Compound films including a Group IIB IVA VA compound or {HEAD ~ a Group IB VA VIA compound} may be substituted using {TAIL ~ appropriate substitutions} in the method 
Compound films including a Group IIB IVA VA compound or { HEAD ~ a Group IB VA VIA compound } may be substituted using { TAIL ~ appropriate substitutions } in the method
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH