Solid Complexes of the Pi-Amphoteric Molecule <i>p</i>-Tricyanovinyl-N, N-Dimethylaniline

Sandman, Daniel J.; Richter, A. F.; Warner, Daniel; Fekete, George T.

doi:10.1080/00268948008072422

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…It was known [3] that 2 formed solid pi-complexes in which it behaves as a donor with some molecules and as an acceptor with another. Solid state spectra [4] of 2 were modi®ed when the ®lms evaporated onto quartz substrates were exposed to benzene vapor or heating. Comparison of ionization energies, electron anities, and redox potentials indicated that TCVDMA is more easily oxidized and less readily reduced than 2,4,7-trinitro¯uorenone(TNF) and it is less easily oxidized and more easily reduced than N,N-dimethylaniline(DMA).…”

Section: Introductionmentioning

confidence: 99%

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Concentration and Solvent Sensitive Visible Spectra of Poly(tricyanovinyldimethylaniline): Aggregation and Solvatochromism

Kim¹,

Sandman²

2002

J. of Macromolecular Sc., Part A

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This work presents unusual spectral behavior of poly(tricyanovinyldimethylaniline) (1) in dilute solutions. A new conjugated polymer(1) was prepared from p-(tricyanovinyl)N,N-dimethylaniline via the use of a methylglucopyranoside reagent. It is observed that dilute solutions of 1 exhibit spectral features associated with aggregation. The associative interaction is studied by changing the salt concentration of LiBr in DMF solution, by changing the concentration of 1, and by varying the solvents. The association modi®es the visible spectrum of 1 in dilute solution. Spectra of 1 in DMF solution exhibit an intense absorption maximum at 429 nm, which can be assigned to the side group, with tailing past 700 nm. With increasing concentration, a new absorption band arises between 480 nm and 700 nm. LiBr dissociates the aggregate to decrease the additional spectral features. The visible spectrum of 1 varies in dierent solvents. The spectrum of 1 in chloroform solution exhibits two maxima at 490 nm and 550 nm. The associative interaction presumably arises from a dipoleÀdipole interaction among pendant side groups. In DMF solution of 1 in the presence of p-chloranil, the spectrum shows a Downloaded by [University of California, San Francisco] at 22:23 26 December 2014 maximum at 429 nm with a distinct shoulder near 520 nm which does not orginate from 1 and p-chloranil(CA) itself.

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Section: Introductionmentioning

confidence: 99%

“…An attempt was made to investigate the possibility of electron donoracceptor interaction between 1 and electron acceptors (Note that 2 complexes with p-chloranil [4] ). An attempt was made to investigate the possibility of electron donoracceptor interaction between 1 and electron acceptors (Note that 2 complexes with p-chloranil [4] ).…”

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confidence: 99%