A NEW APPROACH TO THE DETECTION AND DETERMINATION OF o-CHLOROBENZYLIDENE-MALONONITRILE (CS) AND ITS CHEMICAL RELATIVES

o-Chlorobenzylidenemalononitrile (CS-gaz) has been found to react with KCN in DMSO and to form practically quantitatively a stable 1:1 adduct of carbanionic structure. The conversion results in the appearance of two very strong ν s C≡N and ν as C≡N IR bands of the dicyanomethide fragment of the addu...

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Bibliographic Details
Published in:Spectroscopy letters 2002-06, Vol.35 (2), p.285-291
Main Authors: Binev, Ivan G., Binev, Yuri I., Juchnovski, Ivan N.
Format: Article
Language:English
Subjects:
Adduct
Carbanion
Detection
Determination
Infrared spectra
o-Chlorobenzylidenemalononitrile (CS)
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Summary:o-Chlorobenzylidenemalononitrile (CS-gaz) has been found to react with KCN in DMSO and to form practically quantitatively a stable 1:1 adduct of carbanionic structure. The conversion results in the appearance of two very strong ν s C≡N and ν as C≡N IR bands of the dicyanomethide fragment of the adduct at 2161 cm −1 and 2106 cm −1 , respectively. These bands can be used to detect selectively and to determine quantitatively CS and its chemical relatives, including in the presence of large quantities of other substances.
ISSN:0038-7010
1532-2289
DOI:10.1081/SL-120003813