In database:
185-430 nm
Dinitrogen tetraoxide (N2O4)
Molecular weight
Freezing point
Boiling point

UV cross-sections
Please see The MPI-Mainz UV/VIS Spectral Atlas

Additional References
Striking Anharmonic Resonances in N2O4: Supersonic Jet Fourier Transform Spectra at 13.3, 7.9, 5.7, and 3.2 mm; M. Hepp, R. Georges, M. Herman, J.-M. Flaud, and W.J. Lafferty; J.Mol.Struct. 517:171-180 (2000).
Figure 2 showing 1253-1270 cm-1.
Figure 4 showing 742-760 cm-1.
Figure 6 showing 3118-3132 cm-1.

Notes n2o4
Fundamental frequencies from NIST Chemistry Webbook
n1 1383 cm-1 (ag)
n2 813 cm-1 (ag)
n3 262 cm-1 (ag)
n4 82 cm-1 (au)
n5 1718 cm-1 (b1g)
n6 480 cm-1 (b1g)
n7 425 cm-1 (b1u)
n8 657 cm-1 (b2g)
n9 1757 cm-1 (b2u)
n10 265 cm-1 (b2u)
n11 1261 cm-1 (b3u)
n12 755 cm-1 (b3u)

List of available data for all molecules in database
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