14 – Aromatic Hydrocarbons

Slides:

Advertisements

Similar presentations

One Upon a Time Organic compounds – compounds obtained from living organisms Inorganic compounds – compounds obtained from non living things.

Advertisements

1 Chapter 13 Unsaturated Hydrocarbons 13.6 Aromatic Compounds.

1 Chapter 13 Unsaturated Hydrocarbons 13.7 Properties of Aromatic Compounds.

Organic Chemistry HCC H C C C CC C H H H H H H H O H H H H H C C C H H H H C C C H H H H H H H H.

The structure of benzene The electron config of carbon.

Organic Chemistry Larry Scheffler Lincoln High School 1 Revised September 12, 2010.

L. Scheffler IB Chemistry 3-4. Lincoln H.S.

Organic and biochemistry Assitance Lecturer Amjad Ahmed Jumaa  Aromatic hydrocarbon  Benzene 1.

Arenes Textbook p4-5.

CHAPTER 23 ORGANIC CHEMISTRY. The Nature of Organic Molecules Carbon is tetravalent. It has four outer-shell electrons (1s 2 2s 2 2p 2 ) and forms four.

Department of Chemistry CHEM1020 General Chemistry *********************************************** Instructor: Dr. Hong Zhang Foster Hall, Room 221 Tel:

Benzene The aromatics. Benzene  Benzene and its derivatives are part of a special group called aromatics.  When it is a substituent group it is called.

Organic Chemistry Alkanes, Alkenes, Alkynes & Benzene CARBAN COMPOUNDS.

Arenes: Benzene Arenes are aromatic hydrocarbons containing 1 or more benzene rings. A benzene ring is a ring of 6 carbon atoms, each of which is also.

Organic Chemistry. Introduction Organic chemistry is the study of carbon and its compounds. The major sources of carbon are the fossil fuels petroleum,

Organic Chemistry HCC H C C C CC C H H H H H H H O H H H H H C C C H H H H C C C H H H H H H H H.

The structure of benzene. All the chemistry they knew suggested that any substance with a double or triple bond would be very reactive and react readily.

Aromatic Hydrocarbons C6H6C6H6 Aromatic compounds contain a benzene ring(C 6 H 6 ) It is a very stable structure that is very hard to break. The most.

Aromatic hydrocarbons are unusually stable compounds with ring structures in which electrons are shared by many atoms. Section 5: Aromatic Hydrocarbons.

Agenda Today Quiz on Naming and Drawing Aliphatic Compounds Lesson on Naming and Structure of: – Aromatic Compounds Practice Problems.

CONCURRENT ENROLLMENT

Alkanes and Aromatic Hydrocarbons

Aromatic Compounds and Benzene

Organic Chemistry C H H C C H C H H O C.

The Plan Isomers -cis & trans Review aromatics.

Chapter 1.3 Aromatic Hydrocarbons

Chemistry Department, College of Science, King Saud University

12.8 Aromatic Compounds In 1825, Michael Faraday isolated a hydrocarbon called benzene, which consists of a six-carbon ring with alternating double bonds.

Chemistry 22.4.

Lecture 9 Monday 2/6/17.

Aromatic hydrocarbons

Aromatic hydrocarbons

Alkenes and Alkynes.

Aromatic compounds.

1.3 AROMATIC HYDROCARBONS

Chapter 14 Aromatic Compounds

The structure of Benzene

Organic Chemistry Mrs. Rose Marie Capanema Mansur.

The following slides should help you with your revision, but should not be your only form of revision. Remember to use your notes, a textbook, websites.

Chapter 9: Benzene and its Derivatives

Aromatic Hydrocarbons

9.4 Aromatics The compounds we have been studying so far are all known as aliphatic hydrocarbons. A particular group of cyclic compounds are called arenes.

5.5 Aromatic Hydrocarbons

Benzene & Aromatic Compounds

Leaving Certificate Chemistry

Chapter 14 Aromatic Compounds

Aromatic Compounds.

Benzene Formula C6H6 unsaturated

Fundamentals of Organic Chemistry

Benzene and Aromatic Compounds

Organic Chemistry Aromatics (Arenes) C H.

Fundamentals of Organic Chemistry

Aromatic Compounds.

Fundamentals of Organic Chemistry

Fundamentals of Organic Chemistry

Planar Organic Families

There are two major classes of organic chemicals aliphatic : straight or branched chain organic substances aromatic or arene: includes one or more ring.

Fundamentals of Organic Chemistry

Aromatic compounds.

15th June 2012 Alkenes AIM – to investigate the physical and chemical properties of alkenes.

Fundamentals of Organic Chemistry

Fundamentals of Organic Chemistry

Structure of aliphatic hydrocarbons

5.3.1 Benzene C6H6.

Presentation transcript:

14 – Aromatic Hydrocarbons Organic Chemistry 14 – Aromatic Hydrocarbons Leaving Certificate Chemistry

An aromatic compound is a compound containing a benzene ring Originally such compounds were called ‘aromatic’ as they had nice smells Benzene: C6H6

Derived from whale oil – 1825 – Michael Faraday Benzene: C6H6 Derived from whale oil – 1825 – Michael Faraday

By 1834: Molecular formula known to be C6H6 Benzene: C6H6 By 1834: Molecular formula known to be C6H6 Chemical formula suggests a highly unsaturated compound But Benzene does not decolourise bromine water OR acidified potassium permanganate Benzene undergoes substitution reactions rather than addition. Confusion

H H C C H H H H C C C C C C C C H H H H C C H H Benzene: C6H6 What is the chemical structure of benzene? H H C C H H H H C C C C C C C C H H H H C C H H

1 picometre is one trillionth of a metre Benzene: C6H6 Bond Lengths C C 154 picometres C C 134 picometres But all of the bond lengths in Benzene are of the same length of 140 picometres One very big problem 1 picometre is one trillionth of a metre

Benzene: C6H6 H C H H C C C C H H C H Benzene: C6H6 He suggested that six electrons revolve around the entire six carbon atoms and this explains why all carbon-carbon bond lengths are equal 2007 Q. 4(i) (6) C H H C C C C H H C Structure revealed by Kekule in 1865 Benzene: C6H6 H

Methylbenzene CH3 Methylbenzene is preferable for use over benzene in a laboratory as benzene is carcinogenic 2006 Q. 4 (d) (6) Used as an industrial solvent Also called toluene Methylbenzene: C7H8

Ethylbenzene C2H5 2005 Q. 4(g) (6) Ethylbenzene: C8H10

Physical properties of benzene? Physical state: Benzene, Methylbenzene and ethylbenzene are liquid at room temperature Insoluble in water Soluble in non-polar solvents such as cyclohexane