NIST/EPA Gas-Phase Infrared Database Select a region with data to zoom. Ser., , 1973, 51-63. umn class: Standard polar; Column length: 3 m; Column type: Packed; Start T: 179 C; CAS no: 62533; Active phase: PEG-2000; Carrier gas: He; Substrate: Celite 545 (44-60 mesh); Data type: Kovats RI; Authors: Anderson, A.; Jurel, S.; Shymanska, M.; Golender, L., Gas-liquid chromatography of some aliphatic and heterocyclic mono- and pollyfunctional amines. Instead, look for tell-tale bands — the region from 4000-1300 cm-1 is particularly useful for determining the presence of specific functional groups. PSR Zinat. CopyCopied, InChI=1S/C6H7N/c7-6-4-2-1-3-5-6/h1-5H,7H2 Terms Retention indices of amines in some polar and unpolar stationary phases, Latv. The molecular structure of aniline is also known in the gas phase from microwave spectroscopy17,18 and in the solid state from X-ray crystallography19. HTML 5 canvas support. Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director. Go To: Top, Infrared Spectrum, References. The Products Volatile at Pyrolysis Temperature, Liquid or Gaseous at Room Temperature, J. Appl. Comparison of the spectra with available gas phase data reveals that the helium environment induces no significant matrix shift nor leads to an observable line broadening of the resonances. Sci., 23, 1979, 2837-2854. umn class: Standard polar; Column type: Packed; Start T: 165 C; CAS no: 62533; Active phase: Carbowax 20M; Substrate: Chromosorb W, AW-DMCS; Data type: Kovats RI; Authors: Ellis, T.S. ; Su, Q.-D., Gas chromatographic-mass spectrometric determination of polycyclic aromatic hydrocarbons formed during the pyrolysis of phenylalanine, J. Chromatogr. The C–N stretch appears at 1281 rather than at lower wavenumbers because aniline is an aromatic compound. The infrared spectrum of aniline is shown beneath the following table. Soc., 38(2), 1994, 108-120. umn class: Standard non-polar; Column diameter: 0.20 mm; Column length: 25 m; Column type: Capillary; Start T: 60 C; CAS no: 62533; Active phase: HP-1; Carrier gas: N2; Data type: Kovats RI; Authors: Zhang, M.J.; Li, S.D. Notice: Concentration information is not Diethylamine also shows an N–H wag (733). Tertiary amines (R3N) do not show any band in this region since they do not have an N–H bond. A, 1025, 2004, 255-261. ass: Semi-standard non-polar; Column diameter: 0.26 mm; Column length: 30 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 300 C; End time: 20 min; Start time: 4 min; CAS no: 62533; Active phase: DB-5; Carrier gas: He; Phase thickness: 0.25 um; Data type: Lee RI; Authors: Rostad, C.E. Change ), You are commenting using your Facebook account. Alcohols and amines are fairly easy to identify in the IR spectrum, based on their relative locations and shapes. Notice: This spectrum may be better viewed with a Javascript A, 1216, 2009, 1630-1639. umn class: Standard non-polar; Column type: Capillary; Start T: 80 C; CAS no: 62533; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Lebron-Aguilar, R.; Quintanilla-Lopez, J.E. Change ), You are commenting using your Google account. a) On the IR spectrum, assign the various absorptions to the functional groups responsible for them. Chromatogr. Vacuum pyrolysis of poly(p-N,N-dimethylaminostyrene); the products volatile at pyrolysis temperature, liquid or gaseous at room temperature, J. Appl. In primary amines (RNH2), there are two bands in this region, the asymmetrical N–H stretch and the symmetrical N–H stretch. Secondary amines (R2NH) show only a single weak band in the 3300-3000 cm-1 region, since they have only one N–H bond. The C–N stretch appears at 1281 rather than at lower wavenumbers because aniline is an aromatic compound. uses its best efforts to deliver a high quality copy of the The spectrum of aniline is shown below. Box 9010 Postvak 74 6500 GL Nijmegen The Netherlands, FTICR mass spectrometer laboratory for IR spectroscopy of ions in the gas phase, 3-D quadrupole ion trap mass spectrometer for IR ion spectroscopy, The breakdown chemistry of astronomical Polycyclic Aromatic Hydrocarbon (PAH) species, Hydrogenated polycyclic aromatic hydrocarbons (PAHs), PhD candidate in Spectroscopy of PAH clusters. InChI=1S/C7H9N/c1-8-7-5-3-2-4-6-7/h2-6,8H,1H3, National Institute of Standards and Institute of Standards and Technology, nor is it intended to imply This primary amine shows two N–H stretches (3442, 3360); note the shoulder band, which is an overtone of the N–H bending vibration. © 2012 American Institute of Physics.PDF file: download here Reference: Journal of Chemical Physics 136 (2012) 044305. Chromatogr. In the organic chem teaching labs, you usually know what compound you started with and what compound you are trying to make. IR absorption spectrum of the standard sample of nylon (Krylov et al., 2005) For polyaniline characterized by a number of absorption bands: 3450 and 3370 cm-1 (stretching vibrations of Fluorinated compounds containing a functional group, J. Also note the N–H bend at 1619. ; Ding, S.F., Prediction of rentention idexes. As a beginning student, you should not try to assign or interpret every peak in the spectrum. Vestis Kim. Combustible. 183-184 °C Alfa Aesar: 363 F (183.8889 °C) NIOSH BW6650000 184 °C OU Chemical Safety Data (No longer updated) More details: 183-184 °C Alfa Aesar A14443, 36238: 184 °C SynQuest: 184 °C Oakwood 044723: 184 °C LabNetwork LN00196257: 184 °C SynQuest 3630-1-01: 362-364 F / 760 mmHg (183.3333-184.4444 °C / 760 mmHg) Wikidata Q186414 363 F / 760 mmHg (183.8889 °C / 760 mmHg) … Structure-retention index relationship on polar columns, J. been selected on the basis of sound scientific judgment. ; Santiuste, J.M., Isothermal retention indices on poly93-cyanopropylmethyl)siloxane stationary phases, J. Chromatogr. _____ Copyright © 2020 Elsevier B.V. or its licensors or contributors. Usually, secondary amines do not show a band in this region and tertiary amines never show a band in this region. Chromatogr., 315, 1984, 95-100. umn class: Semi-standard non-polar; Column length: 3.7 m; Column type: Packed; Start T: 130 C; CAS no: 62533; Active phase: Apolane; Data type: Kovats RI; Authors: Dutoit, J., Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases, J.
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