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Oriented Crystalline Monolayers and Bilayers of 2×2 Silver( I ) Grid Architectures at the Air‐Solution Interface: Their Assembly and Crystal Structure Elucidation
Author(s) -
Weissbuch Isabelle,
Baxter Paul N. W.,
Kuzmenko Ivan,
Cohen Hagai,
Cohen Sidney,
Kjaer Kristian,
Howes Paul B.,
AlsNielsen Jens,
Lehn JeanMarie,
Leiserowitz Leslie,
Lahav Meir
Publication year - 2000
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/(sici)1521-3765(20000218)6:4<725::aid-chem725>3.0.co;2-e
Subject(s) - monolayer , interface (matter) , materials science , nanotechnology , grid , self assembly , crystallography , chemistry , molecule , organic chemistry , gibbs isotherm , geometry , mathematics
Oriented crystalline monolayers, ∼14 Å thick, of a 2×2 Ag + grid complex, self‐assembled at the air‐solution interface starting from an water‐insoluble ligand 3,6‐bis[2‐(6‐phenylpyridine)]pyridazine spread on silver‐ion‐containing solutions, were examined by grazing‐incidence X‐ray diffraction and specular X‐ray reflectivity using synchrotron radiation. The monolayer structure was refined, including a determination of the positions of the counterions, with the SHELX‐97 computer program. The monolayers were transferred from the interface onto various solid supports and visualized by scanning force microscopy, and characterized by X‐ray photoelectron spectroscopy in terms of molecular structure. On surface compression, the initial self‐assembled monolayer undergoes a transition to a crystalline bilayer in which the two layers, almost retaining the original arrangement, are in registry. Such a phase transition is of relevance to the understanding of crystal nucleation.