'Sp 3' diaporamas de présentation

Chemical Bonding: Putting it Together 1. chemical bond: -ionic bond: -covalent bond:

Chemical Bonding: Putting it Together 1. chemical bond: -ionic bond: -covalent bond: -Electronegativity: -Polar Covalent: 2. octet rule: EXCEPTIONS 3. Lewis dot structure Formal Charge: Resonance: Isomers:. 4. Types of Bonds: -Single vs. double vs.triple bonds:

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Theories of Covalent Bonding

Theories of Covalent Bonding. 11.1 Valence Shell Electron Pair Repulsion Theory. 11.2 Valence Bond (VB) Theory and Orbital Hybridization. 11.3 Molecular Orbital (MO)Theory and Electron Delocalization. Covalent Bonding and Orbital Overlap.

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BAB 2

BAB 2. Orbital dan perannya pada Ikatan Kovalen. FROM LEWIS DIAGRAMS TO MOLECULAR SHAPE. VSEPR THEORY. IKATAN KOVALEN. H. H. H. H. H. H. ( Model tumpang tindih orbital). Atom yang terpisah. atoms move closer. Tumpang tindih orbital. Pembentukan Ikatan. :. H. O. H.

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Bonding

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Chemical Bonding II

Chemical Bonding II. Molecular Shape (VSEPR) Molecular polarity Bonding Theory Valence Bond Theory Molecular Orbital Theory. VSEPR Model. VSEPR (valence shell electron pair repulsion) model Useful for predicting the shapes of species that have main group elements as central atoms

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CHE 2060: Principles of Organic Chem

CHE 2060: Principles of Organic Chem. Introduction to organic structure & bonding, II 2.1: Covalent bonding in organic molecules A. The ? bond in the H2 molecule B. sp 3 hybrid orbitals and tetrahedral bonding C. sp 2 and sp hybrid orbitals and ? bonds

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Theories of Chemical Bonding

Theories of Chemical Bonding. Theories of bonding: explanations for chemical bond, Lewis dot structures and the following. Valance-bond (VB) theory Hybridization of atomic orbitals Multiple covalent bonds Molecular orbital (MO) theory Delocalized electrons Bonding in metals.

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Five Basic Geometries

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COORDINATION COMPOUNDS COMPLEX

COORDINATION COMPOUNDS COMPLEX. By s. r. ratnam. Alfred Werner Switzerland University of Zurich Switzerland b. 1866 d. 1919. Alfred Werner (1866-1919) 1893, age 26: coordination theory Nobel prize for Chemistry, 1913 Addition of 6 mol NH 3 to CoCl 3 ( aq )

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Montreal, Here and Now

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To Do

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?????????. ????????. Ti V Cr Mn Fe Co Ni Cu Zn Mo Ru Rh Pd Ag Cd Os Ir Pt Au Hg. Sc Ti V Cr Mn Fe Co Ni Cu Zn

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The Central Themes of VB Theory

The Central Themes of VB Theory. Themes. A set of overlapping orbitals has a maximum of two electrons that must have opposite spins. The greater the orbital overlap, the stronger (more stable) the bond. The valence atomic orbitals in a molecule are different from those in isolated atoms.

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SAMPLE EXERCISE 9.1 Using the VSEPR Model

Solve: (a) We can draw two resonance structures for O 3 :.

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Theories of Covalent Bonding

Theories of Covalent Bonding. Lewis + VSEPR theories lead to predictions of: bonding pairs electron pairs molecular shape But is silent about the types of orbitals used for bonding.

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Theories of Covalent Bonding

Theories of Covalent Bonding. Valence Bond (VB) Theory and Orbital Hybridization. The Mode of Orbital Overlap and the Types of Covalent Bonds. The Central Themes of VB Theory. Basic Principle.

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Chemical Bonding Set 5

Chemical Bonding Set 5. SAVE PAPER AND INK!!! When you print out the notes on PowerPoint, print "Handouts" instead of "Slides" in the print setup. Also, turn off the backgrounds (Tools>Options>Print>UNcheck "Background Printing")!. Credits.

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Catalytic Strategies to Convert 2-Halopyridines to 2-Alkylpyridines

Catalytic Strategies to Convert 2-Halopyridines to 2-Alkylpyridines. J. Miles Blackburn Roizen Group Duke University September 24 th , 2019 Content adapted from: Asian J. Org. Chem. 2019 , 8 , 920. 2-Alkylpyridines. Pyridine: most common heterocycle in bioactive molecules

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