Bis(cyclopentadienyl)zirconium dichloride
- Formula: C10H10Cl2Zr
- Molecular weight: 292.316
- IUPAC Standard InChIKey: QRUYYSPCOGSZGQ-UHFFFAOYSA-L
- CAS Registry Number: 1291-32-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Zirconocene dichloride; Dicyclopentadienylzirconium dichloride; Zirconium, dichlorobis(η(5)-2,4-cyclopentadien-1-yl)-; Bis-π-cyclopentadienyldichlorozirconium; Dichlorobis(cyclopentadienyl) zirconium; Dichlorodi-π-cyclopentadienylzirconium; Dichlorodi-π-dicyclopentadienylzirconium; Dichlorodicyclopentadienylzirconium; Dichlorozirconocene; Dicyclopentadienyldichlorozirconium; Zirconcene dichloride; Zirconium dicyclopentadiene dichloride; Zirconium, dichlorobis(2,4-cyclopentadien-1-yl)-; Zirconium, dichlorodi-π-cyclopentadienyl-; Bis(cyclopentadienyl)dichlorozirconium; Dichlorobis(η5-2,4-cyclopentadien-1-yl)zirconium; NSC 93930; bis(3-cyclopentadienyl)dichlorozirconium
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Gas 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 by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -103.6 ± 0.93 | kcal/mol | Review | Martinho Simões |
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 by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -128.7 ± 0.79 | kcal/mol | Review | Martinho Simões | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1427.5 ± 0.69 | kcal/mol | CC-SB | Kir'yanov, Tel'noi, et al., 1976 | Please also see Tel'noi and Rabinovich, 1977. The enthalpy of combustion was quoted from Tel'noi and Rabinovich, 1977. |
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:
AC - William E. Acree, Jr., James S. Chickos
MS - José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 24.6 ± 3.1 | kcal/mol | N/A | KISER, DILLARD, et al., 2009 | See also Diogo, Minas da Piedade, et al., 2001.; AC |
ΔsubH° | 25.9 ± 1.1 | kcal/mol | ME | Diogo, Minas da Piedade, et al., 2001 | AC |
ΔsubH° | 25.10 ± 0.50 | kcal/mol | N/A | Pilcher and Skinner, 1983 | See also Kir'yanov, Tel'noi, et al., 1976.; AC |
ΔsubH° | 19.4 ± 0.50 | kcal/mol | N/A | Pilcher and Skinner, 1983 | See also Kir'yanov, Tel'noi, et al., 1976.; AC |
ΔsubH° | 25.10 ± 0.50 | kcal/mol | CC-SB | Kir'yanov, Tel'noi, et al., 1976 | Two other values for the enthalpy of sublimation have been reported: 24.00 ± 0.41 kcal/mol Balducci, Bardi, et al., 1977 and 23.1 kcal/mol Dillard and Kiser, 1969; MS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
17. ± 1. | 394. to 425. | Jeevan, Mathews, et al., 2008 | AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
23.97 | 425. | A | Stephenson and Malanowski, 1987 | Based on data from 393. to 457. K.; AC |
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 compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.37 ± 0.25 | EI | Dillard and Kiser, 1969 | RDSH |
8.6 ± 0.1 | PE | Cauletti, Clark, et al., 1980 | Vertical value; LLK |
8.60 ± 0.05 | PE | Condorelli, Fragala, et al., 1975 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H3+ | 19.5 ± 0.4 | ? | EI | Dillard and Kiser, 1969 | RDSH |
C3H3ClZr+ | 19.9 | ? | EI | Dillard and Kiser, 1969 | RDSH |
C5H5+ | 13.6 ± 0.2 | ? | EI | Dillard and Kiser, 1969 | RDSH |
C5H5ClZr+ | 19.8 ± 0.4 | ? | EI | Dillard and Kiser, 1969 | RDSH |
C5H5Cl2Zr+ | 12.5 ± 0.2 | C5H5 | EI | Dillard and Kiser, 1969 | RDSH |
C10H10ClZr+ | 12.3 ± 0.2 | Cl | EI | Dillard and Kiser, 1969 | RDSH |
ZrCl2+ | 20.9 ± 0.5 | ? | EI | Dillard and Kiser, 1969 | RDSH |
ZrCl2+ | 24.3 ± 0.5 | ? | EI | Dillard and Kiser, 1969 | RDSH |
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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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-2867 |
NIST MS number | 231012 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), 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]
Kir'yanov, Tel'noi, et al., 1976
Kir'yanov, K.V.; Tel'noi, V.I.; Vasil'eva, G.A.; Rabinovich, I.B.,
Dokl. Akad. Nauk SSSR, 1976, 231, 1021. [all data]
Tel'noi and Rabinovich, 1977
Tel'noi, V.I.; Rabinovich, I.B.,
Russ. Chem. Rev., 1977, 46, 689. [all data]
KISER, DILLARD, et al., 2009
KISER, ROBERT W.; DILLARD, JOHN G.; DUGGER, DONALD L.,
Mass Spectrometry of Inorganic Halides, 2009, 153-180, https://doi.org/10.1021/ba-1968-0072.ch012
. [all data]
Diogo, Minas da Piedade, et al., 2001
Diogo, Hermínio P.; Minas da Piedade, Manuel E.; Gonçalves, Jorge M.; Monte, Manuel J.S.; Ribeiro da Silva, Manuel A.V.,
Enthalpies of Sublimation of M(η5-C5H5)2Cl2 (M = Ti, Zr, Hf, V, Nb, W) Complexes,
Eur. J. Inorg. Chem., 2001, 2001, 1, 257-262, https://doi.org/10.1002/1099-0682(20011)2001:1<257::AID-EJIC257>3.0.CO;2-2
. [all data]
Pilcher and Skinner, 1983
Pilcher, G.; Skinner, H.A.,
Thermochemistry of organometallic compounds, 1983, 43-90, https://doi.org/10.1002/9780470771686.ch2
. [all data]
Balducci, Bardi, et al., 1977
Balducci, G.; Bardi, G.; de Maria, G.; Gigli, R.,
VII All-Union Calorimetry Conference, Moscow, 1977. [all data]
Dillard and Kiser, 1969
Dillard, J.G.; Kiser, R.W.,
The formation of gaseous ions from dicyclopentadienyltitanium dichloride and dicyclopentadienylzirconium dichloride upon electron impact,
J. Organometal. Chem., 1969, 16, 265. [all data]
Jeevan, Mathews, et al., 2008
Jeevan, T.S. Arul; Mathews, Tom; Raghunathan, V.S.; Nagaraja, K.S.,
Vapor pressure of tetrakis(1,1,1-trifluro-5,6-dimethylheptanedionato)zirconium(IV) and dichlorobis(η5-cyclopentadienyl)zirconium(IV) by TG-based transpiration technique,
Thermochimica Acta, 2008, 478, 1-2, 41-44, https://doi.org/10.1016/j.tca.2008.08.010
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Cauletti, Clark, et al., 1980
Cauletti, C.; Clark, J.P.; Green, J.C.; Jackson, S.E.; Fragala, I.L.; Ciliberto, E.; Coleman, A.W.,
Photoelectron spectra of bis-cyclopentadienyl metal dihalides,
J. Electron Spectrosc. Relat. Phenom., 1980, 18, 61. [all data]
Condorelli, Fragala, et al., 1975
Condorelli, G.; Fragala, I.; Centineo, A.; Tondello, E.,
The electronic structure and photoelectron spectra of dichlorodi-π-cyclopentadienyl- titanium(IV), -zirconium(IV) and- hafnium(IV),
J. Organomet. Chem., 1975, 87, 311. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid 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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