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Stereoisomeric influence on 2D lattice structure: achiral meso ‐tartaric acid versus chiral tartaric acid
Author(s) -
Parschau Manfred,
Behzadi Bahar,
Romer Sara,
Ernst KarlHeinz
Publication year - 2006
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.2426
Subject(s) - tartaric acid , chemistry , lattice energy , crystallography , crystal structure , lattice (music) , intermolecular force , x ray photoelectron spectroscopy , diffraction , electron diffraction , stereochemistry , molecule , organic chemistry , chemical engineering , optics , physics , acoustics , engineering , citric acid
Small changes in molecular structure have consequences on long‐range lattice structure formation. We compare and discuss two‐dimensional lattice structures of achiral ( R , S )‐tartaric acid (TA) with structures of chiral ( R , R )‐ and ( S , S )‐TA, both generated on a Cu(110) surface. These diasteriomers are only distinguished by the relative position of hydroxyl groups at the C2 and C3 carbon atoms. Two‐dimensional crystal structures of both species have been identified via low energy electron diffraction (LEED) and characterized by XPS. The impact on two‐dimensional pattern formation due to small differences in intermolecular interaction is discussed. Copyright © 2006 John Wiley & Sons, Ltd.