What do you mean by molecular orbital diagram?
A molecular orbital diagram, or MO diagram, is a qualitative descriptive tool explaining chemical bonding in molecules in terms of molecular orbital theory in general and the linear combination of atomic orbitals (LCAO) method in particular. MO diagrams can explain why some molecules exist and others do not.
What is molecular orbital theory of coordination complexes?
(Molecular orbitals describe the spatial distributions of electrons in molecules, just as atomic orbitals describe the distributions in atoms.) This theory accounts with remarkable success for most properties of coordination compounds. Carbon monoxide is a neutral ligand, meaning it does not carry an ionic charge.
What are the main features of molecular orbital diagram of a molecule?
(i) Molecular orbitals are formed by the linear combination of atomic orbitals having nearly the same energies. (ii) Molecular orbitals are associated with the nuclei of the bonded atom in a molecule. (iii) The number of molecular orbitals formed is equal to the number of combining atomic orbitals.
What is mot in coordination chemistry?
The molecular orbital theory can be very well applied to transition metal complexes to rationalize the covalent as well as the ionic character in the metal-ligand bond. A transition metal ion has nine valence atomic orbitals which are consisted of five nd, three (n+1)p, and one (n+1)s orbitals.
Which is the most powerful and superior theory to explain bonding in complexes?
Orbital bonding: Sigma and pi bonding combinations of s-, p-, and d-orbitals. Valence bond theory is used to explain covalent bond formation in many molecules, as it operates under the condition of maximum overlap, which leads to the formation of the strongest possible bonds.
How many molecular orbitals are in the octahedral complex?
3) As ligands are approaching along the axes in an octahedral complex, the six atomic orbitals i.e, a1g, t1u, and eg can form σ bond as their lobes are along the axes whereas the three atomic orbitals say t2g remains as non bonding since their lobes are between Page 2 the axes.
Who is the father of coordination chemistry?
Alfred Werner
Alfred Werner defined the basics of coordination chemistry, work for which he was awarded the Nobel Prize in chemistry in 1913.
Is ligand field theory and molecular orbital theory?
Ligand field theory (LFT) describes the bonding, orbital arrangement, and other characteristics of coordination complexes. It represents an application of molecular orbital theory to transition metal complexes. Other complexes can be described by reference to crystal field theory. …
Which is the best description of a molecular orbital diagram?
Molecular orbital diagram. Jump to navigation Jump to search. A molecular orbital diagram, or MO diagram, is a qualitative descriptive tool explaining chemical bonding in molecules in terms of molecular orbital theory in general and the linear combination of atomic orbitals (LCAO) molecular orbital method in particular.
Why do all molecules have the same number of orbitals?
A fundamental principle of these theories is that as atoms bond to form molecules, a certain number of atomic orbitals combine to form the same number of molecular orbitals, although the electrons involved may be redistributed among the orbitals.
How are bond orders calculated in molecular orbital theory?
In molecular orbital theory, we calculate bond orders by assuming that two electrons in a bonding molecular orbital contribute one net bond and that two electrons in an antibonding molecular orbital cancel the effect of one bond.
Why is the sigma orbital called a bonding orbital?
One of these orbitals is called a bonding molecular orbitalbecause electrons in this orbital spend most of their time in the region directly between the two nuclei. It is called a sigma() molecular orbital because it looks like an sorbital when viewed along the H-H bond.
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