Halogens 2 Models, Molecular 2 Molecular Conformation 2 Quinazolines 2 Thiones 2 atropisomers 2 axial chirality 2 chemistry 2 conformation 2 halogen 2 halogen bonds 2 molecular model 2 quinazoline derivative 2 quinazolinones 2 thioketone 2 thiones 2 1,2,3,5-tetra fluoro-4 1 6-di iodo benzene solvate 1 Co-crystal 1 Crystal structure 1 Halogen bonding 1