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EntityQ1189242· pop 18· linked from 174 articles

Also known as Li2, dilithium molecule

Dilithium, Li2, is a strongly nucleophilic, diatomic molecule comprising two lithium atoms covalently bonded together. Li2 has been observed in the gas phase. It has a bond order of 1, an internuclear separation of 267.3 pm and a bond energy of 102 kJ/mol or 1.06 eV in each bond. The electron configuration of Li2 may be written as σ2.

Wikidata facts

Has part
lithium
Mass
14.032009
Show 3 more facts
canonical SMILES
[Li][Li]
chemical formula
Li₂
different from
dilithium
Sources (5)

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Encyclopedic overview

3 sections
Contents
  • See also
  • References
  • Further reading

Dilithium, Li2, is a strongly nucleophilic, diatomic molecule comprising two lithium atoms covalently bonded together. Li2 has been observed in the gas phase. It has a bond order of 1, an internuclear separation of 267.3 pm and a bond energy of 102 kJ/mol or 1.06 eV in each bond. The electron configuration of Li2 may be written as σ2.

Being the third-lightest stable neutral homonuclear diatomic molecule (after dihydrogen and dihelium), dilithium is an extremely important model system for studying fundamentals of physics, chemistry, and electronic structure theory.

Excerpted from Wikipedia’s “dilithium” article, available under the CC BY-SA 4.0 licence.