Spectroscopic, thermal and crystal structure properties of novel ()-2,6-dimethyl-4-(4--butylphenyldiazenyl)phenyl acrylate dye

Studies on Synthesis and Spectral Characterization of Some Transition Metal Complexes of Azo-Azomethine Derivative of Diaminomaleonitrile

“…Azo compounds are very important molecules and have attracted much attention in both academic and applied research [15][16][17][18][19][20]. Our interest in this molecule stems from its ability to act as a diamine and also from the fact that the electron-withdrawing CN groups affect the coordinating capacity of DAMN itself and have the potential to modulate the electronic properties of resulting coordination complexes and also their chemical reactivity.…”

Synthesis and characterization of novel furoate azodye using spectral and thermal methods of analysis

“…The presence of such intense absorption K-bands at 330 nm, as a result of the conjugated system Ar-N=N-Ar, and low intensity R-bands at 435 nm, due to the -N=N-chromophore [22] can be noted.…”

“…4b). The signals of ring B protons form two singlets, one at 2.30 ppm, corresponding to the six protons of the two-CH 3 groups [22], and the second one being assigned to the two aromatic protons H 6 and H 6 0 , at 7.69 ppm [23]. Regarding ring C, the signal of H 12 is displayed at 6.64 ppm and it is a double doublet, because H 12 couples with both H 11 and H 13 , while H 11 and H 13 signals have doublets at 7.46 and 7.72 ppm, respectively [26].…”

“…p* transitions, which correspond to an electron transition from a pair of non-participant electrons of a heteroatom (N from azo group) on a non-bonding p* orbital, while that of K-band is due to electronic transitions between bonding and nonbonding orbitals, p ? p* [22][23][24].…”

HJSE19030000101Synthesis, Structural Characterization AndTheoretical Investigations of New Azo-Azomethine Compounds Bearing Acryloyl MoietySevil

“…

A zo dyes which are characterized by the presence of the azo chromophore [-N=N-] have attracted much attention not only for their easy preparation and lower cost but also for their wide application in industry as textile dyeing [1][2][3], coloring of plastic and polimers [1,4], colorimetric indicators [5][6], high-technology applications [3,7], cosmetics [8] and photostorage units [4,9]. In addition azo dyes and its derivatives exhibit photoactive properties with potential application as lasers [9] With the advancement in technology, one of the most important scientific problems is how to correlate between chemical and physical properties of the compound [2,15].

…”