ORGANIC CHEMISTRY Chapter l 1.3 A somers(异构体): The importance of Structural formulas ● Isomerism(异构现象) o Isomers: different compounds that have the same molecular formula Isomeric(同分异构) g Structural formulas(结构式) ● Constitutional isomers(构造异构体): different compounds that have the same molecular formula but differ in their connectivity, that is, in the sequence in which their atoms are bonded together Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 1 1.3A Isomers（异构体）: The importance of Structural Formulas Isomerism（异构现象） Isomers: different compounds that have the same molecular formula. Isomeric（同分异构） Structural formulas（结构式） Constitutional isomers（构造异构体）: different compounds that have the same molecular formula, but differ in their connectivity, that is, in the sequence in which their atoms are bonded together