... 1. Klan , P. ; Wirz , J. Photochemistry of Organic Compounds: From Concepts to Practice; Wiley: Chichester, UK, 2009 ... Chemical Physics Letters (1970), 7 (1), 15-18CODEN: CHPLBC ; ISSN:0009-2614 ... and from π → π* in EPA glass (Et2O 5 + isopentane 5 + EtOH 2 parts by vol.). ...