{HEAD ~ The resulting odd electron metal peptide complex} then fragments to yield diagnostic fragment ions observed in {TAIL ~ the mass spectrometer} 
{ HEAD ~ The resulting odd electron metal peptide complex } then fragments to yield diagnostic fragment ions observed in { TAIL ~ the mass spectrometer }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL