Upload File

lewis structures of organic molecules

13
1 1 Lewis Structures of Organic Molecules Dr. C. Yau Fall 2013

Upload: emera

Post on 25-Feb-2016

28 views

Category:

Documents


0 download

Report

Tags:

DESCRIPTION

Lewis Structures of Organic Molecules. Dr. C. Yau Fall 2013. 1. 1. Organic Molecules. Organic chemistry is a study of compounds containing carbon . In addition, they contain mostly H, O and some N, S and P, and other elements. Those containing metals are said to be “organometallic.” - PowerPoint PPT Presentation

TRANSCRIPT

Page 1: Lewis Structures of Organic Molecules

111

Lewis Structuresof Organic Molecules

Dr. C. YauFall 2013

Page 2: Lewis Structures of Organic Molecules

2

Organic MoleculesOrganic chemistry is a study of compounds

containing carbon.In addition, they contain mostly H, O and

some N, S and P, and other elements.Those containing metals are said to be

“organometallic.”Hydrocarbons are compounds containing

only H and C.They are nonpolar because they contain onlyC-C and C-H bonds, which are nonpolar.

Page 3: Lewis Structures of Organic Molecules

3

Hydrocarbons

CH4

C2H6

C3H8

CH H

H

H

CH

H

H

C HH

H

CH

H

HC

C

H

HH

H

H

H C H

H

H

H C C C H

H

H

H

H

H

H

H C C H

H

H

H

H

Remember that C with 4 bonds is tetrahedral.

Page 4: Lewis Structures of Organic Molecules

4

Various Representations of Organic Molecules

Abbreviated

Line Drawings

Page 5: Lewis Structures of Organic Molecules

5

Isomers of Hydrocarbons

Beyond C3H8, there are isomers.

For example C5H12 has 3 isomers.

CH3CH2CH2CH2CH3

CH3CHCH2CH3

CH3

CH3CCH3

CH3

CH3

Page 6: Lewis Structures of Organic Molecules

Classification of Organic Compounds

Organic compounds are classified by the “functional group” that replaces one or more of the H atoms in a hydrocarbon.Substitution of a H with –OH transforms it into an alcohol.For example, replacing one H with –OH in methane makes it methyl alcohol (or methanol).

6

Page 7: Lewis Structures of Organic Molecules

Alcohols

7

H C H

H

HH C OH

H

H

C C H

H

H

H

H

HC C OH

H

H

H

H

H

methane methyl alcohol

ethane ethyl alcohol (in booze)

Page 8: Lewis Structures of Organic Molecules

8

Alcohols Contain -OH....but don’t call them hydroxides!!!Hydroxides are only for ionic cmpds.

They contain O-H and C-O bonds, which are polar.

Page 9: Lewis Structures of Organic Molecules

9

Carboxylic AcidsThese contain –COOH group or –CO2H

Learn this structure:

Formic acid HCOOH or HCO2H

CO

O H..:

: :

H CO

O H..:

: :

Page 10: Lewis Structures of Organic Molecules

10

MEMORIZE THIS!

Acetic acid CH3COOH or CH3CO2H

CO

O H

CH

H

H ..:

: :

Is it polar?

Page 11: Lewis Structures of Organic Molecules

11

Amines Contain N

CH3NH2

CH3CH2NH2

CH3NHCH3

CH3 NHH

CH3CH2 NHH

CH3 N HCH3

NH2

(CH3)2NH

..

..

..

They typically have an unpleasant odor, some with a fishy smell.

Page 12: Lewis Structures of Organic Molecules

12

Acetone (fingernail polish remover)

Acetone belongs in class called ketones.Memorize the structure of acetone.It is a very common organic solvent.CH3COCH3 or (CH3)2CO

CH3C CH3

O: :

Page 13: Lewis Structures of Organic Molecules

13

BenzeneBenzene is another very common organic

solvent.

What is its molecular formula?


