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(2E,5E)-2-(p-cyanobenzylidene)-5-(p-dimethylaminobenzylidene)cyclopentanone is an asymmetrically substituted 2,5-diarylidene-cyclopentanone dye featuring electron-donating (dimethylamino) and electron-withdrawing (cyano) substituents, which contribute to its distinct photophysical properties. Spectroscopic studies reveal solvent-dependent behavior, likely due to intramolecular charge transfer facilitated by its push-pull structure. (2E,5E)-2-(p-cyanobenzylidene)-5-(p-dimethylaminobenzylidene)cyclopentanone's crystalline structure has been confirmed via X-ray diffraction, showing alignment with calculated gas-phase geometries, further supporting its stability and electronic characteristics. This dye is notable for its potential applications in materials science due to its strong light absorption and charge-transfer properties.

1246639-38-2

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1246639-38-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1246639-38-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,6,6,3 and 9 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1246639-38:
(9*1)+(8*2)+(7*4)+(6*6)+(5*6)+(4*3)+(3*9)+(2*3)+(1*8)=172
172 % 10 = 2
So 1246639-38-2 is a valid CAS Registry Number.

1246639-38-2Downstream Products

1246639-38-2Relevant academic research and scientific papers

Photophysical properties of an asymmetrical 2,5-diarylidene-cyclopentanone dye possessing electron donor and acceptor substituents

Zoto, Christopher A.,Connors, Robert E.

, p. 121 - 126 (2010)

Spectroscopic and photophysical properties have been measured in a variety of solvents for (2E,5E)-2-(p-cyanobenzylidene)-5-(p-dimethylaminobenzylidene)- cyclopentanone (I), an asymmetrically substituted 2,5-diarylidene-cyclopentanone known to have potent

Structures of (2E,5E)-2-(4-cyanobenzylidene)-5-(4-dimethylaminobenzylidene)cyclopentanone and (2E,5E)-2-benzylidene-5-cinnamylidenecyclopentanone

Zoto, Christopher A.,MacDonald, John C.

, p. 458 - 466 (2017)

The X-ray crystal structures of (2E,5E)-2-(4-cyanobenzylidene)-5-(4-dimethylaminobenzylidene)cyclopentanone (I) and (2E,5E)-2-benzylidene-5-cinnamylidenecyclopentanone (II) are presented, compared to the gas phase structures calculated using density funct

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