Chemistry -- Chemical Bonding
- Created by: mehreen_1234
- Created on: 09-02-19 07:42
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- Two Sp2 orbitals overlap to form a single C-C bond called a sigma bond.
- Rotation can occur around a sigma bond.
- Formation of a sigma bond
- Covalent Bonding
- Sharing Electrons
- Dative Covalent bonding
- A dative covalent bond forms when the shared electrons in the covalent bond come from only one of the bonded elements.
- Examples:
- NH4+
- H3O+
- NH3BF3
- Dative bond acts like an ordinary covalent bond when thinking about the shape of NH4+; its tetrahedral.
- Examples:
- A dative covalent bond forms when the shared electrons in the covalent bond come from only one of the bonded elements.
- In terms of Orbital Overlap
- The atomic orbitals overlap they form molecular orbitals:
- Sp3
- 4 Sp3 hybrid orbitals will lead to a tetrahedral shape in molecules.
- Sp2
- Three Sp2 hybrid orbitals lead to a trigonal planar molecules
- Sp
- Two sp hybrid orbitals will lead to a linear shape in molecules
- Three orbitals can hybridise to give three new orbitals:
- Leaving 1 p orbital unhybridised
- Sp3
- The atomic orbitals overlap they form molecular orbitals:
- Covalent Bonding
- The Pi bond is formed by sideways overlap of two p orbitals on each carbon atom forming a Pi bond above and below the plane of the molecule.
- Formation of Pi bond
- Covalent Bonding
- Sharing Electrons
- Dative Covalent bonding
- A dative covalent bond forms when the shared electrons in the covalent bond come from only one of the bonded elements.
- Examples:
- NH4+
- H3O+
- NH3BF3
- Dative bond acts like an ordinary covalent bond when thinking about the shape of NH4+; its tetrahedral.
- Examples:
- A dative covalent bond forms when the shared electrons in the covalent bond come from only one of the bonded elements.
- In terms of Orbital Overlap
- The atomic orbitals overlap they form molecular orbitals:
- Sp3
- 4 Sp3 hybrid orbitals will lead to a tetrahedral shape in molecules.
- Sp2
- Three Sp2 hybrid orbitals lead to a trigonal planar molecules
- Sp
- Two sp hybrid orbitals will lead to a linear shape in molecules
- Three orbitals can hybridise to give three new orbitals:
- Leaving 1 p orbital unhybridised
- Sp3
- The atomic orbitals overlap they form molecular orbitals:
- Covalent Bonding
- The Pi bond is weaker than the sigma bond
- Formation of Pi bond
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