Aluminum, di-μ-chlorotetrachlorodi-
- Formula: Al2Cl6
- Molecular weight: 266.681
- IUPAC Standard InChI: InChI=1S/2Al.4ClH.2Cl/h;;4*1H;;/q2*+2;;;;;;/p-4
- IUPAC Standard InChIKey: GHSXCATXXREJIA-UHFFFAOYSA-J
- CAS Registry Number: 13845-12-0
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: Aluminum chloride Al2Cl6; Aluminum chloride, dimer; Aluminum, hexachlorodi-; (AlCl3)2; Aluminum chloride
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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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -1295.74 | kJ/mol | Review | Chase, 1998 | Data last reviewed in September, 1979 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 474.96 | J/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1979 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 6000. |
|---|---|
| A | 180.3141 |
| B | 2.214529 |
| C | -0.598986 |
| D | 0.051057 |
| E | -1.999242 |
| F | -1356.302 |
| G | 681.2849 |
| H | -1295.743 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in September, 1979 |
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.
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 373. to 453.4 | 10.85337 | 4180.198 | -68.651 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change 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 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 |
|---|---|---|---|
| 12.18 | PE | Lappert, Pedley, et al., 1976 | Vertical value; LLK |
| 12.18 | PE | Lappert, Pedley, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| Al2Cl5+ | 13.1 ± 0.5 | Cl | EI | Porter and Zeller, 1960 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Lappert, Pedley, et al., 1976
Lappert, M.F.; Pedley, J.B.; Sharp, G.J.; Guest, M.F.,
Bonding studies of compounds of boron and elements of groups 3-5,
J. Chem. Soc. Faraday Trans. 2, 1976, 72, 539. [all data]
Lappert, Pedley, et al., 1974
Lappert, M.F.; Pedley, J.B.; Sharp, G.J.; Westwood, N.P.C.,
Bonding studies of compounds of boron and the Group III and IV elements. XII. Variable temperature HeI photoelectron spectra of Group III halides, 2MX3<=>M2X6(M=Al or Ga, X=Cl, Br, or I),
J. Electron Spectrosc. Relat. Phenom., 1974, 3, 237. [all data]
Porter and Zeller, 1960
Porter, R.F.; Zeller, E.E.,
Mass spectra of aluminum(III) halides and the heats of dissociation of Al2F6(g) and LiFAlF3(g),
J. Chem. Phys., 1960, 33, 858. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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