Coordination Compounds of Alkali and Rare Earth Metals Based on Centrosymmetric Chlorine-Substituted Bis-Mercaptooxazole. Synthesis, Structure, and Luminescence-Reference-Cited by-同舟云学术

Coordination Compounds of Alkali and Rare Earth Metals Based on Centrosymmetric Chlorine-Substituted Bis-Mercaptooxazole. Synthesis, Structure, and Luminescence

Published:2024-11-05 Issue:7 Volume:50 Page:447-459
ISSN:0132-344X
Container-title:Koordinacionnaâ himiâ
language:
Short-container-title:Koordinacionnaâ himiâ

Author:

Rogozhin A. F.¹,Il´ichev V. A.¹,Silant´eva L. I.¹,Kovylina T. A.¹,Kozlova E. A.¹,Fukin G. K.¹,Bochkareva M. N.¹

Affiliation:

1. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences

Abstract

New coordination polymers were synthesized. A ditopic centrosymmetric organic ligand containing oxazole heterocycles, 4,8-dichlorobenzo[1,2d:4,5d´]bis(oxazole)-2,6(3H,7H)-dithione (H2L), was prepared and structurally characterized. It was shown that deprotonated H2L forms non-luminescent binuclear molecular complexes Li2L(THF)6 (I) and Na2L(DME)4 (II) with alkali metals, while complexes of H2L with lanthanides are ionic compounds [Ln(DMSO)8][L]1.5 (Ln = Nd (III), Yb (IV)) exhibiting moderate metalcentered emission in the near-infrared (IR) range, despite the absence of coordination of the ligand L to lanthanide ions. The molecular structures of H2L·2DMSO and I–III were established by X-ray diffraction (CCDC no. 2320461 (H2L·2DMSO), 2320462 (I), 2320463 (II), 2320464 (III)).

Publisher

The Russian Academy of Sciences

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