Advantageously, {HEAD ~ the tetracopper} tetroxide contains two copper ions, two copper ions, and four oxygen atoms in {TAIL ~ a crystal lattice} 
Advantageously , { HEAD ~ the tetracopper } tetroxide contains two copper ions , two copper ions , and four oxygen atoms in { TAIL ~ a crystal lattice }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL