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1:17:42 University of California Irvine (UCI) English 2013

Lecture 05. Non-Covalent Interactions, DNA.

UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:10:56 DNA 0:11:11 The Lennard-Jones Potential 0:14:28 Rouges Gallery of Non-Covalent Interactions 0:21:44 Comparing Energetics 0:25:06 All Biology Involves Water 0:28:36 Receptor-Ligand Interactions 0:33:01 Biooligomers on Earth: Modularity 0:34:35 Form Follows Function to Biology 0:39:51 Non-Covalent Bonding Summary 0:43:31 Structure of DNA: Double Helix 0:49:02 The DNA Bases 0:52:40 The Missing 2-OH of DNA Confers Stability 0:59:25 The DNA Bases are Subject to Modification 1:01:39 Watson-Crick Base Pairs form U-Shape 1:02:35 Molecular Recognition 1:14:13 DNA Intercalation: Untwisting of DNA
  • Published: 2013
  • Publisher: University of California Irvine (UCI)
  • Language: English
1:18:25 University of California Irvine (UCI) English 2013

Lecture 11. Proteins and Amino Acid Conformations, Part 2.

UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Instructor: Gregory Weiss, Ph.D. Description: Introduction to the basic principles of chemical biology: structures and reactivity; chemical mechanisms of enzyme catalysis; chemistry of signaling, biosynthesis, and metabolic pathways. Index of Topics: 0:28:13 Amino Acids and Proteins 0:30:53 a-Helices Form a Dipole 0:31:09 B-Sheets Come in Two Flavors 0:34:39 Secondary Structure - Backbone, Conformations 0:44:40 Conformational Analysis for the Cognoscente (White Board) 0:58:07 Amino Acids Examples (White Board) 1:05:01 Conformations to Watch For 1:09:38 Allylic Strain Dominates the Protein Backbone 1:13:10 Disulfide Bonds in Proteins 1:15:34 Protein Structure 1:17:50 All a-Helical Proteins
  • Published: 2013
  • Publisher: University of California Irvine (UCI)
  • Language: English
52:38 University of California Irvine (UCI) English 2014

Lecture 02. Particles, Waves, the Uncertainty Principle and Postulates of QM

UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:20 Louis de Broglie 0:02:32 Where is the Particle? 0:14:49 Waves 0:19:20 Practice Problem: de Broglie Wavelength 0:21:16 Wavefunctions 0:29:16 The Postulates of QM
  • Published: 2014
  • Publisher: University of California Irvine (UCI)
  • Language: English
53:15 University of California Irvine (UCI) English 2014

Lecture 26. Qualitative MO Theory

UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:00:29 MO Diagrams 0:03:36 Qualitative Guidelines 0:10:08 Homonuclear Diatomics 0:18:13 Bond Order Matches Intuition 0:29:42 Photoelectron Spectroscopy 0:35:53 Hybrid Orbitals 0:45:13 Making Bonds 0:48:24 Normalizing the Hybrids 0:50:09 Other Hyrbid Combinations
  • Published: 2014
  • Publisher: University of California Irvine (UCI)
  • Language: English
50:06 University of California Irvine (UCI) English 2014

Lecture 27. CH4 Molecular Orbitals and Delocalized Bonding

UCI Chem 131A Quantum Principles (Winter 2014) Instructor: A.J. Shaka, Ph.D Description: This course provides an introduction to quantum mechanics and principles of quantum chemistry with applications to nuclear motions and the electronic structure of the hydrogen atom. It also examines the Schrödinger equation and study how it describes the behavior of very light particles, the quantum description of rotating and vibrating molecules is compared to the classical description, and the quantum description of the electronic structure of atoms is studied. Index of Topics: 0:01:38 MO Picture for CH4 0:13:53 CH4 PES 0:18:52 Delocalization 0:21:45 Ethylene 0:34:02 Benzene 0:43:44 Aromaticity
  • Published: 2014
  • Publisher: University of California Irvine (UCI)
  • Language: English
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