The crystal structures of Ni<sub>6+xsub>Sn<sub>8sub>Zn and Ni<sub>3+xsub>Sn<sub>4sub>Zn were determined using single crystal XRD.
Topological relations to Ni–Sn and Ni–Sn–Zn compounds were established and discussed.
Common structural units were identified and their interconnection patterns described.