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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 1 Molecular Geometry of Molecules with No Lone Pair(s) on the Central Atom
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 2 Molecular Geometry of Molecules with Lone Pair(s) on the Central Atom
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 3 Carbon Dioxide and Water CO 2 H2OH2O
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 4 Dipole Moments and Structure The net polarity is down; this is a polar molecule. There is no net polarity; this is a nonpolar molecule. Cis-1,2-dichloroethene Trans-1,2-dichloroethene
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 5 Formation of H 2 – Valence Bond Theory Two non-interacting hydrogen atoms Start of Interaction – Minimum Overlap Further Interaction – Intermediate Overlap Maximum Interaction – Maximum Overlap Bond has been formed – distance between nuclei is the bond length
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 6 sp 3 Hybridisation
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 7 Hybrid Orbitals
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 8 Bonding in Ethene
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 9 Sigma ( ) and Pi ( ) Bonds
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 10 Bonding in Ethyne
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 11 Bonding and Antibonding Molecular Orbitals in H 2 and the Energy-Level Diagram
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 12 Sigma and Pi Bonding from 2p Orbitals Sigma Bonding –Electron Density Along Nuclear Axis Pi Bonding –Electron Density Above and Below Nuclear Axis
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 13 Energy-Level Diagrams for H + 2, H 2, He + 2 and He 2
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Chemical Bonding II – Molecular Geometry and Hybridisation of Atomic Orbitals General Chemistry I CHM 111 Dr Erdal OnurhanSlide 14 Energy-Level Diagram for Li 2
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