Boron, heterocycles, luminescence, photooxidation, structure-property relationship The structures in the left and right corners of the doors are those of bis(benzothienylo)[1,4]thiaborins - basic building blocks of BODIPY. Keywords: boron; heterocycles; luminescence; photooxidation; structure-property relationship EN boron heterocycles luminescence photooxidation structure-property relationship 1 1 1 07/03/23 20230627 NES 230627 B Singlet oxygen is generated b by the BODIPY photosensitizer, whose X-ray structure is shown in the central part of the picture.