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Dipeptide Crystals as Excellent Permselective Materials: Sequential Exclusion of Argon, Nitrogen, and Oxygen
Author(s) -
Afonso Rui V.,
Durão Joana,
Mendes Adélio,
Damas Ana M.,
Gales Luís
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201000007
Subject(s) - dipeptide , microporous material , permeation , oxygen , nitrogen , chemistry , argon , membrane , chemical engineering , materials science , combinatorial chemistry , organic chemistry , amino acid , biochemistry , engineering
Selective pores : Microporous dipeptide crystals can be used as single‐crystal membranes. In permeation experiments with N 2 , O 2 , and Ar, the main components of air, the crystals show high permeabilities and excellent selectivities (see picture). L ‐Alanyl‐ L ‐alanine crystals exhibit extremely high O 2 /N 2 selectivities.