TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The compound is a silver-indium-gallium-sulfur/selenium (AIGS), silver-indium-sulfur/selenium (AIS) or silver-gallium-sulfur/selenium (AGS) precursor compound. The compound is deficient or enriched in the quantity of a Group 11 atom. The compound is linear, branched, cyclic, an alternating copolymer, a block copolymer and/or a random copolymer. The compound is an oil at a temperature below 100 degrees C. The compound further comprises three more repeating units of formula (M1b(ER)(ER)), or three or more repeating units of formula (M1a(ER)(ER)). (I) has 97 metal alloy repeating units e.g. of formulae (Ag(Se-sec-butyl)4In), (Ag(0.6)(Se-sec-butyl(Bu))(3.6)In), (Ag(0.9)(Se-sec-Bu)(3.9)In), (Ag(1.5)(Se-sec-Bu)(4.5)In), (Ag(Se-sec-Bu)3(Se-tert-Bu)In), (Ag(Se-sec-Bu)4Ga), (Ag(0.8)(Se-sec-Bu)(3.8)In(0.2)Ga(0.8)), (Ag(Se-sec-Bu)4In(0.3)Ga(0.7)), (Ag(Se-sec-Bu)4In(0.7)Ga(0.3)), (Ag(Se-sec-Bu)4In(0.5)Ga(0.5)), (Ag(Se-sec-Bu)3(Se-tert-Bu)Ga(0.3)In(0.7)), (Ag(S-ter-Bu)(S-iso-propyl(Pr))In(S-iso-Pr)2), (Ag(S-tert-Bu)2In(S-tert-Bu)2), (Ag(S-tert-Bu)(S-n-Bu)In(S-n-Bu)2), (Ag(Se-tert-Bu)(Se-n-Bu)In(Se-n-Bu)2), (Ag(S-tert-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(Se-tert-Bu)(S-tert-Bu)Ga(S-tert-Bu)2), (Ag(Se-tert-Bu)2Ga(Se-tert-Bu)2), (Ag(S-tert-Bu)2Ga(S-tert-Bu)2), (Ag(Se-tert-Bu)2In(Se-tert-Bu)2), (Ag(Se-tert-Bu)(Se-iso-Pr)In(Se-iso-Pr)2), (Ag(Se-tert-Bu)(S-sec-Bu)In(S-sec-Bu)2), (Ag(Se-tert-Bu)(Se-iso-Pr)Ga(Se-iso-Pr)2), (Ag(S-ter-Bu)(S-iso-Pr)Ga(S-iso-Pr)2), (Ag-(Se-tert-Bu)(Se-n-Bu)In(Se-n-Bu)2), (Ag(S-tert-Bu)(S-iso-Pr)In(S-iso-Pr)2), (Ag(S-n-Bu)(S-tert-Bu)In(S-tert-Bu)2), (Ag(Se-n-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(S-tert-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(Se-sec-Bu)(Se-tert-Bu)In(Se-tert-Bu)2), (Ag(Se-tert-Bu)(Se-iso-Pr)In(Se-iso-Pr)2), (Ag(Se-tert-Bu)(S-sec-Bu)In(S-sec-Bu)2), (Ag(Se-tert-Bu)(Se-iso-pro)Ga(Se-iso-Pr)2), (Ag(S-tert-Bu)(S-iso-Pr)Ga(S-iso-Pr)2), (Se-n-Bu)(0.7 In, 0.3 Ga)(Se-n-Bu)2), ((0.9 Ag)(0.9 S-tert-Bu)(S-tert-Bu)(0.85 In,0.15 Ga)(S-tert-Bu)2), ((0.75 Ag)(0.75 S-tert-Bu)(S-n-Bu)(0.80 In,0.20 Ga)(S-n-Bu)2), ((0.8 Ag)(0.8 Se-tert-Bu)(Se-n-Bu)(0.75, In, 0.25 Ga)(Se-n-Bu)2) and ((0.98 Ag)(0.98 Se-tert-Bu)(S-tert-Bu)2(0.600, In,0.400 Ga). EXAMPLE - Indium (In)(selenium(Se)-sec-butyl(Bu))3 (0.64 g), silver(Ag)Se-sec-Bu (0.15 g) and copper(Cu)Se-sec-Bu (0.12 g) were charged in an inert atmosphere glovebox, a Schlenk tube. Benzene (15 ml) was added, and the reaction mixture was stirred at 25 degrees C for 30 minutes. An orange solution was obtained. This solution was filtered through a filter cannula and the mother liquor was collected. The solvent was then removed under dynamic vacuum to give (copper(Cu)(0.5)silver(Ag)(0.5)(Se-sec-Bu)4indium(In)).