مقاله Structure and properties of 2-[(E)-2-(4-dipropylaminophenyl)-1-ethenyl]-1,3,3-trimethyl-3H-indolium chloride : تی پی بین

خلاصه مقاله

Structure and properties of 2-[(E)-2-(4-dipropylaminophenyl)-1-ethenyl]-1,3,3-trimethyl-3H-indolium chloride

The structure of styryl dye, 2-[(E)-2-(4-dipropylaminophenyl)-1-ethenyl]-1,3,3-trimethyl-3H-indolium chloride (I), was investigated using methods such as UV-VIS, fluorescence spectroscopy, and NMR (1H, 13C, APT, HMQC, COSY) and also by examining its electrochemical properties. A study of the acid-base properties revealed the existence of three different forms of the dye. The mechanisms of protolysis and hydrolysis are discussed. The reagent exists in a reactive single-charged form I + over a wide range of acidity (pH 4–11). The optimum analytical wavelength of the singlecharged form is 550 nm, where the molar absorptivity is 5.51 × 104 L mol−1 cm−1. The values of the optimum analytical wavelength and molar absorptivity of the protolysed and hydrolysed forms are: λ max(I-H2+) = 380 nm, ɛ(I-H2+) = 2.01 × 104 L mol−1 cm−1; λ max(I-OH) = 320 nm, ɛ(I-OH) = 1.12 × 104 L mol−1 cm−1. A theoretical study of the spectral and chemical properties of I was carried out by performing quantum chemical calculations.

نویسندگان

Martina Lešková [ P. J. Šafárik University, Moyzesova 11, 04154, Košice, Slovakia ]

Yaroslav R. Bazel [ P. J. Šafárik University, Moyzesova 11, 04154, Košice, Slovakia ]

Marcel Torok [ P. J. Šafárik University, Moyzesova 11, 04154, Košice, Slovakia ]

Yaroslav Studenyak [ Uzhorod National University, Pidhirna 46, 88000, Uzhorod, Ukraine ]

کلمات کلیدی

dipropylaminophenyl ethenyl structure properties

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Chemical Papers 2013

Chemical Papers is devoted to research in pure and applied chemistry and chemical engineering. At its founding in 1947, the journal presented the achievements of Slovak chemical science. Today, it is a peer-reviewed international journal published in English by the Institute of Chemistry of the Slovak Academy of Sciences, with the support of several other academic institutions. Its interdisciplinary coverage brings chemistry research together with related disciplines, including analytical chemistry; (bio)catalysis; biochemistry; chemical (bio)technology; (bio)chemical engineering; chemical physics; drug chemistry; food chemistry; environmental chemistry; inorganic chemistry; macromolecular chemistry; materials chemistry; mathematical chemistry; medical and pharmaceutical chemistry; nanochemistry; organic chemistry; physical chemistry and more.

حوزه های تحت پوشش : Chemistry/Food Science, general, Industrial Chemistry/Chemical Engineering, Biochemistry, generalBiotechnology