Aromatic Benzene PowerPoint Presentations - PPT

Benzene & Aromatic Compounds
Benzene & Aromatic Compounds - presentation


Dr. . Shatha. I . Alaqeel. 108 . Chem. Learning Objectives. By the end of chapter four the students will:. Understand the resonance description of structure of benzene. Understand the hybridization in benzene.

Synthesis of Benzene Derivatives: Electrophilic Aromatic Su
Synthesis of Benzene Derivatives: Electrophilic Aromatic Su - presentation


15-8. Benzene undergoes substitution reactions with electrophiles.. Electrophiles attack benzene by substituting for a hydrogen atom, not addition to the ring.. Under the conditions of this type of reaction, ordinary non-aromatic conjugated polyenes would polymerize rapidly..

BENZENE & its Aromaticity
BENZENE & its Aromaticity - presentation


M.ARULSELVAN. Syllabus. Benzene and Aromaticity. 4.1 Concept of aromaticity:. . . -Huckel's rule for aromaticity, . -identification of aromatic, . -Non-aromatic and anti aromatic systems based on planarity, conjugation and Huckel's rule..

Chapter 17: Benzene and
Chapter 17: Benzene and - presentation


Aromaticity. TNT. 8-methyl-N-vanillyl-6-nonenamide (. Capsaicin). Buckminsterfullerene. Key points & objectives:. Aromatic molecules are cyclic, conjugated, flat, and unusually stable. 4n + 2 electrons (.

Chapter 4: Aromatic Compounds
Chapter 4: Aromatic Compounds - presentation


Bitter almonds are the source of the aromatic compound benzaldehyde. Sources of . Benzene. Benzene. , C. 6. H. 6. , is the . parent hydrocarbon . of the . especially stable . compounds known . as .

12.8  Aromatic Compounds
12.8 Aromatic Compounds - presentation


In 1825, Michael Faraday isolated a hydrocarbon called benzene, which consists of a six-carbon ring with alternating double bonds and the molecular formula C. 6. H. 6. . . Learning Goal . Describe the bonding in benzene; name aromatic compounds, and draw their line-angle structural formulas..

1.3 AROMATIC HYDROCARBONS - presentation


MICHAEL FARADAY (1791-1867). first person to isolate and identify benzene. early benzene uses:. - . decaffeinate . coffee. - antiknock additive . in gasoline. - solvent in chem rxns. now we know benzene is a carcinogen!.

Aromatic compounds
Aromatic compounds - presentation


1435-1436. 2014-2015. Learning Objectives. . Understand the. . resonance description of structure of benzene. Understand the hybridization in benzene. Understand the relation between the stability of benzene and resonance energy.

Aromatic Reactions
Aromatic Reactions - presentation


Most common reactions for aromatics involve replacement of ring . hydrogens. by other atoms or groups . (substitution reactions). Mechanism of Electrophilic Aromatic Substitution Reactions. Electrophile.

Aromatic compounds
Aromatic compounds - presentation


Dr. . Sheppard. CHEM . 2412. Summer 2015. Klein (2. nd. ed. .) . sections. : 18.1, 18.2, 18.8, 18.3, 18.4, 18.5. Aromatic Compounds. Originally distinguished because of smell. Then noticed trends in reactivity.

Aromatic Compounds Chapter 6
Aromatic Compounds Chapter 6 - presentation


240 . Chem. 1. The expressing . aromatic compounds . came to mean . benzene. . and derivatives of benzene. .. . Structure of Benzene: Resonance Description. C. 6. H. 6. It contains a six-membered ring and three additional degrees of unsaturation..

Chapter 4: Aromatic Compounds
Chapter 4: Aromatic Compounds - presentation


Bitter almonds are the source of the aromatic compound benzaldehyde. Sources of Benzene. Some Facts About Benzene. Reacts mainly by substitution. Friedrich August Kekule’. The Orbital Model for Benzene.

