Exploiting complementary ligands for the construction of square antiprismatic monometallic lanthanide SMMs

Yushu Jiao; Sidra Sarwar; Sergio Sanz; Jan van Leusen; Natalya V. Izarova; Cameron L. Campbell; Euan K. Brechin; Scott J. Dalgarno; Paul Kögerler

doi:10.1039/d1dt00359c

Exploiting complementary ligands for the construction of square antiprismatic monometallic lanthanide SMMs

Yushu Jiao, Sidra Sarwar, Sergio Sanz, Jan van Leusen, Natalya V. Izarova, Cameron L. Campbell, Euan K. Brechin, Scott J. Dalgarno, Paul Kögerler

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Abstract

The methylation of p-tert-butylcalix[4]arene in the distal 1,3-phenolic sites provides the ligand H₂L = {p-tert-butylcalix[4](OMe)₂(OH)₂arene} that enables construction of heteroleptic mononuclear lanthanide complexes. The reaction of (N(nBu)₄)(acac) (Hacac = acetylacetone), M^IIICl₃ and H₂L under Schlenk conditions results in the formation of a family of (N(nBu)4)[M^IIIL(acac)₂] complexes where M = Y (1), Gd (2), Tb (3) and Dy (4). The metal ions are eight-coordinate in distorted square-antiprismatic coordination geometries, resulting in slow relaxation of the magnetisation for the Tb derivative.

Original language	English
Pages (from-to)	9648-9654
Number of pages	7
Journal	Dalton Transactions
Volume	50
Issue number	27
Early online date	18 Jun 2021
DOIs	https://doi.org/10.1039/d1dt00359c
Publication status	Published - 21 Jul 2021

ASJC Scopus subject areas

Inorganic Chemistry

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title = "Exploiting complementary ligands for the construction of square antiprismatic monometallic lanthanide SMMs",

abstract = "The methylation of p-tert-butylcalix[4]arene in the distal 1,3-phenolic sites provides the ligand H2L = {p-tert-butylcalix[4](OMe)2(OH)2arene} that enables construction of heteroleptic mononuclear lanthanide complexes. The reaction of (N(nBu)4)(acac) (Hacac = acetylacetone), MIIICl3 and H2L under Schlenk conditions results in the formation of a family of (N(nBu)4)[MIIIL(acac)2] complexes where M = Y (1), Gd (2), Tb (3) and Dy (4). The metal ions are eight-coordinate in distorted square-antiprismatic coordination geometries, resulting in slow relaxation of the magnetisation for the Tb derivative.",

author = "Yushu Jiao and Sidra Sarwar and Sergio Sanz and {van Leusen}, Jan and Izarova, {Natalya V.} and Campbell, {Cameron L.} and Brechin, {Euan K.} and Dalgarno, {Scott J.} and Paul K{\"o}gerler",

note = "Funding Information: We thank the Chinese Scholarship Council (CSC) and the Punjab Educational Endowment Fund (PEEF) for Ms Yushu Jiao and Sidra Sarwar scholarships. EKB thanks the EPSRC (EP/N01331X/1). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",

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doi = "10.1039/d1dt00359c",

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T1 - Exploiting complementary ligands for the construction of square antiprismatic monometallic lanthanide SMMs

AU - Jiao, Yushu

AU - Sarwar, Sidra

AU - Sanz, Sergio

AU - van Leusen, Jan

AU - Izarova, Natalya V.

AU - Campbell, Cameron L.

AU - Brechin, Euan K.

AU - Dalgarno, Scott J.

AU - Kögerler, Paul

N1 - Funding Information: We thank the Chinese Scholarship Council (CSC) and the Punjab Educational Endowment Fund (PEEF) for Ms Yushu Jiao and Sidra Sarwar scholarships. EKB thanks the EPSRC (EP/N01331X/1). Publisher Copyright: © The Royal Society of Chemistry 2021.

PY - 2021/7/21

Y1 - 2021/7/21

N2 - The methylation of p-tert-butylcalix[4]arene in the distal 1,3-phenolic sites provides the ligand H2L = {p-tert-butylcalix[4](OMe)2(OH)2arene} that enables construction of heteroleptic mononuclear lanthanide complexes. The reaction of (N(nBu)4)(acac) (Hacac = acetylacetone), MIIICl3 and H2L under Schlenk conditions results in the formation of a family of (N(nBu)4)[MIIIL(acac)2] complexes where M = Y (1), Gd (2), Tb (3) and Dy (4). The metal ions are eight-coordinate in distorted square-antiprismatic coordination geometries, resulting in slow relaxation of the magnetisation for the Tb derivative.

AB - The methylation of p-tert-butylcalix[4]arene in the distal 1,3-phenolic sites provides the ligand H2L = {p-tert-butylcalix[4](OMe)2(OH)2arene} that enables construction of heteroleptic mononuclear lanthanide complexes. The reaction of (N(nBu)4)(acac) (Hacac = acetylacetone), MIIICl3 and H2L under Schlenk conditions results in the formation of a family of (N(nBu)4)[MIIIL(acac)2] complexes where M = Y (1), Gd (2), Tb (3) and Dy (4). The metal ions are eight-coordinate in distorted square-antiprismatic coordination geometries, resulting in slow relaxation of the magnetisation for the Tb derivative.

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U2 - 10.1039/d1dt00359c

DO - 10.1039/d1dt00359c

M3 - Article

C2 - 34160497

SN - 1477-9226

VL - 50

SP - 9648

EP - 9654

JO - Dalton Transactions

JF - Dalton Transactions

IS - 27

ER -

Exploiting complementary ligands for the construction of square antiprismatic monometallic lanthanide SMMs

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