pi bonding in benzene

X-ray studies show that a Benzene molecule is a flat (planar) molecule. All carbon and hydrogen atoms lie in the same plane. It has a regular hexagon structure with all six carbon atoms lying at the corners; each carbon atom is bonded to three other atoms. All carbon-ca..

The following facts support the resonance structure of benzene: The carbon-carbon bond length in benzene is identical at 139 pm, for all bonds. This value is intermediate between the bond lengths for C-C bond (154 pm) and C = C (134 pm)..

Can we imagine a world without oxygen, nitrogen, water or carbon dioxide? Without any of these there would be no life at all. All the above mentioned compounds are covalent compounds formed by sharing of electrons. Non-metal atoms share the valence electrons and form molecules. These shared pairs o..

Metallic Bond (Band Theory) - Metals constitute about three fourths of all the known elements. They have characteristic properties such as bright luster, high electrical and thermal conductivity, malleability, ductility and high tensile strength. The attractive force, which binds various ..

Conditions for Hydrogen Bonding - Since hydrogen bond comes into existence as a result of dipole-dipole interactions between the molecules, therefore, following conditions are required for effective hydrogen bonding. (i) Hydrogen atom should be bonded to..

Main Postulates - I) The metal ligand bond arises by donation of pair of electrons by ligands to the central metal atom. II) To accommodate these electrons the metal ion must possess requisite number of vacant orbitals of equal energy. These orbitals of the metal atom undergo hybridi..

(supported by high dipole of the order of 2 - 2.2 D..

When the two atoms overlap due to the sideways overlap of their 'p' orbitals, the covalent bond is called as pi( p ) bond. In a pi bond the electron density is concentrated in the region perpendicular to the bond axi..

In molecules containing double bond, which has a pi bond, there is no free rotation and such molecules exist in isomeric forms of 'cis' and 'trans'. In the 'cis' form the similar atoms lie on the same side of a plane placed along the internuclear axis while in the 't..