NASA Ames PAH IR Spectroscopic Database

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showing PAHs 2801 - 2900

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C₄₂H₂₂

uid	156
id	28219
symmetry	???
scaling factor	multiple (3)

C₄₂H₂₂

uid	137
id	28211
symmetry	₁-A'
scaling factor	multiple (3)

C₄₂H₂₄

uid	3973
id	29464
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₂H₁₆⁺

uid	3167
id	28675
symmetry	₂-B₃U
scaling factor	multiple (3)

C₄₂H₁₈⁺

uid	135
id	23504
symmetry	???
scaling factor	multiple (3)

C₄₂H₁₈⁺

uid	3974
id	29465
symmetry	₂-B₁
scaling factor	multiple (3)

C₄₂H₁₈⁺

uid	106
id	28197
symmetry	₂-B₁
scaling factor	multiple (3)

C₄₂H₂₀⁺

uid	3979
id	29470
symmetry	₂-A"
scaling factor	multiple (3)

C₄₂H₂₀⁺

uid	3978
id	29469
symmetry	₂-A"
scaling factor	multiple (3)

C₄₂H₂₀⁺

uid	3977
id	29468
symmetry	₂-A₂
scaling factor	multiple (3)

C₄₂H₂₂⁺

uid	158
id	23527
symmetry	???
scaling factor	multiple (3)

C₄₂H₂₂⁺

uid	3966
id	29457
symmetry	₂-A"
scaling factor	multiple (3)

C₄₂H₂₂⁺

uid	138
id	28212
symmetry	₂-A"
scaling factor	multiple (3)

C₄₂H₂₄⁺

uid	3971
id	29462
symmetry	₂-A"
scaling factor	multiple (3)

C₄₂H₁₈⁺²

uid	107
id	23476
symmetry	???
scaling factor	multiple (3)

C₄₃H₁₇^-

uid	3237
id	28745
symmetry	₁-A'
scaling factor	multiple (3)

C₄₃H₁₇

uid	3235
id	28743
symmetry	₂-A"
scaling factor	multiple (3)

C₄₃H₁₇⁺

uid	3236
id	28744
symmetry	₁-A'
scaling factor	multiple (3)

C₄₄H₂₀^-

uid	142
id	23511
symmetry	???
scaling factor	multiple (3)

C₄₄H₂₀

uid	140
id	23509
symmetry	???
scaling factor	multiple (3)

C₄₄H₂₀⁺

uid	141
id	23510
symmetry	???
scaling factor	multiple (3)

C₄₅H₁₅^-

uid	724
id	28528
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₅H₁₇^-

uid	3240
id	28748
symmetry	₁-A'
scaling factor	multiple (3)

C₄₅H₁₅

uid	718
id	24074
symmetry	₂-A"
scaling factor	multiple (3)

C₄₅H₁₇

uid	3238
id	28746
symmetry	₂-A"
scaling factor	multiple (3)

C₄₅H₁₅⁺

uid	721
id	28526
symmetry	₃-A₁
scaling factor	multiple (3)

C₄₅H₁₇⁺

uid	3239
id	28747
symmetry	₁-A'
scaling factor	multiple (3)

C₄₆H₁₈^-

uid	3171
id	28679
symmetry	₂-AU
scaling factor	multiple (3)

C₄₆H₁₈

uid	3169
id	28677
symmetry	₁-AG
scaling factor	multiple (3)

C₄₆H₁₈⁺

uid	3170
id	28678
symmetry	₂-BG
scaling factor	multiple (3)

C₄₇H₁₇^-

uid	87
id	23456
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₇

uid	76
id	23445
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	86
id	23455
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	85
id	23454
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	84
id	23453
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	83
id	23452
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	82
id	23451
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	81
id	23450
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	80
id	23449
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	79
id	23448
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₈

uid	78
id	23447
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₇⁺

uid	77
id	28192
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₇H₁₇⁺²

uid	193
id	23562
symmetry	???
scaling factor	multiple (3)

C₄₇H₁₇⁺³

uid	194
id	23563
symmetry	???
scaling factor	multiple (3)

C₄₈H₁₈^-

uid	637
id	23994
symmetry	₂-B₃U
scaling factor	multiple (3)

C₄₈H₁₈^-

uid	3172
id	28680
symmetry	₂-AU
scaling factor	multiple (3)

C₄₈H₂₀^-

uid	104
id	23473
symmetry	???
scaling factor	multiple (3)

C₄₈H₂₀^-

uid	3951
id	29442
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₀^-

uid	148
id	28217
symmetry	₂-B₁
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	145
id	23514
symmetry	???
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3965
id	29456
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3964
id	29455
symmetry	₂-A"
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3963
id	29454
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3962
id	29453
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3961
id	29452
symmetry	₂-A"
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3936
id	29427
symmetry	₂-AU
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3935
id	29426
symmetry	₂-AU
scaling factor	multiple (3)

C₄₈H₂₂^-

uid	3934
id	29425
symmetry	₂-B₁
scaling factor	multiple (3)

C₄₈H₂₄^-

uid	3949
id	29440
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₄^-

uid	3929
id	29420
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₄^-

uid	3928
id	29419
symmetry	₂-A"
scaling factor	multiple (3)

C₄₈H₂₄^-

uid	3927
id	29418
symmetry	₂-B₁
scaling factor	multiple (3)

C₄₈H₂₆^-

uid	3911
id	29402
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₆^-

uid	3910
id	29401
symmetry	₂-A₂
scaling factor	multiple (3)

