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H 2 O the C−C bond length has increased to 134 picometres from 133 pm for ethylene. In the nickel compound Ni(C 2 H 4 )(PPh 3 ) 2 the value is 143 pm. The interaction also causes carbon atoms to "rehybridise" from sp 2 towards sp 3 , which is indicated by the bending of the hydrogen atoms on the ethylene back away from the metal. [ 4 ]
These are oriented orbitals which show the bonding direction. QUAOs are characterized by their Bond Order (BO), Kinetic Bond Order (KBO) which is a measure of the strength of the bond, and their occupation number. The QUAO analysis allows users to study bonding patterns in molecules or small to medium size with a high degree of accuracy.
Carbon–oxygen bond; Carbon–hydrogen bond; Catch bond; Cation–π interaction; Cation–cation bond; Chalcogen bond; Charge-shift bond; Chemical bonding model; Chemical bonding of water; Chemical specificity; Compliance constants; Cooperative binding; Cooperativity; Coordinate covalent bond; Coordination geometry; Ligand isomerism ...
Intermediate kinds of bonding: A solid with extensive hydrogen bonding will be considered a molecular solid, yet strong hydrogen bonds can have a significant degree of covalent character. As noted above, covalent and ionic bonds form a continuum between shared and transferred electrons; covalent and weak bonds form a continuum between shared ...
Bond order is the number of chemical bonds between a pair of atoms. The bond order of a molecule can be calculated by subtracting the number of electrons in anti-bonding orbitals from the number of bonding orbitals, and the resulting number is then divided by two. A molecule is expected to be stable if it has bond order larger than zero.
A chemical bond is the association of atoms or ions to form molecules, crystals, and other structures. The bond may result from the electrostatic force between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds, or some combination of these effects.
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An MDL Molfile is a file format for holding information about the atoms, bonds, connectivity and coordinates of a molecule.. The molfile consists of some header information, the Connection Table (CT) containing atom info, then bond connections and types, followed by sections for more complex information.