Rotational isomerization: spontaneous structural transformation of a thermally activated delayed fluorescence binuclear copper(i) complex†
Abstract
A novel binuclear Cu(I) halide complex, Cu2I2(DPPCz)2, which emits efficient thermally activated delayed fluorescence (TADF), is reported. The crystal of this complex spontaneously undergoes ligand rotation and coordination-configuration transformation, converting to its isomer without any external stimulation.