Nomenclature of organic compounds

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The nomenclature of organic compounds primarily follows classical valence bonding rules, which do not account for electronic configurations. This means that names assigned to compounds may not reflect their electronic properties or electronegativity. For instance, CH2Cl2 is correctly named dichloromethane instead of alternatives that suggest different bonding characteristics. The replacement operation in nomenclature allows for naming compounds where skeletal atoms or functional groups are substituted. Understanding these conventions is crucial for accurate communication in organic chemistry.
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Help me understand the following excerpt :-
It is very important to recognize that, in general, the rules of the nomenclature of organic compounds are written in terms of classical valence bonding and do not imply electronic configurations of any kind.

[Mentor Note -- Representative link added below]
https://www.acdlabs.com/iupac/nomenclature/93/r93_125.htm
The replacement operation can be used for naming organic compounds in which skeletal atoms of a parent structure are replaced by other skeletal atoms, or in which oxygen atom and/or hydroxy groups of characteristic groups are replaced by other atoms or groups.

It is very important to recognize that, in general, the rules of organic nomenclature are written in terms of classical valence bonding and do not imply electronic configurations of any kind.

Examples of naming structures in several ways are shown in Table 1.
 
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It means that the name won’t reflect electronic tendencies like electronegativity.

CH2Cl2 would be dichloromethane rather than methane dichloride or methylene chloride or methylene dichloride (implying the chlorine exists as Cl-).
 
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