Table 4 Chemical assignment of Raman characteristic wavenumbers

788/800/1046/1073/1114/1222/1553

Chlorophyll a

[51]

971

β-carotene [τ(C₁₁-C₁₂)]

[52]

988

Chlorophyll

[53]

1026

β-carotene [ρ(9Me), ν(C₈ − C₉)]

[52]

1068/1155/1165/1265/1392/1530/1555

Chlorophyll a

[54]

1128/1160/1210/1380/1465/1523/1567/1644

Chlorophyll b

[54]

1133

β-carotene

[55]

1137

β-carotene [ν(C₁₀ − C₁₁)]

[52]

1144

Chlorophyll [ν(CN), δ(CNC)]

[53]

1145

Chlorophyll a [ν(C_aN), δ(C_aNC_a)]

[52]

1149

β-carotene [14 − 15, 15H, 15 = 15 ‘]

[55]

1157

β-carotene [ν(C₁₄ − C₁₅), δ(C₁₅ − H)]

[52]

1172

β-carotene [5 − 4, 18r, 6 − 7]

[55]

1186

Chlorophyll a [ν(C_mC₁₀), δ (C_bH)]

[52]

1187

β-carotene [10H, 11H, 8 − 9]

[55]

1191

β-carotene [δ(C₁₀ − H), δ(C₁₁ − H)]

[52]

1216

β-carotene [ν(C₁₂ − C₁₃), δ(C₁₄ − H)]

[52]

1225

Chlorophyll [δ(CH), δ(CH₂)]

[53]

1226

β-carotene [12 − 13, 14H, 15 = 15 ‘]

[54]

1281

β-carotene [15H, 14H, CCC15b]

[55]

1310

β-carotene [12H, 11 = 12, 15 = 15 ‘]

[55]

1322

β-carotene [δ(C₁₂ − H), ν(C₁₁-C₁₂)]

[52]

1347

β-carotene [12H, 11 = 12, 15 = 15 ‘]

[55]

1450

β-carotene [δas(9Me), δas(13Me)]

[52]

1485

β-carotene [13 = 14, 11 = 12, 12H]

[55]

1518

Lutein [C=C stretching vibration]

[56]

1524

Chlorophyll a [ν(C_bC_b), ν(C_aC_b)]

[52]

1528

Carotenoids [ν1(C=C)]

[52]

1542

Chlorophyll a [ν(C_bC_b)]

[52]

1552

Chlorophyll a [ν(C_aC_b), ν(C_bC_b)]

[52]

1562

β-carotene [11 = 12, 15H, 12H]

[55]