Sulfidogermanates or thiogermanates are chemical compounds containing anions with sulfur atoms bound to germanium.
Related compounds include thiosilicates, thiostannates, selenidogermanates, telluridogermanates and selenidostannates.
Light elements from these groups have lower affinity for sulfur, so there are fewer compounds like this for boron, aluminium, carbon, and silicon.
[1] Where sulfur is deficient, an anion is not formed, and instead cation-like covalent compounds can exist with halogens, such as Ge4S6Br4,[2] or Ge4S6I4.
[3] The solvochemical method of production involves dissolving germanium oxide, sulfur and other salts in a heated solvent under pressure.