4.1.1 Basic concepts of organic chemistry Flashcards
what is the definition of a homologous series?
a series of organic compounds having the same functional group but with each successive member differing by CH2
what is the definition of a functional group?
a group of atoms responsible for the characteristic reactions of the compound
what is the formula for an alkyl group?
Cn H2n+1
what is an aliphatic hydrocarbon?
a compound containing carbon and hydrogen joined together in straight chains, branched chains or non-aromatic rings
what is an alicyclic hydrocarbon?
an aliphatic compound arranged in non-aromatic rings with or without side chains
what is an aromatic?
a compound containing a benzene ring
what is a general formula?
the simplest algebraic formula of a member of a homologous series
what is a structural formula?
the minimal detail that shows the arrangement of atoms in a molecule
what is a displayed formula?
the relative positioning of atoms and the bonds between them
what is a skeletal formula?
the simplified organic formula, shown by removing hydrogen atoms from alkyl chains, leaving just a carbon skeleton and associated functional group
what is a σ-bond?
overlap of orbitals directly between the bonding atoms
what is a π bond?
sideways overlap of adjacent p-orbitals above and below the bonding C atoms
what are structural isomers?
compounds with the same molecular formula but different structural formula
what is homolytic fission?
each bonding atom receives one electron from the bonding pair, forming 2 radicals
what is heterolytic fission?
one bonding atom receiving both electrons from the bonded pair