A new definition of covalent bond orders, based on partitioning of the number of electrons within the topological theory of atoms in molecules, is proposed. Unlike the previously proposed definitions, it requires neither references to the basis sets used in the expansion of the molecular wave funct...
5. In these materials, the atoms are strongly bonded by covalent or ionic bonds along the intrachain direction but mediated by weak vdW forces along the interchain direction, which results in significantly anisotropic electronic, and structural properties. For example, K2Cr3As386, Cs2Cr3As387 and...
Amorphous solids do not exhibit long-range order due to the disordered arrangement of atoms. They lack translational and rotational symmetry on a macroscopic scale and are therefore isotropic. As a result, differential absorption of polarized light, called dichroism, is not known to exist in amorpho...
In diamond crystals, each carbon atom forms covalent single bonds by sp3 hybridization orbitals with four carbon atoms, and the covalent bond has a bond length of about 1.55 Å and a bond angle of 109.5°, constituting an ortho-tetrahedral structure [41]. GDY has the properties of enriched...
In contrast to the ionic character of the graphite−alkali metal bonds, transition metal atoms are covalently bonded within the graphene layers. These strong covalent bonds cause large in-plane lattice distortions of the graphene layers [368,369]. An increase of the carbonization temperature and ...
The Mo-S bond in MoS2 is predominantly covalent in nature, meaning that the electrons are shared between the two atoms. This results in strong bonding between the Mo and S atoms within each sheet, contributing to the strong mechanical properties and thermal stability of the material. On the ...
Serum albumin as a primary non-covalent binding protein for nitro-oleic acid. Int. J. Biol. Macromol. 2022, 203, 116–129. [Google Scholar] [CrossRef] [PubMed] Alexandri, E.; Venianakis, T.; Primikyri, A.; Papamokos, G.; Gerothanassis, I.P. Molecular basis for the selectivity ...
electrons helps in holding cations with each other. The electrostatic attraction between the cations are strong which can be depicted from their compact arrangements of atoms. This results in high melting point and specific gravity. Metallic bonds have non-directional nature so, plastically deformable...
If atoms are "non-radiative oscillators," then rather than the few-angstrom coupling of covalent and H bonds, there would be an extensive set of interesting effects which reach outwards to 100X and 1000X distances beyond chemical bond lengths. Such phenomena would tend to be collected under the...
Having the chemical properties of noble gases, Xenon cannot form covalent bonds with other molecules. However, it can still have binding action via van der Waals forces. These forces occur in instantaneously polarized atoms. This can be the only mechanism of binding, since noble gases are non-...