formula alkene formula The total number of π-bonds and rings in the structure of a compound is called the degree of unsaturation of the compound (sometimes called the index of hydrogen deficiency). Every π-bond and every ring in a compound’s structure results in one degree of ...
Molecular Formula and Degree of Unsaturation. Nature - DA - 1963 () Citation Context ...ntly, the rings-plusdouble-bonds equivalent (RDBE) or double-bond equivalent (DBE) concept was introduced in the 1950's [28,29], and shortly later, the term of "degree of unsaturation" was ...