I want to know the answer to the following question:
What is necessary to stabilize the low oxidation state of zinc(l) compounds?
All the background I'm provided with is that "Most zinc(I) compounds contain formally the [Zn2]2+ core, which is analogous to the [Hg2]2+ dimeric cation present in mercury(I) compounds.". Is that enough to answer the question?
Answer: no