“…For the research discussed here we used invarioms for leastsquares structure refinement of several molecules of the fluoroquinolone type. They include ciprofloxacin (cipro), [9][10][11][12] enoxacin (eno), 13,14 lomefloxacin (lome), 15,16 ofloxacin (oflox), [17][18][19][20] norfloxacin (nor), [21][22][23][24][25][26][27] sparfloxacin (spar), 28,29 fleroxacin (flero), 30 moxifloxacin (moxi) 31 and nadifloxacin (nadi). 32 A common atomic naming scheme was chosen for our structural studies.…”