By Abraham Ulman
The improvement of orientated natural monomolecular layers through the Langmuir-Blodgett (LB) and self-assembly (SA) strategies has led researchers towards their target of assembling person molecules into hugely ordered architectures. hence the constantly becoming contribution of LB and SA platforms to the chemistry and physics of skinny natural motion pictures is well known. both famous is the trouble in maintaining thus far with the burgeoning multidisciplinary learn during this quarter. Dr. Ulman presents an enormous survey of the on hand literature. The ebook starts with a bit on analytical instruments to expand the knowledge of the constitution and houses of monolayers and movies. Following sections speak about LB movies, the practise and houses of SA monolayers and flicks, the modeling of LB and SA monolayers, and the applying of LB and SA movies.
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Extra resources for An Introduction to Ultrathin Organic Films. From Langmuir–Blodgett to Self-Assembly
Used x-ray reflectivity in a comparison with ellipsometry to study SA monolayers of alkyltrichlorosilanes . This study helped in establishing the structure of partial monolayers of OTS on silicon. ) Both studies are discussed further in Part Three. Grayer Wolf et al. , a palmitoyl-(R)-lysine + derivative, [ C H 3 ( C H 2 ) 1 4 - C O - N H - ( C H 2 ) 3 - C H 2 - C H ( N H 3 ) C O O - ] , on the water surface . The coherence length was 500 Â, and the packing 38 arrangement of the α-amino acid head groups was very similar to that found in the crystal structure of the α form of glycine.
Showed in a later work that the interior arachidic-acid bilayers retained asymmetry . Dutta et al. reported on x-ray studies of monolayers of lead stéarate and then lignoceric acid (C^H^CC^H) on the water surface . 8 Â in a triangular lattice, and a first-order melting transition with increasing area. Later, they compared lead stéarate, tetracosamoinc acid, and 1-eicosanol . In an interesting, detailed work, Barton et al. studied LB monolayers of 1-heneicosanol (C 2 1H 4 3OH) on water .
Their results suggest that the phthalocyanine plane faces the dipping direction, but is not perpendicular to the substrate surface. Fujiki and Tabei studied LB films of several phthalocyanines containing rm-butyl, isopropyl and cyano groups, both in the free base and Ni(II), Cu(II), and Pb(II) complexes . While they could not suggest a packing arrangement in these films, their results suggested an edgeon configuration of the macrocycle at the water-air interface. Dent et al. reported on x-ray reflectivity results from three phthalocyanine derivatives .
An Introduction to Ultrathin Organic Films. From Langmuir–Blodgett to Self-Assembly by Abraham Ulman