Journal of Spectroscopy

Research Article

Vibrational Spectral Studies of Pure and Doped TGSP Crystals

FT-RAMAN analysis.


Pure TGSP	TGSP + ADP	TGSP + KDP	Assignment

74 m 103 m	74 m–340 m (4 lines)	73 m–234 m (5 lines)	Lattice-mode vibration of glycine
—	466 m	451 m	Lattice-mode vibration of SO₄, δ(C–N) out of plane, ν(PO₄)
—	506 w–590 w (3 lines)	506 w 590 w	τ(C–N), ν(PO₄), δ(C–CO), ν()
632 w 633 w	614 w	628 w	ν(SO₄), δ(C–N) in plane, oscillation
—	678 m	677 m	ν(C–C)
869 m	871 m	—	ν(C–C)
889 w	890 w	890 w	ρ(CH₂), ρ(NH₃), ν(C–C), ν(P–O–H)
978 s	978 s	978 s	ν(C–C–N), ν()
1051 w	1042 w	1045 w	ω(CH₂), δ(C–C), ν(C–N), ν(C–N–H), ν(P–O–H)
1114 w 1122 w	1123 w 1128 w	1124 w 1157 w	ρ(CH₂), ν(C–C), ν(SO₄)
1304 w 1314 w	1306 w	1309 w	δ(C–H), ν(C–C)
1414 w	1416 w	1413 w	ν _s(COO⁻), δ(CH₂)
1439	1441 1496	1443	ν(NH₄), δ(CH₂)
1605	1607	1606	ν(COO⁻), ν(NH₄), ν(P–O–H), ν(C=C)
1683 w	1678	1683 1762	ν(C=O), ν(O–H–O)
2648	—	—	δ(H₂O), ν(COOH)
2982	2958 2980	2958 2982	ν(C–H)
3014 w 3057 w	3019 w 3140 w	3017 w 3143 w	ν(NH₄)

:symmetric stretching, : asymmetric stretching, δ: bending, ρ: rocking, ω: wagging, and τ: torsional vibrations.