TY - RPRT TI - An unexpectedly simple NIR dye for 1.1 microm with a central mesoionic structure. AU - Heinz Langhals PY - 2003 DO - 10.1002/anie.200301642 UR - https://pubmed.ncbi.nlm.nih.gov/14502698/ ID - 14502698 ER -