New Magnetic and Luminescent Dy(III) and Dy(III)/Y(III) Based Tetranuclear Silsesquioxane Cages
Alena N. Kulakova, Karina Nigoghossian, Gautier Félix≠, Victor N. Khrustalev, Elena S. Shubina, Jérôme Long, Yannick Guari≠, Luís D. Carlos, Аlexey N. Bilyachenko, Joulia Larionova≠
Abstract
Abstract We report here the synthesis, structure, luminescence, and magnetic properties of three new cage‐like tetranuclear silsesquioxanes (Et 4 N) 2 [(PhSiO 1..5 ) 8 (Y 0.75 Dy 0.25 O 1.5 ) 4 (O)(NO 2.5 ) 6 (EtOH) 2 (MeCN) 2 ] and (Cat) 2 [(PhSiO 1.5 ) 8 (DyO 1.5 ) 4 (O)(NO 2.5 ) 6 (EtOH) 2 (MeCN) 2 ] (Cat=Et 4 N or Ph 4 P). They present a characteristic green‐yellow emission. The Y 3+ /Dy 3+ compound displays in addition a field‐induced Single Molecule Magnet (SMM) behavior making it the first reported bifunctional magneto‐luminescent silsesquioxane.
Topics & Concepts
SilsesquioxaneBifunctionalChemistryLuminescenceDysprosiumCrystallographyMoleculeLanthanideInorganic chemistryIonPolymerOptoelectronicsOrganic chemistryMaterials scienceCatalysisMagnetism in coordination complexesLanthanide and Transition Metal ComplexesSilicone and Siloxane Chemistry