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Cystine

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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafsolid-1105.kJ/molCcbBecker and Roth, 1934hf_H2SO4.10,000H2O=-900.752 kJ/mol; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-4248.0 ± 3.8kJ/molCcrSunner, 1946Reanalyzed by Cox and Pilcher, 1970, Original value = -4269.23 kJ/mol; ALS
Deltacsolid-4230.0 ± 3.8kJ/molCcbHuffman and Ellis, 1935Reanalyzed by Cox and Pilcher, 1970, Original value = -4168.9 ± 3.8 kJ/mol; ALS
Deltacsolid-4201.2kJ/molCcbBecker and Roth, 1934hf_H2SO4.10,000H2O=-900.752 kJ/mol; ALS
Deltacsolid-4158.2kJ/molCcbEmery and Benedict, 1911ALS
Quantity Value Units Method Reference Comment
solid,1 bar280.58J/mol*KN/AHutchens, Cole, et al., 1964DH
solid,1 bar286.6J/mol*KN/AHuffman and Ellis, 1935, 2Extrapolation below 90 K, 79.45 J/mol*K.; DH

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
261.92298.15Hutchens, Cole, et al., 1964T = 10 to 310 K.; DH
268.6297.3Huffman and Ellis, 1935, 2T = 85 to 298 K. Value is unsmoothed experimental datum.; DH

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COPYRIGHT (C) 1988 by COBLENTZ SOCIETY INC.
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin SMITH KLINE & FRENCH LABS.
Source reference COBLENTZ NO. 08403
Date 1965/07/15
Name(s) L-Cystine
State SOLID (OIL MULL, BETWEEN KBr DISCS)
INACTIVE KBr PLATES AROUND 200-350 CM-1
SPECTRAL CONTAMINATION DUE TO OIL AROUND 2900 CM-1
Instrument PERKIN-ELMER 521 (GRATING)
Instrument parameters ORDER CHANGES: 1999, 690 CM-1
Resolution 2
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


Mass spectrum (electron ionization)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW-8324
NIST MS number 228153

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


UV/Visible spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Johnson, 1971
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 19868
Instrument Unicam SP 500
Boiling point 258-261 dec.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Becker and Roth, 1934
Becker, G.; Roth, W.A., Zur bestimmung der verbrennungswarme von organischen schwefelverbindunge, Z. Phys. Chem., 1934, 169, 287-296. [all data]

Sunner, 1946
Sunner, S., Determination of combustion heats of organo-sulphur compounds, Svensk. Kim. Tidr., 1946, 58, 71-81. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Huffman and Ellis, 1935
Huffman, H.M.; Ellis, E.L., Thermal Data. II. The heats of combustion of l-cysteine, of l-cystine, «beta»-thiolactic acid and «beta»,«beta»'-dithiodilactic acid, J. Am. Chem. Soc., 1935, 57, 41-46. [all data]

Emery and Benedict, 1911
Emery, A.G.; Benedict, F.G., The heat of combustion of compounds of physiological importance, Am. J. Physiol., 1911, 28, 301-307. [all data]

Hutchens, Cole, et al., 1964
Hutchens, J.O.; Cole, A.G.; Stout, J.W., Heat capacities and entropies of L-cystine and L-methionine. The transition of L-methionine near 305.5 K, J. Biol. Chem., 1964, 239, 591-595. [all data]

Huffman and Ellis, 1935, 2
Huffman, H.M.; Ellis, E.L., Thermal data. III. The heat capacities, entropies and free energies of four organic compounds containing sulfur, J. Am. Chem. Soc., 1935, 57, 46-48. [all data]

Johnson, 1971
Johnson, E.A., UV atlas of organic compounds, 1971, 5, J2/2. [all data]


Notes

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