C Crystal Structures Graphite Diamond Structures -Diamond:Insulator or wide bandgap semiconductor:-→-y→-→-→ ■Graphite:Planar structure:-→→-→ sp2 bonding ~2d metal (in plane) Structure makes the difference Other Carbon Crystal Structures “Buckyballs”(Cso) “Buckytubes”(nanotubes), other fullerenes-→→> Zheng LS(郑兰荪)，etal. Capturing the labile fullerene 50]as C50Cl10 SCIENCE304(5671):699-699APR302004
 Graphite & Diamond Structures Diamond: Insulator or wide bandgap semiconductor: →→→ →→→ Graphite: Planar structure: →→→ sp2 bonding ≈ 2d metal (in plane)  Other Carbon Crystal Structures “Buckyballs” (C60) →→→→→→ “Buckytubes” (nanotubes), other fullerenes →→→ C Crystal Structures C Crystal Structures Structure makes the difference Zheng LS (郑兰荪), et al. Capturing the labile fullerene[50] as C50Cl10 SCIENCE 304 (5671): 699-699 APR 30 2004
Role of Structural Chemistry in Life Science What do proteins do Proteins are the basis of how biology gets things done. As enzymes,they are the driving force behind all of the biochemical reactions which makes biology work. As structural elements,they are the main constituents of our bones,muscles,hair,skin and blood vessels. As antibodies,they recognize invading elements and allow the immune system to get rid of the unwanted invaders
Role of Structural Chemistry Role of Structural Chemistry in Life Science in Life Science What do proteins do ? Proteins are the basis of how biology gets things done. • As enzymes, they are the driving force behind all of the biochemical reactions which makes biology work. • As structural elements, they are the main constituents of our bones, muscles, hair, skin and blood vessels. • As antibodies, they recognize invading elements and allow the immune system to get rid of the unwanted invaders
What are proteins made of Proteins are necklaces of amino acids,i.e.long chain molecules Primary protein structure is sequence of a chain of amino acide Amino Acids NH H- C-COOH Amino Acid Objective of Structural Chemistry 1)Determining the structure of a known substance 2)Understanding the structure- property relationship 3)Predicting a substance with specific structure and property
What are proteins made of ? • Proteins are necklaces of amino acids, i.e. long chain molecules. Objective of Structural Chemistry Objective of Structural Chemistry 1) Determining the structure of a known substance 2) Understanding the structureproperty relationship 3) Predicting a substance with specific structure and property
Outline Chapter 1 The basic knowledge of quantum mechanics Chapter 2 Atomic structure Chapter 3 Symmetry Chapter 4 Diatomic molecules Chapter 5/6 Polyatomic structures Chapter 7 Basics of Crystallography Chapter 8 Metals and Alloys Chapter 9 lonic compounds Chapter 1 The basic knowledge of quantum mechanics
Chapter 1 The basic knowledge of quantum mechanics Chapter 2 Atomic structure Chapter 3 Symmetry Chapter 4 Diatomic molecules Chapter 5/6 Polyatomic structures Chapter 7 Basics of Crystallography Chapter 8 Metals and Alloys Chapter 9 Ionic compounds Outline Outline Chapter 1 The basic knowledge of quantum mechanics
1.1 The failures of classical physics Classical physics:(prior to 1900) Newtonian classical mechanics Maxell's theory of electromagnetic waves Thermodynamics and statistical physics 1.1.1 Black-body radiation
1.1 The failures of classical physics • Classical physics: (prior to 1900) Newtonian classical mechanics Maxell’s theory of electromagnetic waves Thermodynamics and statistical physics 1.1.1 Black-body radiation