Chiral tetranuclear copper(<scp>ii</scp>) complexes: synthesis, optical and magnetic properties
Naushad Ahmed, Shalini Tripathi, Arup Sarkar, Kamal Uddin Ansari, Chinmoy Das, Neetu Prajesh, Satoshi Horike, Ramamoorthy Boomishankar, Maheswaran Shanmugam
Abstract
The chiral tetranuclear Cu(<sc>ii</sc>) cubane complexes with the general molecular formula [Cu<sub>4</sub>(R-L<sub>1</sub>)<sub>4</sub>] (<bold>R-1</bold>) and [Cu<sub>4</sub>(S-L<sub>1</sub>)<sub>4</sub>] (<bold>S-1</bold>) exhibit ferromagnetic exchange coupling, which is in contrast to the literature reports. This is corroborated by theoretical calculations.
Topics & Concepts
ChemistryCubaneCopperFerromagnetismCrystallographyCoupling (piping)StereochemistryCondensed matter physicsCrystal structureOrganic chemistryMetallurgyMaterials sciencePhysicsMagnetism in coordination complexesLanthanide and Transition Metal ComplexesMetal-Catalyzed Oxygenation Mechanisms