These are as primarily chlorofluorocarbons, such as {TAIL ~ R12} and {HEAD ~ R22}, i.e., dichlorodifluoromethane and chlorodifluoromethane, respectively 
These are as primarily chlorofluorocarbons , such as { TAIL ~ R12 } and { HEAD ~ R22 } , i.e. , dichlorodifluoromethane and chlorodifluoromethane , respectively
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH