To find out the correlation between SCO and fluorescence property, temperature-dependent fluorescence emission spectra were recorded for complexes 13 and 14 along with the ligands L8 and L9. The temperature-dependent fluorescence spectra of the ligand L8 show a monotonous decrease in the intensity upon increasing the temperature due to the enhancement of non-radiative transitions. For complex 13, temperature-dependent emission spectra show a decreasing nature for the intensity in the range of 260-300 K. Afterwards, the fluorescence intensity starts to increase slowly in the range of 300-380 K, close to the temperature range of the SCO process (Fig. ).