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Experimental evidence at atomic resolution for intramolecular N- H···π (phenyl) interactions in a family of amino acid derivatives (79 visite)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1997; 42(1): 1-6.
Tipo di articolo: Journal Article,
Impact factor: 2.425
Impact factor a 5 anni: 2.594
Parole chiave: Aromatic Compounds, Carboxylic Acids, Conformations, Derivatives, Hydrogen Bonds, Molecular Dynamics, Molecular Structure, Single Crystals, X Ray Diffraction Analysis, Benzyloxycarbonylated Anhydrides, Intramolecular Interactions, Amino Acids, Amino Acid Derivative, Globular Protein, Amino Acid Synthesis, Article, Cross Linking, Protein Folding, Protein Stability, Structure Activity Relation,
Four amino acid anhydrides were examined using X ray diffraction analysis to determine the intramolecular interactions at atomic resolution. The molecular structures of the Nα-benzyloxycarbonylated anhydrides from Cα,α-disubstituted glycines were compared with that of Ac6c based from their conformations, bond angles and distances. The overall molecular conformations of the acyclic anhydride was shown to occur between the N-H group of one half of the molecule and the phenyl ring of the other half.
Biopolymer Research Center, Department of Organic Chemistry, University of Padova, 35131 Padova, Italy
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