C₄₈H₁₈

uid	635
id	23992
symmetry	₁-AG
scaling factor	multiple (3)

C₄₈H₁₈

uid	35
id	28164
symmetry	₁-AG
scaling factor	multiple (3)

C₄₈H₂₀

uid	3952
id	29443
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₈H₂₀

uid	146
id	28215
symmetry	???
scaling factor	multiple (3)

C₄₈H₂₀

uid	100
id	28194
symmetry	₁-AG
scaling factor	multiple (3)

C₄₈H₂₂

uid	3944
id	29435
symmetry	₁-AG
scaling factor	multiple (3)

C₄₈H₂₂

uid	3943
id	29434
symmetry	₁-AG
scaling factor	multiple (3)

C₄₈H₂₂

uid	3942
id	29433
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₈H₂₂

uid	3941
id	29432
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₈H₂₂

uid	3940
id	29431
symmetry	₁-A'
scaling factor	multiple (3)

C₄₈H₂₂

uid	3939
id	29430
symmetry	₁-A'
scaling factor	multiple (3)

C₄₈H₂₂

uid	3938
id	29429
symmetry	₁-AG
scaling factor	multiple (3)

C₄₈H₂₂

uid	3937
id	29428
symmetry	₁-A'
scaling factor	multiple (3)

C₄₈H₂₂

uid	143
id	28214
symmetry	???
scaling factor	multiple (3)

C₄₈H₂₄

uid	3933
id	29424
symmetry	₁-A
scaling factor	multiple (3)

C₄₈H₂₄

uid	3932
id	29423
symmetry	₁-A'
scaling factor	multiple (3)

C₄₈H₂₄

uid	3931
id	29422
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₈H₂₄

uid	3930
id	29421
symmetry	₁-A
scaling factor	multiple (3)

C₄₈H₂₆

uid	3913
id	29404
symmetry	₁-A
scaling factor	multiple (3)

C₄₈H₂₆

uid	3912
id	29403
symmetry	₁-A₁
scaling factor	multiple (3)

C₄₈H₁₈⁺

uid	636
id	23993
symmetry	₂-B₂G
scaling factor	multiple (3)

C₄₈H₁₈⁺

uid	36
id	28165
symmetry	₂-B₁G
scaling factor	multiple (3)

C₄₈H₂₀⁺

uid	3950
id	29441
symmetry	₂-B₁
scaling factor	multiple (3)

C₄₈H₂₀⁺

uid	147
id	28216
symmetry	₂-A₂
scaling factor	multiple (3)

C₄₈H₂₀⁺

uid	101
id	28195
symmetry	₂-AU
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	144
id	23513
symmetry	???
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3960
id	29451
symmetry	₂-BG
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3959
id	29450
symmetry	₂-BG
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3958
id	29449
symmetry	₂-A₂
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3957
id	29448
symmetry	₂-A₂
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3956
id	29447
symmetry	₂-A"
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3955
id	29446
symmetry	₂-A"
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3954
id	29445
symmetry	₂-B
scaling factor	multiple (3)

C₄₈H₂₂⁺

uid	3953
id	29444
symmetry	₂-A"
scaling factor	multiple (3)

C₄₈H₂₄⁺

uid	3948
id	29439
symmetry	₂-A
scaling factor	multiple (3)

C₄₈H₂₄⁺

uid	3947
id	29438
symmetry	₂-A"
scaling factor	multiple (3)

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You are kindly asked to consider the following references for citation when using the database:

Ricca, A., Boersma, C., Maragkoudakis, A., Roser, J.E., Shannon, M.J., Allamandola, L.J., Bauschlicher Jr., C.W., "THE NASA AMES PAH IR SPECTROSCOPIC DATABASE: COMPUTATIONAL VERSION 4.00, SOFTWARE TOOLS, WEBSITE, AND DOCUMENTATION", The Astrophysical Journal Supplement Series, 282, 7, 2025 10.3847/1538-4365/ae1c38 — BibTeX - RIS
Mattioda, A.L., Hudgins, D. M., Boersma, C., Ricca, A., Peeters, E., Cami, J., Sánchez de Armas, F., Puerta Saborido, G., Bauschlicher, C.W., J., and Allamandola, L.J. "THE NASA AMES PAH IR SPECTROSCOPIC DATABASE: THE LABORATORY SPECTRA", The Astrophysical Journal Supplement Series, 251, 22, 2020 10.3847/1538-4365/abc2c8 — BibTeX - RIS
Bauschlicher, Jr., C.W., Ricca, A., Boersma, C., Allamandola, L.J., "THE NASA AMES PAH IR SPECTROSCOPIC DATABASE: COMPUTATIONAL VERSION 3.00 WITH UPDATED CONTENT AND THE INTRODUCTION OF MULTIPLE SCALING FACTORS", The Astrophysical Journal Supplement Series, 234, 32, 2018 10.3847/1538-4365/aaa019 — BibTeX - RIS
Boersma, C., Bauschlicher, Jr., C.W., Ricca, A., Mattioda, A.L., Cami, J., Peeters, E., Sánchez de Armas, F., Puerta Saborido, G., Hudgins, D.M., Allamandola, L.J., "THE NASA AMES PAH IR SPECTROSCOPIC DATABASE VERSION 2.00: UPDATED CONTENT, WEBSITE AND ON/OFFLINE TOOLS", The Astrophysical Journal Supplement Series, 211, 8, 2014 10.1088/0067-0049/211/1/8 — BibTeX - RIS

4,233 species present in version 3.20 of the theoretical database (Sep 12, 2019)