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Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology |
You are here: Experimental > One molecule all properties |
Other names |
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2-Butyl radical; sec-Butyl radical; sec-C4H9; butan-2-yl; |
INChI | INChIKey | SMILES | IUPAC name |
---|---|---|---|
InChI=1S/C4H9/c1-3-4-2/h3H,4H2,1-2H3 | ULOIAOPTGWSNHU-UHFFFAOYSA-N | C[CH]CC | butan-2-yl |
State | Conformation |
---|---|
1A | C1 |
Property | Value | Uncertainty | units | Reference | Comment |
---|---|---|---|---|---|
Hfg(298.15K) ![]() |
67.36 | 2.10 | kJ mol-1 | 1994Ber/Ell:2744 | |
Hfg(0K) ![]() |
91.63 | 2.10 | kJ mol-1 | 1994Ber/Ell:2744 | |
Entropy (298.15K) ![]() |
J K-1 mol-1 | ||||
Integrated Heat Capacity (0 to 298.15K) ![]() |
kJ mol-1 | ||||
Heat Capacity (298.15K) ![]() |
91.31 | J K-1 mol-1 | TRC |
Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
---|---|---|---|---|---|---|---|---|---|
Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference |
A | B | C | reference | comment |
---|---|---|---|---|
Product of moments of inertia ![]() | ||||
---|---|---|---|---|
amu3Å6 | 0 | gm3 cm6 |
Point Group C1
Description | Value | unc. | Connectivity | Reference | Comment | |||
---|---|---|---|---|---|---|---|---|
Atom 1 | Atom 2 | Atom 3 | Atom 4 |
Atom | x (Å) | y (Å) | z (Å) |
---|
Bond descriptions
Bond Type | Count |
---|---|
H-C | 9 |
C-C | 3 |
Atom 1 | Atom 2 |
---|---|
C1 | H2 |
C1 | H3 |
C1 | H4 |
C1 | C5 |
C5 | H6 |
C5 | C7 |
C7 | H8 |
C7 | H9 |
C7 | C10 |
C10 | H11 |
C10 | H12 |
C10 | H13 |
Energy (cm-1) | Degeneracy | reference | description |
---|---|---|---|
0 | 2 | 1A |
Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
---|---|---|---|---|
7.250 | 0.020 | 7.590 | 0.030 | webbook |
Electron Affinity | unc. | reference |
---|---|---|
-0.121 | 0.092 | webbook |
State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
x | y | z | total | dipole | quadrupole | ||||||||
1 | 1 | 1A | C1 | True | C1 | 3 | 5 |
State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
xx | yy | zz | dipole | quadrupole | ||||||||
1 | 1 | 1A | C1 | True | C1 | 3 | 5 |
squib | reference | DOI |
---|---|---|
1994Ber/Ell:2744 | J Berkowitz, GB Ellison, D Gutman "Three Methods To Measure RH Bond Energies" J. Phys. Chem. 1994, 98, 2744-2765 | 10.1021/j100062a009 |
TRC | Frenkel, M; Marsh, K.N.; Wilhoit, R.C.; Kabo, G.J.; Roganov, G.N.,Thermodynamics of Organic Compounds in the Gas State,Thermodynamics Research Center, College Station, TX, 1994 | |
webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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