18005
Both molecular structures are stabilized by intermolecular Cl . . . H and O . . . H hydrogen bonds with marginal contributions from Cl - related halogen bonds , as revealed by density functional theory calculations .
 Chemical: Cl; Chemical: H; Chemical: O; Chemical: H; Chemical: hydrogen; Chemical: Cl; Chemical: halogen
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: Cl; Chemical: H; Chemical: O; Chemical: H; Chemical: hydrogen; Chemical: Cl; Chemical: halogen