For example, compare isobutane (2-methylpropane) and n-butane (butane), which boil at −12 and 0 °C, and 2,2-dimethylbutane and 2,3-dimethylbutane which boil at 50 and 58 °C, respectively.
fɔːɹ ɛɡzˈæmpəl, kəmpˈɛɹ ˈaɪsəbjˌuːteɪn tˈuːmˌɛθəlpɹˈoʊpeɪn ænd ˈɛnbjˈuːteɪn bjˈuːteɪn, wˌɪtʃ bˈɔɪl æt mˈaɪnəs twˈɛlv ænd zˈiəɹoʊ dᵻɡɹˈiːz sˈiː, ænd tˈuː,tˈuːdˈaɪmθɪlbjˌuːteɪn ænd tˈuː,θɹˈiːdˈaɪmθɪlbjˌuːteɪn wˌɪtʃ bˈɔɪl æt fˈɪfti ænd fˈɪfti ˈeɪt dᵻɡɹˈiːz sˈiː, ɹᵻspˈɛktɪvli.