branched alkanes: lowers the boiling points. cycloalkanes: the boiling points higher Alkanes and Cycloalkenes: Conformations of Molecules Melting points unbranched alkanes: the even- and odd-numbered alkanes are plotted on separate curves, there is a ...
Alkanes:C n H 2n+2 (saturated) Cycloalkanes:C n H 2n (containingasinglering) ContainCandHonly ContainsinglebondsC-C Have4bondstoeverycarbon(C)atom Arenonpolar Homologousseries 4.2ShapesofAlkanes Thecarbonchainsarezigzagged unbranchedalkanes ...
Alkanes:C n H 2n+2 (saturated) Cycloalkanes:C n H 2n (containingasinglering) ContainCandHonly ContainsinglebondsC-C Have4bondstoeverycarbon(C)atom Arenonpolar Homologousseries 4.2ShapesofAlkanes Thecarbonchainsarezigzagged⇒ unbranchedalkanes Branched-chainalkanes:⇒Isomers Pentane CH 3 CH 2 CH...
have more s character. • Pi overlap brings carbon atoms closer. • Bond angle with pi orbitals increases. – Angle C=C-H is 121.7 – Angle H-C-H is 116. 6 Pi Bond • Sideways overlap of parallel p orbitals. • No rotation is possible without breaking the pi bond (63 kcal/...