Molecular recognition of amino acid esters by porphyrinatozinc(II): observation of a new binding mode

Autor:	Tao Li, Jin-Wang Huang, Liang-Nian Ji, Xiao-Bin Peng
Rok vydání:	2000
Předmět:	chemistry.chemical_classification Chemistry Stereochemistry Spectrophotometric titration macromolecular substances Ethyl ester Carbonyl group Amino acid Inorganic Chemistry chemistry.chemical_compound Molecular recognition Materials Chemistry Proton NMR Physical and Theoretical Chemistry
Zdroj:	Inorganica Chimica Acta. 305:111-117
ISSN:	0020-1693
Popis:	Molecular recognition of amino acid ethyl esters (guest) by 5-(2-carboxylphenyl)-10,15,20-triphenylporphyrinatozinc(II) (host 1) was investigated using UV–Vis spectrophotometric titration method. The host–guest binding mode was studied by 1H NMR and it was found that the carbonyl group of the guest coordinates to the Zn atom of host 1 and the amino group of the guest forms hydrogen-bonding with the carboxyl group of host 1. This is a new type of binding mode which had not been observed for previous metalloporphyrin–amino acid ester recognition systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::73b5bce3f2be7c1777ea866bee897176 https://doi.org/10.1016/s0020-1693(00)00121-3 Zobrazit plný text záznamu Full Text from ScienceDirect