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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 |
|---|
| n-Heptane; Dipropylmethane; heptane; |
| INChI | INChIKey | SMILES | IUPAC name |
|---|---|---|---|
| InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3 | IMNFDUFMRHMDMM-UHFFFAOYSA-N | CCCCCCC | heptane |
| State | Conformation |
|---|---|
| 1A1 | C2V |
| Property | Value | Uncertainty | units | Reference | Comment |
|---|---|---|---|---|---|
Hfg(298.15K) ![]() |
-187.80 | 0.79 | kJ mol-1 | webbook | |
Hfg(0K) ![]() |
0.79 | kJ mol-1 | webbook |
| 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 C2v
| Description | Value | unc. | Connectivity | Reference | Comment | |||
|---|---|---|---|---|---|---|---|---|
| Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
| rCH | 1.121 | 0.007 | 1 | 8 | rg | |||
| rCC | 1.534 | 1 | 2 | rg | ||||
| aCCC | 112.6 | 1 | 2 | 4 | rg | |||
| aHCC | 109.8 | 1 | 2 | 10 | rg | |||
| Atom | x (Å) | y (Å) | z (Å) |
|---|
Bond descriptions
| Bond Type | Count |
|---|---|
| C-C | 6 |
| H-C | 16 |
| Atom 1 | Atom 2 |
|---|---|
| C1 | C2 |
| C1 | C3 |
| C1 | H8 |
| C1 | H9 |
| C2 | C4 |
| C2 | H10 |
| C2 | H11 |
| C3 | C5 |
| C3 | H12 |
| C3 | H13 |
| C4 | C6 |
| C4 | H14 |
| C4 | H15 |
| C5 | C7 |
| C5 | H16 |
| C5 | H17 |
| C6 | H18 |
| C6 | H19 |
| C6 | H20 |
| C7 | H21 |
| C7 | H22 |
| C7 | H23 |
| Energy (cm-1) | Degeneracy | reference | description |
|---|---|---|---|
| 0 | 1 | 1A1 |
| Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
|---|---|---|---|---|
| 9.930 | 0.100 | webbook |
| State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| x | y | z | total | dipole | quadrupole | ||||||||
| 1 | 1 | 1A1 | C2v | True | C2v | 1 | 2 | ||||||
| State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xx | yy | zz | dipole | quadrupole | ||||||||
| 1 | 1 | 1A1 | C2v | True | C2v | 1 | 2 | |||||
| alpha | unc. | Reference |
|---|---|---|
| 13.371 | 1998Gus/Rui:163 |
| squib | reference | DOI |
|---|---|---|
| 1998Gus/Rui:163 | M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 | 10.1016/S0022-2860(97)00292-5 |
| webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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