13878
The X - band electron paramagnetic resonance ( EPR ) spectrum reveals the presence of two stereoisomers , the one characterized crystallographically and a contribution of about 10 % from a second symmetrical ( sym ) isomer wherein both dppv ligands occupy apical - basal sites .
 Chemical: dppv
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: dppv