ORGANIC MOLECULES OF THE CELL. Organic Molecules Organic Molecules are generally large compounds that are composed of Carbon and Hydrogen atoms General

Naming Organic Molecules

Organic Molecules - kubesclass.weebly.com

Organic Molecules Biology 1. Organic Molecules So we talked about atoms We go up to the next level MOLECULES!!!!!

Chemistry of Organic Molecules 3.1 Organic molecules overview

An Introduction to Organic Molecules. Organic Molecules Organic molecules are made primarily of four elements : C, N, O, H Backbone is C Polymers are

1Macromolecules. Molecules of Life Macromolecules organic molecules which are carbon-basedMacromolecules are large organic molecules which are carbon-based

Synthesis of Complex Organic Molecules: Organic Molecules ... · HET618-M07A01: Synthesis of Complex Organic Molecules: Organic Molecules in Space PAGE 3 OF 57 Introduction There

Organic Molecules Biology 1. Organic Molecules… So we talked about atoms… We go up to the next level… –MOLECULES!!!!!

Organic Molecules of Life

Organic Molecules: Inorganic Molecules: (Do NOT contain ...€¦ · Organic Molecules: Inorganic Molecules: (All contain carbon) (Do NOT contain carbon) 1.) Carbohydrates: Quick source

TOPIC 3.2 MOLECULES OF CELLS. ORGANIC and INORGANIC MOLECULES 3.2.1 ORGANIC MOLECULES: molecules containing C and H in their structure INORGANIC MOLECULES

1 3.1 Organic Molecules Organic molecules contain carbon and hydrogen atoms. Four classes of organic molecules (biomolecules) exist in living organisms:

Synthesis of Complex Organic Molecules: Organic …c 2010 HET618-M07A01: Synthesis of Complex Organic Molecules: Organic Molecules in Space PAGE 3 OF 57 Introduction There is a wide

Biochemistry Organic Molecules. Target #20- I can differentiate between inorganic and organic molecules Inorganic molecules constitutes non- living

Lecture 4 Organic molecules and Inorganic molecules 1. Inorganic molecules. 2. Water 3. Organic molecules Prepared by Mayssa Ghannoum

Organic Molecules. I. Organic Molecules in living things A.Introduction 1.Living things are made of organic molecules 2.Organic – has Carbon as the base,

Organic and Biological Molecules

Organic Molecules “macromolecules, organic compounds”

Organic Nomenclature: Naming Organic Molecules

Organic molecules

Organic Molecules for Physiology

Exp 08: Organic Molecules - Chemchem.ws/dl-1008/exp08_intro.pdfRepresenting Organic Molecules 3 A Practice representing organic molecules. For each of the six formulas provided, draw

Organic macromolecules. Intro to organic molecules Organic molecules by definition contain carbon. Many organic molecules are made of chains, called polymers

ORGANIC MOLECULES BY DAWN THOMPSON Organic molecules

Organic Molecules Carbon is the Main Ingredient in Organic Molecules

THE MOLECULES OF LIFE Organic Molecules ORGANIC MOLECULES FOUR MAIN CATEGORIES : carbohydrates: fuel & building material lipids: fats & oils proteins:

F322 Organic Molecules - Basics

BONDING IN ORGANIC MOLECULES

+ Chapters 2-4 Organic Molecules and Enzymes. + 2 2.3: Chemical Constituents of Cells Organic v. Inorganic Molecules Organic molecules Contain C and H

BIOCHEMISTRY (Ch. 5) Organic molecules Organic molecules Carbon based moleculesCarbon based molecules Inorganic molecules Inorganic molecules Non-carbon

Molecules of Life Organic Molecules Biological Molecules

1 11 Lewis Structures of Organic Molecules Dr. C. Yau Fall 2011

Carbon and Organic Molecules. Organic Molecules Organic molecules — compounds mostly found in living things and containing the element carbon. Ex. Carbohydrates,

Organic molecules in electronics