Molecules, concept

Newkome GR, Moorefield CN, Vogtle F (1996) Dendritic molecules concepts, synthesis, perspectives. VCH, Weinheim... 

S. K. Choi, Synthetic multivalent molecules concepts and biomedical applications, Wiley, New York, 2004. 

For comprehensive review of the synthesis of different dendrimers, see G. R. Newkome, C. N. Moorefield, F. Vogtle, Dendritic Molecules Concepts, Synthesis, Perspectives , WILEY-VCH, Weinheim 1996. 

Mattice, W. L. Masses, sizes and shapes of macromolecules from multifunctional monomers in Newkome, G. R., Moorefield, C. N. and Vogtle, F. (eds), Dendritic Molecules. Concepts, Synthesis, Perspectives, Chapter I, VCH Verlag, Weinheim, Germany, 1996. 

Newkome GR, Moorelield CN, Vogtle P, Dendritic Molecules Concepts, Syntheses, Perspectives, Wiley-VCH, Weinheim, 1996. 

In 1993 during a visit to Bonn, we decided to document the early years of this dynamic topic, and Dendritic Molecules Concepts, Syntheses, Perspectives was conceived. The expansion of cascade construction into the macromolecular regime has in essence proven that there is no longer a molecular (weight or size) ceiling for chemists and others interested in materials science. We hope that this book will spark the reader s imagination to create new routes to dendritic or hyperbranched materials. In view of the increasing interest in macromolecular construction via dendrimers, there is little doubt in our minds that the surface of this topic has just been scratched. 

Chemisorption is a phenomenon of importance in catalysis which may be treated by MO theory. Experimental studies have been carried out for a variety of systems, but theoretical descriptions of the electronic features of chemisorption beyond simple considerations are in a primitive stage. There are several factors responsible for this state of affairs. One is, of course, the complexity of the substrate system to be modeled, which has forced theorists to work with a small-size representation for the surface, as implied by the surface molecule concept of localized interactions. Although some early work has been done by... 

Most of the calculations support the use of the surface molecule concept. The features predicted for metals such as Ni and Pb and nonmetals such as C are in accord with what is expected from experimental measurements. One exception is the graphite surface where different adsorption properties were found, depending on whether a finite or infinite surface model was employed. 

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