmetry of D3h are rare examples of 2-aminoisobutyric acid-based 3d-4f clusters. The successful theoretical modeling of 5 yielded that the Gd-Gd exchange is of order 0.2 K, whereas the Gd-Cu exchange is an order of magnitude larger. Magnetization data collected for complex 5 yield a magnetic entropy change (−ΔSm) of 19.6 J kg−1 K−1 at 3 K and 7 T, which may be attributed to the weak magnetic interactions between the component metal ions.

AB - A new family of isostructural 3d-4f polymetallic complexes, formulated as [Cu6Ln5(μ3−OH)9 (C4H8O2N)6(C5H4ON)6(H2O)9]·(ClO4)6·(H2O)22 (Ln = Pr, 1; Nd, 2; Sm, 3; Eu, 4; Gd, 5), was successfully isolated through the simple hydrolysis reaction of 2-aminoisobutyric acid, 2-hydroxypyridine, Cu(CH3COO)2·H2O, and Ln(ClO4)3·6H2O. Notably, the [Cu6Ln5] clusters with high molecular symmetry of D3h are rare examples of 2-aminoisobutyric acid-based 3d-4f clusters. The successful theoretical modeling of 5 yielded that the Gd-Gd exchange is of order 0.2 K, whereas the Gd-Cu exchange is an order of magnitude larger. Magnetization data collected for complex 5 yield a magnetic entropy change (−ΔSm) of 19.6 J kg−1 K−1 at 3 K and 7 T, which may be attributed to the weak magnetic interactions between the component metal ions.

KW - Hydrothermal reaction

KW - Lanthanide elements

KW - Magnetic interactions

KW - Magnetic refrigeration

KW - Polymetallic complexes

UR - https://www.scopus.com/pages/publications/85086649562

U2 - 10.1016/j.cclet.2020.05.018

DO - 10.1016/j.cclet.2020.05.018

M3 - 文章

AN - SCOPUS:85086649562

SN - 1001-8417

VL - 32

SP - 838

EP - 841

JO - Chinese Chemical Letters

JF - Chinese Chemical Letters

IS - 2

ER -

Hendecanuclear [Cu₆Gd₅] magnetic cooler with high molecular symmetry of D_3h

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this