Give the IUPAC nomenclature of the following coordination compounds:

$($i$).[$Co$($NH$3)6]3+$

$($ii$).[$PtCl$4($NH$3)2]-$

$($iii$).[$Cr$($en$)3]$Cl$3$

$($iv$).[$Ru$($NO$)($CO$)3($NH$3)2]+$

$($v$).[$Fe$($CN$)6]4-$