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A series of CaOnY4-n molecules have been studied by means of MNDO method. From the results of calcuation it can be seen that the bond orders of C-C bond linked with one or more oxygen atoms are reduced while the bond lengths are increased. The main thange of C-C bond orders comes from σ-bond.
A series of CaOnY4-n molecules have been studied by means of MNDO method. From the results of calcuation it can be seen that the bond bonds of CC or one more oxygen atoms are reduced while the bond lengths are increased. The main thange of CC bond orders comes from σ-bond.