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CHAPTER 5 THEORY OF CHEMICAL BONDING - Coggle Diagram
CHAPTER 5 THEORY OF CHEMICAL BONDING
VALANCE BOND THEORY
ATOMIC ORBITAL OVERLAP
A COVALENT BOND IS FORMED BY THE PAIRING OF TWO ELECTRONS WITH OPPOSING SPINS IN THE REGION OF OVERLAP OF ATOMIC ORBITALS BETWEEN TWO ATOMS
OVERLAP REGION HAS HIGH ELECTRON CHARGE DENSITY
-BONDING ELECTRONS ARE LOCALIZED IN THE REGION OF ATOMIC ORBITAL OVERLAP
SIGMA BOND
OVERLAPPING OF ONE S ORBITAL WITH ANOTHER S ORBITAL
OVERLAPPING OF ONE S ORBITAL WITH A P ORBITAL
HEAD ON OVERLAPPING OF ONE P WITH ANOTHER P ORBITAL
PI BOND
OVERLAPPING OF ONE S ORBITAL WITH ANOTHER S ORBITAL SIDEWAYS OVERLAPPING OF ONE P ORBITAL WITH ANOTHER P ORBITAL
MOLECULAR ORBITAL THEORY
A THEORY OF THE ELECTRONIC STRUCTURE OF MOLECULES IN TERMS OF MOLECULAR ORBITALS, WHICH MAY SPREAD OVER SEVERAL ATOMS OR THE ENTIRE MOLECULE.
VBT
A MOLECULE IS A GROUP OF ATOMS BOUND TOGETHER THROUGH LOCALIZED OVERLAP OF VALENCE-SHELL ATOMIC ORBITALS
EACH ATOM IN A MOLECULE RETAIN ITS AO IN A MOLECULE
MOT
A MOLECULE IS A COLLECTION OF NUCLEI WITH THE ELECTRON ORBITALS DELOCALIZED OVER THE ENTIRE MOLECULE
MIXING OF AO FORMING MO WITH A GIVEN ENERGY AND SHAPE THAT ARE OCCUPIED BY MOLECULE’S ELECTRONS
MOLECULAR ORBITAL (MO) CONFIGURATION
NUMBER OF MOLECULAR ORBITAL ALWAYS EQUAL TO NUMBER OF ATOMIC ORBITAL COMBINED
FILLING MO FROM LOW TO HIGH ENERGIES
HUND’S RULE APPLIED WHEN FILLING UP ORBITAL
PARAMAGNETISM
PARAMAGNETISM (SUBSTANCE ATTRACTED INTO MAGNETIC FIELD) UNPAIRED ELECTRONS
DIAMAGNETISM (SUBSTANCE REPELLED FROM MAGNETIC FIELD) PAIRED ELECTRONS
VALENCE SHELL ELECTRON PAIR REPULSION THEORY
TWO TYPES OF GEOMETRIES
ELECTRON-GROUP GEOMETRY (LOCATIONS OF HIGH ELECTRON DENSITY)
MOLECULAR GEOMETRY (SHAPE OF MOLECULE OF ARRANGMENT OF ATOMS)
HYBRID ORBITAL THEORY
HYBRIDIZED ORBITALS INCLUDE sp, sp2, sp3, sp3d, AND sp3d2
SINGLE BONDS ARE ALL HYBRIDIZED SIGMA BONDS, DOUBLE BONDS HAVE ONE SIGMA BOND AND ONE PI BOND, TRIPLE BONDS HAVE ONE SIGMA BOND AND TWO PI BONDS