The compound 3, wheren {TAIL ~ each R1 moiety} is {HEAD ~ a 1,4 phenylene moiety} 
The compound 3 , wheren { TAIL ~ each R1 moiety } is { HEAD ~ a 1,4 phenylene moiety }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD