Supporting Information for Aggregation-Induced Visible Light Absorption Makes Reactant 1,2-Diisocyanoarenes Acting as Photosensitizer in Double Radical Isocyanide Insertions

1. Screening of reaction conditions ................................................................S3 2. The maximum absorption wavelengths and relative energies of isomers..............S4 3. Details of CASSCF/CASPT2 Calculations ...........................................................S5 4. Comparison between experiment and DFT calculation: IR spectra ....................S10 5. Binding energies of π-π stacking configuration in crystal...................................S11