Entrar

Capítulo 3

Alcanos e Cicloancanos

Estrutura de Alcanos
Estrutura de Alcanos
The formation of carbon-carbon bonds leading to the creation of the carbon chain is the basis of organic chemistry. August Kekulé and Archibald Scott ...
Isômeros Constitucionais de Alcanos
Isômeros Constitucionais de Alcanos
Organic compounds of the same molecular formula can have different structural formulas called constitutional isomers, and the phenomenon is known as ...
Nomenclatura de Alcanos
Nomenclatura de Alcanos
In the late 19th-century, the number of new chemical compounds discovered increased tremendously. Hence, the necessity arose to develop a naming system ...
Propriedades Físicas de Alcanos
Propriedades Físicas de Alcanos
Alkanes are nonpolar molecules due to the presence of only carbon and hydrogen atoms. The electronegativity difference between carbon and hydrogen is ...
Projeções de Newman
Projeções de Newman
Different notations are used to represent the three-dimensional structure of molecules on two-dimensional surfaces. One of the most commonly used ...
Conformações do Etano e Propano
Conformações do Etano e Propano
In an organic molecule, free rotation about the carbon-carbon single bond results in energetically different conformers of the molecule. Due to this ...
Conformações do Butano
Conformações do Butano
Unlike ethane and propane that have only two major conformations, butane has more than two conformers. The staggered form of butane in which the bulky ...
Cicloalcanos
Cicloalcanos
Cycloalkanes are saturated cyclic hydrocarbons with carbon atoms arranged in the form of rings. They have two fewer hydrogen atoms than the corresponding ...
Conformações de Cicloalcanos
Conformações de Cicloalcanos
Adolf von Baeyer attempted to explain the instabilities of small and large cycloalkane rings using the concept of angle strain — the strain caused ...
Conformações do Ciclohexano
Conformações do Ciclohexano
Cyclohexane does not exist in a planar form due to the high angle and torsional strain it would experience in the planar structure. Instead, it adopts ...
Conformação Cadeira do Ciclohexano
Conformação Cadeira do Ciclohexano
The chair conformation is the most stable form of cyclohexane due to the absence of angle and torsional strain. The absence of angle strain is a result of ...
Estabilidade de Ciclohexanos Substituídos
Estabilidade de Ciclohexanos Substituídos
This lesson discusses the stability of substituted cyclohexanes with a focus on energies of various conformers and the effect of 1,3-diaxial ...
Ciclohexanos Dissubstituídos: Isomeria <em>cis-trans</em>
Ciclohexanos Dissubstituídos: Isomeria cis-trans
Depending upon the different spatial orientation of the substituents, the disubstituted cycloalkanes exhibit two types of stereoisomers. The cis isomers ...
Energia de Combustão: Uma Medida de Estabilidade em Alcanos e Cicloalcanos
Energia de Combustão: Uma Medida de Estabilidade em Alcanos e Cicloalcanos
The low reactivity in alkanes can be attributed to the non-polar nature of C–C and C–H σ bonds. Alkanes, therefore, were  initially ...
JoVE Logo

Privacidade

Termos de uso

Políticas

Pesquisa

Educação

SOBRE A JoVE

Copyright © 2025 MyJoVE Corporation. Todos os direitos reservados