Affiliation:
1. Gruppo Editoriale Tab S.r.l.
Abstract
The structure of graphene has been described in this research work by introducing some innovative elementary theoretical concepts such as: - interpretation of the free electron pair not as a concentration of the electron cloud on one side of the nucleus (lone pair), but as a symmetrical distribution of the electron cloud on both sides, - hypothesis that in polar bonds and the vast majority of multiple bonds, one electron is shared, not an electron pair and distinction of intermolecular bonds in bi-electronic and mono-electronic, - interpretation of the transformation of the geometry of molecules in relation to the number of bonds as a result of changes in the spatial relationships between atoms, and not as a result of the hybridization of orbitals and prediction and calculation of the spatial parameters of molecules (topology, bond lengths and angles) by applying trigonometric equations and other geometric rules, - consideration that the formation of multiple bonds occurs thanks to the transformation of bi electronic bonds (sigma) into mono-electronic bonds. This transformation serves to increase the quantity of electrons available to form pi bonds which intensifies the cohesion between the atoms. According to the proposed model, it is a dense cross-linking of π bonds inside each graphene ring that allows exceptional cohesion, strength and stability to a thin "spiderweb" formed by a single layer of atoms.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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