Zobrazeno 1 - 10
of 65
pro vyhledávání: '"protic and aprotic solvents"'
Publikováno v:
Crystals, Vol 11, Iss 6, p 592 (2021)
Hybrid materials, i.e., the organically modified silicates (ORMOSIL) based on zincphthalocyanine (ZnPc) and silica glass matrix were synthesized by the sol-gel method using protic solvents (methanol, ethanol, isopropanol, butanol) and aprotic solvent
Externí odkaz:
https://doaj.org/article/5bf5790a11f540d6909089a782e09a18
Akademický článek
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Akademický článek
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Autor:
Drmanić Saša Ž., Nikolić Jasmina B., Marinković Aleksandar D., Šekularac Gavrilo M., Jovanović Bratislav Ž.
Publikováno v:
Chemical Industry and Chemical Engineering Quarterly, Vol 19, Iss 3, Pp 385-388 (2013)
The ultraviolet absorption spectra of the carboxyl group of three isomeric pyridine carboxylic acids N-oxides (picolinic acid N-oxide, nicotinic acid N-oxide and isonicotinic acid N-oxide) were determined in fourteen solvents in the wavelength range
Externí odkaz:
https://doaj.org/article/0d0c199bd31f41d0b0fcec40f55f30d8
Publikováno v:
Journal of the Serbian Chemical Society, Vol 77, Iss 10, Pp 1311-1338 (2012)
Protic and aprotic solvent effects on the reactivity of picolinic, nicotinic and isonicotinic acid, as well as of some substituted nicotinic acids with diazodiphenylmethane (DDM) were investigated. In order to explain the kinetic results through solv
Externí odkaz:
https://doaj.org/article/8eb9e293a66f4b08bba8cd4cec66c5ef
Publikováno v:
Journal of the Serbian Chemical Society, Vol 71, Iss 2, Pp 89-101 (2006)
The rate constants for the reaction of three isomeric pyridine mono-carbocylic acid N-oxides with diazodiphenylmethane were determined at 30 ºC in thirty two protic and aprotic solvents by the well known UV spectrophotometric method. The rate consta
Externí odkaz:
https://doaj.org/article/f047dd4fd3c04b34b3066b27a289eba7
Publikováno v:
Journal of the Serbian Chemical Society, Vol 71, Iss 2, Pp 89-101 (2006)
The rate constants for the reaction of three isomeric pyridine mono-carbocylic acid N-oxides with diazodiphenylmethane were determined at 30 ºC in thirty two protic and aprotic solvents by the well known UV spectrophotometric method. The rate consta
Externí odkaz:
https://doaj.org/article/43d156810cbc40e1b28b7ba342ec078c
Publikováno v:
Journal of the Serbian Chemical Society, Vol 70, Iss 4, Pp 557-567 (2005)
Rate constants for the reaction of diazodiphenylmethane with isomeric pyridine carboxylic acids were determined in chosen protic and aprotic solvents at 30 °C, using the well known UV spectrophotometric method. The values of the rate constants of th
Externí odkaz:
https://doaj.org/article/42b8877e132347d39d5b443c1f02f35b
Publikováno v:
Journal of the Serbian Chemical Society, Vol 70, Iss 4, Pp 557-567 (2005)
Rate constants for the reaction of diazodiphenylmethane with isomeric pyridine carboxylic acids were determined in chosen protic and aprotic solvents at 30 °C, using the well known UV spectrophotometric method. The values of the rate constants of th
Externí odkaz:
https://doaj.org/article/6ff0020f11034b8bba5410d76c3d91d5
Publikováno v:
Acta Periodica Technologica, Vol 2002, Iss 33, Pp 93-99 (2002)
The effect of protic and aprotic solvents on electronic apsorption spectra of 1-(3-X-benzil)-2-aminobenzimidazoles (X=CH3;OCH3; Cl) was examined. UV-apsorption spectra (200-400 nm) were recorded in five protic and four aprotic solvents. Batochromic s
Externí odkaz:
https://doaj.org/article/bb8258294a9446eaafa56a93e0a79224