2 syllables: I, mine. Stress on I.
EYE-meen
/ˈaɪmiːn/
Imine is pronounced EYE-meen (/ˈaɪmiːn/). It has two syllables (I-mine), with the stress on "I". Imine is a nitrogen-containing intermediate in organic chemistry, typically formed by the condensation of an aldehyde or ketone with a primary amine, yielding a C=N–R group. It functions as a key electrophile in various additions and rearrangements. The term is used mostly in academic contexts and literature on reaction mechanisms.
nounImine is a nitrogen-containing intermediate in organic chemistry, typically formed by the condensation of an aldehyde or ketone with a primary amine, yielding a C=N–R group. It functions as a key electrophile in various additions and rearrangements. The term is used mostly in academic contexts and literature on reaction mechanisms.
- You may default to /ˈɪmɪn/ (short first vowel and no long second vowel). Correction: aim for /ˈɪ.miːn/ with a long /iː/ in the second syllable. - In quick speech you might drop the second vowel or make it a schwa; fix by practicing slow articulation then gradually reduce speed while maintaining /iː/ quality. - Mixing with similar terms like ‘amine’ (a-MEEN) or ‘iminium’ (i-MIN-ee-um) by misplacing stress; keep the primary stress on the first syllable and stress the long /iː/ in the second.
How to Pronounce Imine
"The imine was prepared by the condensation of benzaldehyde with aniline under acidic catalysis."
"Imine stability varies with substituents and solvent, often hydrolyzing to carbonyl compounds."
"In this mechanism, the imine acts as an electrophile for nucleophilic attack by organosilanes."
Pronounce it as IM-ine, with two syllables: stressed first syllable /ˈɪ.miːn/. The vowel in the second syllable is a long /iː/ (as in 'bean'), not a short /ɪ/. IPA: US/UK/AU /ˈɪmiːn/. Tip: keep the tongue high front for /ɪ/ in the first vowel, then raise and tense the jaw for the long /iː/ in the second, ending with an /n/. Audio reference: consider listening to a chemist pronouncing 'imine' in lectures or dictionaries such as Cambridge or Forvo for calibration.
Common mistakes: (1) Saying it as a single syllable like 'imine' with a short /ɪ/ and /n/ at the end; (2) Mispronouncing the second vowel as /ɪ/ instead of /iː/ (e.g., /ˈɪmɪn/). Correction: clearly articulate /ˈɪ.miːn/ with a long /iː/ in the second syllable and end with a precise /n/. (3) Dropping the /iː/ length in fast speech; practice with slow articulation then speed up.
Across accents, the overall structure remains two syllables: /ˈɪ.miːn/. US and UK share rhoticity patterns where the /r/ is not present in this word; the vowel quality in /ɪ/ can be slightly tenser in British English and more central in some US speaker subsets. Australian English tends to be closer to UK vowel quality but with a slightly brighter /iː/. Overall, the main difference is vowel length and quality, not syllable count.
The challenge lies in the long /iː/ vowel of the second syllable and keeping a clean final /n/ after a tense nucleus. Non-native speakers may blend the two vowels or misplace tongue tension, producing /ˈɪmɪn/ or /ˈiːmɪn/. Focus on starting with a strong /ɪ/ in the first syllable, then raise and stretch your tongue for the /iː/ in the second, and finish with a crisp /n/. IPA cues: /ˈɪ.miːn/.
A unique question is whether to slightly lengthen the /iː/ for clarity in speech, especially when presenting reaction schemes. You can practice with deliberate lengthening in the second syllable in formal settings or when emphasizing the functional group in sentences like ‘the imine intermediate.’ Use a clear, steady /iː/ and avoid a reduced vowel that can obscure the C=N bond in spoken descriptions.
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- US: keep /ɪ/ in the first syllable crisp and the second syllable with a clear /iː/. You’ll hear slightly tenser second vowels among tech workers; aim for /ˈɪ.miːn/. - UK: tends toward a slightly rounded /iː/ and a slightly quicker cadence; maintain two crisp syllables with a long /iː/. - AU: more pronounced /iː/ with brighter intonation; keep /ˈɪ.miːn/ with even pitch between syllables. IPA anchors: /ˈɪ.miːn/; note rhoticity is not a factor for this word; focus on vowel length and consonant clarity.
Imine comes from the chemical nomenclature for a compound containing a carbon-nitrogen double bond (C=N). The term surfaced in the 19th century from German chemists experimenting with nitrogen-containing analogues of carbonyl compounds. It is related to the word ‘imine’ used in systematic naming to indicate a functional group designated by a C=N bond with substituents. Over time, “imine” and its variants appeared in English scientific literature as a standard term for this functional class, with “imino-” as a prefixed descriptor in more complex molecules. Common usage in organic chemistry contexts often distinguishes imines from related species like enamines (C=C–N). First known printed use traces to mid-to-late 1800s literature on amination and condensation reactions, where researchers documented nitrogen-substituted carbon-nitrogen double-bonded species as reactive intermediates in synthesis. The specific shorthand “imine” became widely adopted as a standalone noun for the functional group, while “imine” derivatives also evolved with substituent-specific names (e.g., N-aryl imines). Today, imines are foundational in our understanding of nucleophilic addition to C=N and are quoted in reaction schemes, catalysis discussions, and retrosynthetic analyses.
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💡 These words have similar meanings to "Imine" and can often be used interchangeably.
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Words that rhyme with "Imine"
-ine sounds
Practice with these rhyming pairs to improve your pronunciation consistency:
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