Mode FT-RS SERS Au colloid
[cm−1 ]FWHM [cm−1 ]
[cm−1 ]FWHM [cm−1 ]
-Pyrγ (CO) + ρ (CP=O) + ρ as (Phe) + δ oop (CC(P)C)528 6 530 17 γ (CO) + ρ as (Phe) 548 7 552 14 ν
6a (Pyr) and/or ν 6b (Phe)616 7 617 6 ρ
as (Pyr) + δ (Cpyr CO) + δ (Cpyr CP)651 7 — — ν
11 (ρ as (Pyr)) and/or ν 6a (Phe; δ oop (CC(H)C))689 6 695 17 ν
10b (ρ t (Pyr)) and/or ρ as (Phe) + ν (PCphe )728 3 — — ν
10a (Phe; γ (CH))841 9 — — ν
1 (Pyr; δ oop (CC(H)C) + ν (CN) + δ trig (Pyr))992 7 — — ν
12 (Phe)998 5 999 9 ν
18a (Phe)1028 7 1028 9 ν
12 (Pyr)1046 11 — — ρ
r (CC(H)C)pyr + ν (CC)pyr + ν (CO) + ν (PCphe )1103 9 1102 11 ν (P=O) and/or δ (CH)1164 6 1159 7 ν
9a (Phe; δ (CH)) and/or ν sym (Cβ Cγ H2 Cδ )1185 6 1183 18 ν
9a (Pyr) and/or ν 7a (Phe; phenyl-C stretch)1215 7 — — ν
19b (Pyr/Phe)1433 8 1435 8 ν
8b (Pyr/Phe)1570 10 — — ν
8a (Pyr/Phe)1588 10 1585 9
-Pyrγ (CO) + ρ (CP=O) + ρ as (Phe) + δ oop (CC(P)C)534 10 533 17 γ (CO) + ρ as (Phe) 554 7 546 14 ν
6a (Pyr) and/or ν 6b (Phe)616 6 616 6 ρ
as (Pyr) + δ (Cpyr CO) + δ (Cpyr CP)654 7 — — ν
11 (ρ as (Pyr)) and/or ν 6a (Phe; δ oop (CC(H)C))698 8 695 11 ν
10b (ρ t (Pyr)) and/or ρ as (Phe) + ν (PCphe )733 6 — — γ
as (Pyr) + δ oop (CC(H)C)phe + δ oop (CCphe (P)C)757 7 — — ν
10a (Phe; γ (CH))853 12 — — ν
12 (Phe)1001 6 997 9 ν
18a (Phe)1032 8 1026 9 ν
12 (Pyr)1041 7 — — ρ
r (CC(H)C)pyr + ν (CC)pyr + ν (CO) + ν (PCphe )1103 9 1102 10 ν (P=O) and/or δ (C–H)1162 14 1157 9 ν
9a (Phe; δ (CH)) and/or ν sym (Cβ Cγ H2 Cδ )1189 19 1183 17 ν
9a (Pyr) and/or ν 7a (Phe; phenyl-C stretch)1220 20 — — ν
19b (Pyr/Phe)1434 8 1433 8 ν
8b (Pyr/Phe)1573 8 — — ν
8a (Pyr/Phe)1589 8 1584 14
-Pyrγ (CO) + ρ (CP=O) + ρ as (Phe) + δ oop (CC(P)C)528 4 531 14 γ (CO) + ρ as (Phe) 551 9 550 14 ν
6a (Pyr) and/or ν 6b (Phe)615 5 616 5 ρ
as (Pyr) + δ (Cpyr CO) + δ (Cpyr CP)662 5 662 5 ν
11 (ρ as (Pyr)) and/or ν 6a (Phe; δ oop (CC(H)C))697 9 697 8 ν
10b (ρ t (Pyr)) and/or ρ as (Phe) + ν (PCphe )725 9 — — γ
as (Pyr) + δ oop (CC(H)C)phe + δ oop (CCphe (P)C)759 5 — — ν
10a (Phe; γ (CH))860 11 — — ν
1 (Pyr; δ oop (CC(H)C) + ν (CN) + δ trig (Pyr))991 6 — — ν
12 (Phe)1001 6 998 9 ν
18a (Phe)1029 9 1026 10 ρ
r (CC(H)C)pyr + ν (CC)pyr + ν (CO) + ν (PCphe )1103 8 1102 11 ν (P=O) and/or δ (C–H)1164 15 1158 16 ν
9a (Phe; δ (CH)) and/or ν sym (Cβ Cγ H2 Cδ )1199 12 1196 — ν
9a (Pyr) and/or ν 7a (Phe; phenyl-C stretch)1222 13 — — ν
19b (Pyr/Phe)1436 5 1435 9 ν
8b (Pyr/Phe)1573 8 1585 10 ν
8a (Pyr/Phe)1592 11 1608 15