What does mesoionic compound mean?
Definitions for mesoionic compound
mesoionic com·pound
This dictionary definitions page includes all the possible meanings, example usage and translations of the word mesoionic compound.
Wiktionary
mesoionic compoundnoun
any of a class of compounds having five-membered ring heterocycles (or their benzo derivatives) which possess a sextet of u03C0-electrons in association with the atoms comprising the ring, but which cannot be represented by any one covalent or polar structure; typically the ring structure contains both positive and negative delocalised charges which cannot be associated with any one ring atom, and the negative charge can also be associated with a conjugated exocyclic atom (typically oxygen, sulfur, or nitrogen).
Wikipedia
mesoionic compound
In chemistry, mesoionic compounds are one in which a heterocyclic structure is dipolar and where both the negative and the positive charges are delocalized. A completely uncharged structure cannot be written and mesoionic compounds cannot be represented satisfactorily by any one mesomeric structure. Mesoionic compounds are a subclass of betaines. Examples are sydnones and sydnone imines (e.g. the stimulant mesocarb), münchnones, and mesoionic carbenes. The formal positive charge is associated with the ring atoms and the formal negative charge is associated either with ring atoms or an exocyclic nitrogen or other atom. These compounds are stable zwitterionic compounds and belong to nonbenzenoid aromatics.
Numerology
Chaldean Numerology
The numerical value of mesoionic compound in Chaldean Numerology is: 8
Pythagorean Numerology
The numerical value of mesoionic compound in Pythagorean Numerology is: 5
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"mesoionic compound." Definitions.net. STANDS4 LLC, 2024. Web. 13 May 2024. <https://www.definitions.net/definition/mesoionic+compound>.
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