Osmocene
- Formula: C10H10Os
- Molecular weight: 320.42
- IUPAC Standard InChIKey: RBPKLTFNJHKDRH-UHFFFAOYSA-N
- CAS Registry Number: 1273-81-0
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 87.07 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies on the assumption that OsO4(cr, yellow) is the only oxide formed but it is likely that the combustion products include a mixture of oxides. |
Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
MS - José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 571. | K | N/A | Baev, Barkatin, et al., 1979 | Uncertainty assigned by TRC = 0.00001 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 506.8 | K | N/A | Baev, Barkatin, et al., 1979 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 19.2 ± 0.41 | kcal/mol | N/A | Baev and Barkatin, 1984 | AC |
ΔsubH° | 19.2 ± 0.41 | kcal/mol | CC-SB | Baev and Barkatin, 1984 | Another value for the enthalpy of vaporization has been reported: 18.0 kcal/mol Fischer and Grubert, 1959; MS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
13.5 ± 0.31 | 535. | Baev and Barkatin, 1984 | Based on data from 506. to 563. K.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
17.4 ± 0.33 | 393. to 506. | Baev and Barkatin, 1984 | AC |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, References, Notes
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:
LL - Sharon G. Lias and Joel F. Liebman
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
~7.0 | EQ | Ryan, Eyler, et al., 1992 | LL |
7.6 ± 0.1 | EI | Muller and D'Or, 1967 | RDSH |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References, Notes
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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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. 3002 |
Date | Not specified, most likely prior to 1970 |
Name(s) | BIS-(CYCLOPENTADIENYL) OSMIUM |
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 |
Melting point | 226-227 C |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Martinho Simões
Martinho Simões, J.A.,
Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]
Baev, Barkatin, et al., 1979
Baev, A.K.; Barkatin, A.A.; Gubin, S.P.; Dyagileva, S.P.,
Thermodynamics of phase transitions and vapor state of some compounds of elements with incomplete d-shells
in Vses. Konf. po Kalorimetrii i Khim. Termodinamike, 8th, Ivanovo, p 386-389, 1979. [all data]
Baev and Barkatin, 1984
Baev, A.K.; Barkatin, A.A.,
Russ. J. Phys. Chem., 1984, 58, 195. [all data]
Fischer and Grubert, 1959
Fischer, E.O.; Grubert, H.,
Chem. Ber., 1959, 92, 2302. [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]
Muller and D'Or, 1967
Muller, J.; D'Or, L.,
Massenspektrometrische Untersuchungen an Dicyclopentadienylkomplexen von Ubergangsmetallen,
J.Organometal. Chem., 1967, 10, 313. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfH°gas Enthalpy of formation of gas at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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