Chap.9 Molecular Geometry and Bonding Theories 9.I Molecular Geometry 9.2 YSEPR model 9.3 Molecular Shape and Molecular Polarity 9.4 Covalent Bonding and Orbital Overlap 9.5 Hybridization Hybrid Orbitals 9.6 Multiple bond 9.7 Molecular Orbitals
Chap. 9 Molecular Geometry and Bonding Theories 9.1 Molecular Geometry 9.2 VSEPR model 9.3 Molecular Shape and Molecular Polarity 9.4 Covalent Bonding and Orbital Overlap 9.5 Hybridization & Hybrid Orbitals 9.6 Multiple bond 9.7 Molecular Orbitals
9.1 Molecular Geometry/Shape 分子构型 The shape of a molecule determines its odor,taste and actions as a drug.It governs the reactions that take place throughout our bodies. Melting po int 熔点 结构 性质 Boiling po int 沸点 :olecular geometry→structure→properties density 密度 solubility 溶解度 reactivity... 反应性 alibaba.com.cn crsce
9.1 Molecular Geometry/Shape The shape of a molecule determines its odor, taste and actions as a drug. It governs the reactions that take place throughout our bodies. int int Melting po B Molecular geo oiling po metry structure properties density → → 分子构型 熔点 沸点 密度 结构 性质 lub ... Molecular geo density so ility structure reactivit metr prope y y rties → → 密度 溶解度 反应性
Do SO2,CO2 and NO2 have the similar 3D structures? Polarity! 极性 Polar? Non-polar？ 极性 非极性
Polar? Non -polar? Do SO 2, CO 2 and NO2 have the similar 3D structures? Polarity! 极性 Polar? Non -polar? 极性 非极性
Lewis structures “Shared”the pair of H-N-H valence electrons by the two atoms---Covalent bond H 0=C=0 H-C≡N :人 应 Central atoms
Lewis structures O=C=O “Shared” the pair of valence electrons by the two atoms---Covalent bond Central atoms
Molecular Geometry (Shapes) 分子构型 Lewis structures give atomic connectivity 如 The shape of a molecule is determined by its bond angles HC H 键角 ox H Bond distance, 1.78A Bond angle, 109.5
Molecular Geometry (Shapes) Lewis structures give atomic connectivity The shape of a molecule is determined by its bond angles H H H C Hx x x x 分子构型 键角