(Raman   value   R=intensity   (Subscript[I, B])   of   peak   (Subscript[P, B])   near   1,360   (cm^(-1))/intensity   (Subscript[I, A])   of   peak   (Subscript[P, A])   near   1,580   (cm^(-1))   by   Raman   spectrum   analysisEquation   (1H))