Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

iodine pentafluoride

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Gas phase thermochemistry data

Go To: Top, 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.

Quantity Value Units Method Reference Comment
Deltafgas-200.84kcal/molReviewChase, 1998Data last reviewed in December, 1969
Quantity Value Units Method Reference Comment
gas,1 bar79.950cal/mol*KReviewChase, 1998Data last reviewed in December, 1969

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. - 6000.
A 30.70751
B 0.921841
C -0.248826
D 0.021183
E -0.581700
F -211.9850
G 113.5740
H -200.8400
ReferenceChase, 1998
Comment Data last reviewed in December, 1969

Phase change data

Go To: Top, Gas phase thermochemistry 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil371.KN/APCR Inc., 1990BS

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Reference Comment
9.39330.Osborne, 1971Based on data from 283. - 378. K.; AC

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
12.943 ± 0.005PEDeKock, Higginson, et al., 1972LLK
13.5 ± 0.2EIIrsa and Friedman, 1958RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
IF+~24.?EIIrsa and Friedman, 1958RDSH
IF2+15.1 ± 0.3?EIIrsa and Friedman, 1958RDSH
IF3+11.5 ± 0.3?EIIrsa and Friedman, 1958RDSH
IF4+13.6 ± 0.3F-?EIIrsa and Friedman, 1958RDSH

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]

PCR Inc., 1990
PCR Inc., Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]

Osborne, 1971
Osborne, Darrell W., Calorimetric Study of Iodine Pentafluoride: Heat Capacity between 5 and 350°K, Enthalpy of Fusion and Vaporization, Standard Entropy of the Vapor, and Other Thermodynamic Properties, J. Chem. Phys., 1971, 54, 9, 3790, https://doi.org/10.1063/1.1675430 . [all data]

DeKock, Higginson, et al., 1972
DeKock, R.L.; Higginson, B.R.; Lloyd, D.R., Photoelectron spectra of halides. Part 6.--The spectra of SF5Cl, BrF5 and IF5, Faraday Discuss. Chem. Soc., 1972, 54, 84. [all data]

Irsa and Friedman, 1958
Irsa, A.P.; Friedman, L., Mass spectra of halogen fluorides, J. Inorg. Nucl. Chem., 1958, 6, 77. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References