By Dr. Mohamed El-
By Dr. Mohamed El- - presentation


Newehy. Chemistry Department, College of Science, King Saud University. Aromatic . Compounds. The Structure of Benzene Ring. - . Benzene. is . the . parent hydrocarbon of .

1 not necessarily stinky
1 not necessarily stinky - presentation


Aromatic compounds. Historical significance. Spices and herbs. Desire to synthesize. Deduced rather simple structure. Common. Benzaldehyde. Benzyl alcohol. T. oluene. Oxidation and further . rxn. yields the parent hydrocarbon.

Arenes and Aromaticity
Arenes and Aromaticity - presentation


(. Benzene. ). 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. All C—C bond distances = 140 pm. Benzene. empirical formula. = CH. 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. . 146 pm. 134 pm.

Ch. 14 -
Ch. 14 - - presentation


1. Chapter 14. Aromatic Compounds. Ch. 14 - . 2. About The Authors. . These PowerPoint Lecture Slides were created and prepared by Professor William Tam and his wife, Dr. Phillis Chang. . . Professor William Tam received his B.Sc. at the University of Hong Kong in 1990 and his Ph.D. at the University of Toronto (Canada) in 1995. He was an NSERC postdoctoral fellow at the Imperial College (UK) and at Harvard University (USA). He joined the Department of Chemistry at the University of Guelph (Ontario, Canada) in 1998 and is currently a Full Professor and Associate Chair in the department. Professor Tam has received several awards in research and teaching, and according to .

Unsaturated hydrocarbons
Unsaturated hydrocarbons - presentation


Orbitals. Natural gas?. Fig. 11.1. Aliphatic Hydrocarbon Structure Comparison. Bonding and Geometry. of Two-Carbon Molecules . 11.1 Structure and Physical. . Properties.

1 1 Reactions of Arenes
1 1 Reactions of Arenes - presentation


Reactions of Arenes. Reactions involving the ring. A. Reduction. a. Catalytic hydrogenation (Chapter 11.4). b. Birch reduction (Chapter 11.11). B. . Electrophilic. aromatic substitution (Chapter 12).

Aromatic chemistry
Aromatic chemistry - presentation


Leon. María. Elena. Larissa. Vanillin. Information. History of benzene. Ring structure. Functional groups. Hückel’s. rule. Vanillin. History of benzene. The . empirical formula for benzene had been long known, but its highly unsaturated structure was a challenge to determine. .

Aromatic Compounds
Aromatic Compounds - pdf


Aromatic CompoundsEssential feature: benzene-like ringscapsaicinHOCH3ONHO An example: CCCCCC CCCCCC Polycyclic Aromatic Compounds Polycyclic Aromatic Compounds naphthaleneanthracenephenanthrenepyreneb

Spectral Characteristics of the Benzene Ring
Spectral Characteristics of the Benzene Ring - presentation


15-4. The UV-visible spectrum of benzene reveals its electronic structure.. The energy gap between bonding and antibonding orbitals is greater in benzene than for acyclic trienes.. The UV spectra of benzene shows absorbances at smaller wavelengths (higher energy) than does the spectra of 1,3,5-hexatriene:.

Polycyclic Aromatic Hydrocarbons
Polycyclic Aromatic Hydrocarbons - presentation


15-5. Molecules containing several fused benzene rings are called . polycyclic benzenoid. or . polycyclic aromatic hydrocarbons. (. PAHs. ).. Common names are used for these systems, since there is no simple naming system for them..

Chapter 18 Reactions of Aromatic molecules
Chapter 18 Reactions of Aromatic molecules - presentation


Benzene is aromatic: a cyclic conjugated compound with 6 . . electrons. Reactions of benzene lead to the retention of the aromatic core. Types of Reactions. Electrophilic. substitution. Diazonium.

Ch16 Aromatic Compounds (landscape).docx
Ch16 Aromatic Compounds (landscape).docx - pdf


page 1 Aromatic Compounds Historically, benzene and its first derivatives had pleasant aromas, and were called aromatic compounds. Structure of Benzene Kekul

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