What is the link between elemental and compound semiconductors?

Semiconductor materials are found in column IV and neighboring column of the Periodic Table.

Elemental semiconductors: C (diamond), Si, Ge, Sn (grey). They crystallize in a diamond structure so are bound by covalent bonds.

Compound semiconductors: Binary compounds: Ga1-xAlxAs, ZnSxSe1-x, Zn1-xMgxSySe1-y, where 0 ≤ 𝑥 ≤ 1, 0 ≤ 𝑦 ≤ 1, GaN, GaP, GaAs, GaSb, InP, InAs, InSb, ZnS, ZnSe, ZnTe, CdS, CdSe, CdTe; Depending on the electronegativity bond type is mixture of covalent and ionic types