Colorimetric detection of trace water in tetrahydrofuran using N,N '-substituted oxoporphyrinogens
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Rok publikování | 2012 |
Druh | Článek v odborném periodiku |
Časopis / Zdroj | Chemical Communications |
Fakulta / Pracoviště MU | |
Citace | |
www | http://pubs.rsc.org/en/content/articlelanding/2012/cc/c2cc31118f |
Doi | http://dx.doi.org/10.1039/c2cc31118f |
Obor | Biochemie |
Klíčová slova | MAIN-GROUP THERMOCHEMISTRY; ORGANIC-SOLVENTS; NONCOVALENT INTERACTIONS; DYES; SOLVATOCHROMISM; OXIDATION; KINETICS |
Popis | Oxoporphyrinogens (OxPs) bind water molecules at pyrrolic NH and quinonoid carbonyl groups leading to visible colour changes due to variation in the pi-electronic structure of OxPs. Introduction of hydrophilic substituents at two pyrrole NH groups improves sensitivity to H2O, and one OxP derivative is a colorimetric indicator of trace H2O (similar to 50 ppm) in THF. |
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