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Chiroptical properties of 2-benzoylbenzoic acid - chiral amine systems

✍ Scribed by Shunsuke Takenaka; Yuji Miyauchi; Niichiro Tokura

Book ID
104225746
Publisher
Elsevier Science
Year
1976
Tongue
French
Weight
206 KB
Volume
17
Category
Article
ISSN
0040-4039

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✦ Synopsis

Ion-pairs of 2-benzoylbenzoic acid-chiral amine display a large induced circular dichroism ( ICD ) on the n -h" transition of the carbonyl group under lower concentration of the salt than 10s2 mole/l in non-polar solvents such as 1 carbon tetrachloride and benzene.

The origin of the large ICD effect is assumed to be preferential formation of the optically active rotamer of 2-benzoylbenzoic acid, on a time average, due to asymmetric interaction between the chiral amine

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