Zinc(I) compounds are rare, and require bulky ligands to stabilize the low oxidation state. Most zinc(I) compounds contain formally the [Zn2]2+ core, which is analogous to the [Hg2]2+ dimeric cation present in mercury(I) compounds. The diamagnetic nature of the ion confirms its dimeric structure. The first zinc(I) compound containing the Zn—Zn bond, (η5-C5Me5)2Zn2, is also the first dimetallocene. The [Zn2]2+ ion rapidly disproportionates into zinc metal and zinc(II), and has only been obtained as a yellow glass formed by cooling a solution of metallic zinc in molten ZnCl2.
Zinc(I ) compounds are rare , and require bulky ligands to stabilize the low oxidation state . Most zinc(I ) compounds contain formally the [ Zn2]2 + core , which is analogous to the [ Hg2]2 + dimeric cation present in mercury(I ) compounds . The diamagnetic nature of the ion confirms its dimeric structure . The first zinc(I ) compound containing the Zn — Zn bond , ( η5-C5Me5)2Zn2 , is also the first dimetallocene . The [ Zn2]2 + ion rapidly disproportionates into zinc metal and zinc(II ) , and has only been obtained as a yellow glass formed by cooling a solution of metallic zinc in molten ZnCl2 .
When a solution of metallic zinc is cooled in molten ZnCl2, what is formed?
When a solution of metallic zinc is cooled in molten ZnCl2 , what is formed ?
yellow glass
yellow glass