Which of the following is not isostructural with ${\text{SiCl}}_4$?

${\text{SiCl}}_4$, ${\text{SO}}_4^{2-}$, ${\text{PO}}_4^{3-}$, and ${\text{NH}}_4^{+}$ all have the central atom hybridized $s{p}^3$ with zero lone pairs, leading to a perfect tetrahedral geometry. However, ${\text{SCl}}_4$ has a central sulfur atom ($s{p}^{3}d$ hybridized) with 4 bond pairs and 1 lone pair, resulting in an irregular 'see-saw' geometry.