As used herein, {HEAD ~ an S— group} bound to a metal surface is defined as including both a presence and {TAIL ~ an absence} of the thiol hydrogen 
is defined as including
As used herein , { HEAD ~ an S — group } bound to a metal surface is defined as including both a presence and { TAIL ~ an absence } of the thiol hydrogen
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH