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SUBSTITUENT [2 records]
Record 1 - internal organization data 1999-02-10
Record 1, English
Record 1, Subject field(s)
- Chemistry
Record 1, Main entry term, English
- substituent
1, record 1, English, substituent
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- substituent group 2, record 1, English, substituent%20group
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
An atom or radical that replaces another in a molecule as the result of a reaction. 3, record 1, English, - substituent
Record 1, French
Record 1, Domaine(s)
- Chimie
Record 1, Main entry term, French
- substituant
1, record 1, French, substituant
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
On donne le nom de substitution au remplacement d'un atome ou groupe d'atomes d'une molécule par un autre atome ou groupe d'atomes, dits substituants. 2, record 1, French, - substituant
Record number: 1, Textual support number: 2 CONT
On admet que dans toute substitution nucléophile interviennent deux participations : celle d'une particule nucléophile [...] qui attaque le carbone, et celle d'une particule électrophile [...] qui attaque le substituant X. 3, record 1, French, - substituant
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1982-08-10
Record 2, English
Record 2, Subject field(s)
- Chemistry
Record 2, Main entry term, English
- substituent
1, record 2, English, substituent
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
An atom or radical which replaces another in a molecule as the result of a reaction. 1, record 2, English, - substituent
Record number: 2, Textual support number: 1 CONT
The effect of substituents on the acid-base properties of organic molecules has been very extensively studied and is one of the main methods of investigating the nature of electron displacements produced by substitution in these molecules. 2, record 2, English, - substituent
Record 2, French
Record 2, Domaine(s)
- Chimie
Record 2, Main entry term, French
- substituant
1, record 2, French, substituant
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
En série aromatique, on explique ainsi le caractère plus acide du phénol par rapport aux alcools (...), en invoquant la résonance de l'ion phénate (...) Si, de plus, le noyau renferme des substituants, leur effet inducteur peut se superposer au précédent. 1, record 2, French, - substituant
Record number: 2, Textual support number: 1 OBS
substituer : remplacer un atome, une molécule, etc., dans un composé, par un autre atome, une autre molécule, sans changer l'allure générale du composé. 2, record 2, French, - substituant
Record 2, Spanish
Record 2, Textual support, Spanish
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