Chiral wheel anions of copper(<scp>ii</scp>)-early lanthanides(<scp>iii</scp>) with high optical-limiting properties

Xu, Xiongli; He, Yuan; Meng, Wei; Lu, Yao; Liu, Liangliang; Zhao, Chujun; Xu, Feng

doi:10.1039/d2dt00117a

Dalton Trans.

2022

DOI: 10.1039/d2dt00117a

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Chiral wheel anions of copper(ii)-early lanthanides(iii) with high optical-limiting properties

Xiongli Xu

Yuan He

Wei Meng

et al.

Abstract: A new family of chiral wheel anions {CuII22LnIII4} (La, Ce, Pr, Nd and Sm) was obtained from aqueous solution by the use of tartrate anions. It provides a new perspective...

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2024

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Cited by 3 publications

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Chiral Heterometallic Cu₈Ln₄ Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

Dermitzaki,

Panagiotopoulou,

Pissas

et al. 2024

ChemPlusChem

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The enantiomerically pure Schiff base ligands H2L‐S and H2L‐R yield chiral heterometallic dodecanuclear complexes of the form [Cu8Ln4(OH)8(OMe)4(O2CBut)8(L‐S or L‐R)4(H2O)4] where LnIII = Gd (1S), Tb (2S), Dy (3S, 3R), Ho (4S, 4R), Er (5S) or Y (6S, 6R) and H2L = (S or R)‐2‐{[(1‐hydroxypropan‐2‐yl)imino]methyl}‐6‐methoxyphenol. The complexes are isomorphous and crystallize in the non‐centrosymmetric polar space group C2 in enantiomeric conformation. The chirality of the Schiff base ligands originates from the respective S‐ or R‐ enantiomer of 2‐aminopropan‐1‐ol, is imparted to the complexes and to the crystals that belong to non‐centrosymmetric space group. The chirality and enantiomeric conformation of all complexes are retained in dmso solutions as confirmed by Circular Dichroism spectra which consist of mirror images, expected for enantiomeric pairs. All complexes consist of four distorted cubane‐like subunits [Cu2Ln2(m3‐OH)2(m3‐OMe)(m3‐OR)], which share the LnIII ions and result in a cyclic distorted tetragonal arrangement; each edge of the {LnIII4} quadrilateral is occupied by two m‐OH‐ ions that further bridge to a CuII ion. Magnetic susceptibility measurements revealed ferromagnetic interactions for 3S with LnIII = Dy and antiferromagnetic interactions for all other complexes. AC susceptibility data of 3S under 1 kOe external dc field indicate slow magnetic relaxation phenomena below 2 K.

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Chiral Heterometallic Cu₈Ln₄ Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

Dermitzaki,

Panagiotopoulou,

Pissas

et al. 2024

ChemPlusChem

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Three [Ln2Co2] cluster-based three-dimensional frameworks: Syntheses, structure, and magnetocaloric effect

Li,

Yu,

Wang

et al. 2024

Journal of Molecular Structure

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A new family of heterometallic [Cu₆M₄] (M = Gd, Tb, Dy and Y) clusters derived from the combined use of selected pyridyl poly-alcohol ligands

Anastassiades,

Alexandropoulos,

Buch

et al. 2024

Dalton Trans.

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Chiral wheel anions of copper(ii)-early lanthanides(iii) with high optical-limiting properties

Abstract: A new family of chiral wheel anions {CuII22LnIII4} (La, Ce, Pr, Nd and Sm) was obtained from aqueous solution by the use of tartrate anions. It provides a new perspective...

Cited by 3 publications

References 54 publications

Chiral Heterometallic Cu₈Ln₄ Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

Chiral Heterometallic Cu₈Ln₄ Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

Three [Ln2Co2] cluster-based three-dimensional frameworks: Syntheses, structure, and magnetocaloric effect

A new family of heterometallic [Cu₆M₄] (M = Gd, Tb, Dy and Y) clusters derived from the combined use of selected pyridyl poly-alcohol ligands

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Chiral wheel anions of copper(ii)-early lanthanides(iii) with high optical-limiting properties

Abstract: A new family of chiral wheel anions {CuII22LnIII4} (La, Ce, Pr, Nd and Sm) was obtained from aqueous solution by the use of tartrate anions. It provides a new perspective...

Cited by 3 publications

References 54 publications

Chiral Heterometallic Cu8Ln4 Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

Chiral Heterometallic Cu8Ln4 Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

Three [Ln2Co2] cluster-based three-dimensional frameworks: Syntheses, structure, and magnetocaloric effect

A new family of heterometallic [Cu6M4] (M = Gd, Tb, Dy and Y) clusters derived from the combined use of selected pyridyl poly-alcohol ligands

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Chiral Heterometallic Cu₈Ln₄ Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

Chiral Heterometallic Cu₈Ln₄ Complexes with Enantiopure Schiff Base Ligands: Synthesis, Structural, Spectroscopic and Magnetic Studies

A new family of heterometallic [Cu₆M₄] (M = Gd, Tb, Dy and Y) clusters derived from the combined use of selected pyridyl poly-alcohol ligands