Vibrational spectra of NCCN, CNCN and CNNC : a study using the U(4) algebraic model

A detailed study on the vibrational spectra of cyanogen(NCCN) and its isomers – isocyanogen(CNCN) and di-isocyanogen(CNNC) has been reported in this work using the U(4) algebraic model. With detailed spectral analysis, it has been shown in this study that NCCN, CNCN, CNNC and all their isotopic species can be approximated well using the U(4) algebraic model.