Benzene Moiety of Alkylphenol Ethoxylates can be a Source of Π Stacking Interactions

Autor:	R. Frański
Rok vydání:	2009
Předmět:	Tetramethylammonium Alkylphenol General Chemical Engineering Electrospray ionization Stacking General Chemistry Condensed Matter Physics Ring (chemistry) Medicinal chemistry chemistry.chemical_compound chemistry Mass spectrum Organic chemistry Moiety Benzene
Zdroj:	Tenside Surfactants Detergents. 46:159-162
ISSN:	2195-8564 0932-3414
DOI:	10.3139/113.110019
Popis:	In this communication, it has been demonstrated by using electrospray ionization mass spectrometry (ESI-MS) that benzene moiety of alkylphenol ethoxylates (common non-ionic surfactants) can be a source of stacking interactions. Three cations being prone to interact with aromatic ring have been used: Cu2+, Ag+ and tetramethylammonium cation (CH3)4N+. Because of cation- interactions the stabilities of the complexes of alkylphenol ethoxylate with these cations have been enhanced, as evidenced by relative intensities of respective peaks in the ESI mass spectra. Oxygen atoms from ethoxylene chain interact with the cations, and these ion-dipole interactions compete with cation- interactions, therefore cation- interactions have been observed for alkylphenol ethoxylates with shorter ethoxylene chain.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dec0937f7c83c15b9924cffcfb12ba79 https://doi.org/10.3139/113.110019 Zobrazit plný text záznamu