Raman and Luminescent Spectra of Sulfonated Zn Phthalocyanine Enhanced by Gold Nanoparticles

Table 3 Assignment of the Raman spectral bands with molecular vibrations in the ZnPC_Sulf

ZnPC_Sulf, cm⁻¹	ZnPC_Sulfwith Au-SiO₂, cm⁻¹	Assignment	Reference	I_{ZnPCSulf with Au-SiO2} /I_ZnPCSulf
146	145	Zn-N, pyrrole out-of-plane, N_a-C_a-N_b	[32]	20
–	260	radial Au-S stretching modes	[33]	–
–	275	Au-S vibration	[33]	–
–	289	Au-S vibration	[33]	–
504	500	Macrocycle bending of pyrrole	[31]	25
594	594	Out-of-plane C-H, C-N-C, deformations of the isoindole ring	[32]	30
654	654	C-C-C benzene, C-S	[31]	36
720	707	C_a, N_a, out-of-plane, C-S	[31]	40
747	746	C_a-N-C_a, C-C-N, Zn-N_a, antisymmetric deformation of the macrocycle	[32]	42
952	950	C-H out-of-plane, C-C-C pyrrole, and vibrations of benzene groups	[34]	50
1149	1136	C_a-C_б, C-H benzene, C_б-C_б, stretching vibrations of pyrrole groups	[34]	65
1272	1262	C_a-N, N-C_a-N_a, C_a-N-C_a	[31]	60
1337	1313	H-C_a-C_b, C_a = N_b, C_a-C_b,	[32]	56
1432	1427	C_a = C_b	[32]	51
1521	1518	C_a = C_b, C_a = N_b, and stretching vibration in the pyrrole group are totally symmetric vibration	[31]	32