Abstract

Infrared spectra of benzylidene aniline, <i>p</i>-nitrobenzylidene aniline, <i>p</i>-N-dimethylaminobenzylidene aniline, and their ¹⁵N-labelled azomethine analogs were obtained to assess the reliability of C=N stretching assignments and Hammett relationships based on these results. The isotopic data indicate that there is extensive mixing of internal coordinates in bands near 1600 cm⁻¹. Bands possessing the greatest C=N stretching character are not always readily distinguishable from aromatic ring breathing modes due to variations in relative intensities and band overlap. Problems related to the use of frequency and intensity data of highly coupled normal modes in Hammett correlations are discussed.

Method to derive the infrared complex refractive indices n(λ) and k(λ) for organic solids from KBr pellet absorption measurements

Kelly A. Peterson, Ryan M. Francis, Catherine A. Banach, Ashley M. Bradley, Sarah D. Burton, Jeremy D. Erickson, Schuyler P. Lockwood, Karissa L. Jensen, Michael O. Yokosuk, Timothy J. Johnson, and Tanya L. Myers
Appl. Opt. 63(6) 1553-1565 (2024)

Near ground horizontal high resolution Cn2 profiling from Shack–Hartmann slopeand scintillation data

C. Sauvage, C. Robert, L. M. Mugnier, J.-M. Conan, J.-M. Cohard, K.-L. Nguyen, M. Irvine, and J.-P. Lagouarde
Appl. Opt. 60(34) 10499-10519 (2021)

An Aromatic Detector for the Infrared*

B. D. McMichael, E. A. Kmetko, and S. Mrozowski
J. Opt. Soc. Am. 44(1) 26-30 (1954)

Infrared continuum water vapor absorption coefficients derived from satellite data

Ian J. Barton
Appl. Opt. 30(21) 2929-2934 (1991)

Turbulence strength C n2 estimation from video using physics-based deep learning

Ripon Kumar Saha, Esen Salcin, Jihoo Kim, Joseph Smith, and Suren Jayasuriya
Opt. Express 30(22) 40854-40870 (2022)