13875
Crystallographic analysis shows that [ H1 ] ( 0 ) retains the stereochemistry of its precursor , where one dppv ligand spans two basal sites and the other spans apical and basal positions .
 Chemical: H1; 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: H1; Chemical: dppv