HClO4

H(+1)Cl(+7)O(-2)4

O//Cl<_(A75,N2)O>\O`\`|O/H

O_(A-15,N2)Cl<_(A100,N2)O>\O`\`|OH

$dots(LTlDl)O=Cl<||$dots(LdDRd)O><`||$dots(LtTRt)O>-$dots(TD)O-H