The title complex. [Sn4(C4H9)8(C7H3ClNO4)4O2]. is a cluster formed by a crystallographic inversion center around the central Sn2O2 ring. Both of the two independent Sn atoms are five-coordinated. https://www.roneverhart.com/2012-2017-CHEVROLET-EQUINOX-Steering-Wheel-w-Switch-Control-Cover-22794381-Q/