Table 1.

Comparison of the title compound's observed and calculated vibrational spectra.

Experimental IR (cm−1)	Calculated(cm−1) B3LYP/6-31G(d, p)	Assignment
3253	3526	ν (N—H)
2844–2999	3225–3039	ν(C—H) arom; ν(C—H) aliph
1650∼1543	1561–1659	ν(C C), ν (C N) /aromatiques
1381	1309	ν (—P—CH2)
1215	1211	ν (P O)
1039	1056	ν (C—N) aliphatiques
959	968	ν(C—C)aliphatiques
764	768	ν(P—O)
697	744	ν (P—O—C)