Chapter 11 Organic Chemistry
Organic Chemistry The study of compounds that contain the element carbon Organic molecules contain carbon Hydrocarbons (CH4, C3H8, C6H6), various acids (C2H4O2), sugars, proteins, DNA, etc. Pharmaceuticals, clothes, gasoline, plastic, nearly everything inside of a living organism, etc.
Drawing organic molecules Condensed structures – chemical formula shorthand for organic molecules Start from left and go to the right, writing the number of H atoms attached to each carbon CH4 Condensed structure C3H8 CH3CH2CH3 CH3CH2CH3
Condensed structures cont. Repeating regions can be abbreviated in parenthesis
Practice Draw out the structures from the condensed formulas CH3CCl3 CH3CH2OBr CH3(CH2)3NH2 CCl3NH(CH2)2OC(CH3)3
Skeletal Structures Unlabeled junctions/vertices represent carbon atoms Assume there are enough hydrogens around each carbon to give it four bonds Heteroatoms (non carbon atoms, N,O, halogens) are drawn with any hydrogens attached as well. Consider VSEPR geometry as guideline for structures
Multiple bonds and rings
Practice Draw the Lewis structure from the following skeletal structures
Functional groups An atom or group of atoms with characteristic chemical and physical properties Defined by atom connectivity Structure determines function/properties
Organic chemistry Taking organic molecules and transforming them into other organic molecules Changing functional groups Combining molecules
Chapter 11 Review Organic molecules Drawing organic molecules Intro to organic chemistry