Ruthenium, bis(η5-Cyclopentadienyl)

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Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
Proton affinity (review)899.1kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity876.8kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
~7.2EQRyan, Eyler, et al., 1992T = 350K; LL
7.50 ± 0.25EIFlesch, Junk, et al., 1972LLK
7.8 ± 0.1EIMuller and D'Or, 1967RDSH
7.45PECauletti, Green, et al., 1980Vertical value; LLK
7.45PEEvans, Green, et al., 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H3Ru+19.6 ± 0.2?EIFlesch, Junk, et al., 1972LLK
C5H5Ru+14.75 ± 0.25C5H5EIFlesch, Junk, et al., 1972LLK
C5H5Ru+14.3 ± 0.2?EIMuller and D'Or, 1967RDSH
C8H8Ru+14.6 ± 0.2C2H2EIFlesch, Junk, et al., 1972LLK
C8H8Ru+13.7 ± 0.2?EIMuller and D'Or, 1967RDSH
Ru+16.50 ± 0.25(C5H5)2EIFlesch, Junk, et al., 1972LLK
Ru+16.1 ± 0.5?EIMuller and D'Or, 1967RDSH

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 COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin WYANDOTTE CHEMICALS CORP., WYANDOTTE, MICHIGAN, USA
Source reference COBLENTZ NO. 3140
Date Not specified, most likely prior to 1970
State SOLID (MINERAL OIL MULL)
Instrument Not specified, most likely a prism, grating, or hybrid spectrometer.
Path length
SPECTRAL CONTAMINATION DUE TO OIL AROUND 2900 CM-1
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY

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


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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Ryan, Eyler, et al., 1992
Ryan, M.F.; Eyler, J.R.; Richardson, D.E., Adiabatic ionization energies, bond disruption enthalpies, and solvation free energies for gas-phase metallocenes and metallocenium ions, J. Am. Chem. Soc., 1992, 114, 8611. [all data]

Flesch, Junk, et al., 1972
Flesch, G.D.; Junk, G.A.; Svec, H.J., Ionization efficiency data and fragmentation mechanisms for ferrocene, nickelocene, and ruthenocene, J. Chem. Soc. Dalton Trans., 1972, 1102. [all data]

Muller and D'Or, 1967
Muller, J.; D'Or, L., Massenspektrometrische Untersuchungen an Dicyclopentadienylkomplexen von Ubergangsmetallen, J.Organometal. Chem., 1967, 10, 313. [all data]

Cauletti, Green, et al., 1980
Cauletti, C.; Green, J.C.; Kelly, M.R.; Powell, P.; Van Tilborg, J., Photoelectron spectra of metallocenes, J. Electron Spectrosc. Relat. Phenom., 1980, 19, 327. [all data]

Evans, Green, et al., 1972
Evans, S.; Green, M.L.H.; Jewitt, B.; Orchard, A.F.; Pygall, C.F., Electronic structure of metal complexes containing π-cyclopentadienyl and related ligands, J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1847. [all data]


Notes

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