Colorimetric detection of trace water in tetrahydrofuran using N,N '-substituted oxoporphyrinogens

• Authors: ISHIHARA Shinsuke; LABUTA Jan; ŠIKORSKÝ Tomáš; BURDA Jaroslav V.; OKAMOTO Naoko; ABE Hideki; ARIGA Katsuhiko; HILL Jonathan P
• Year of publication: 2012
• Type: Article in Periodical
• Magazine / Source: Chemical Communications
• MU Faculty or unit: Central European Institute of Technology
• Web: http://pubs.rsc.org/en/content/articlelanding/2012/cc/c2cc31118f
• Doi: http://dx.doi.org/10.1039/c2cc31118f
• Field: Biochemistry
• Keywords: MAIN-GROUP THERMOCHEMISTRY; ORGANIC-SOLVENTS; NONCOVALENT INTERACTIONS; DYES; SOLVATOCHROMISM; OXIDATION; KINETICS
• Description: 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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• CEITEC - Central European Institute of Technology