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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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Acide formique; Acido formico; Add-F; Ameisensaeure; Aminic acid; Bilorin; Collo-Bueglatt; Collo-Didax; Formic acid; Formic acid, solution; Formira; Formisoton; Formylic acid; Hydrogen carboxylic acid; Kwas metaniowy; Kyselina mravenci; Methanoic acid; Mierenzuur; Myrmicyl; |
INChI | INChIKey | SMILES | IUPAC name |
---|---|---|---|
InChI=1S/CH2O2/c2-1-3/h1H,(H,2,3) | BDAGIHXWWSANSR-UHFFFAOYSA-N | OC=O | Formic acid |
State | Conformation |
---|---|
1A' | CS |
Property | Value | Uncertainty | units | Reference | Comment |
---|---|---|---|---|---|
Hfg(298.15K) ![]() |
-378.80 | 0.50 | kJ mol-1 | Gurvich | |
Hfg(0K) ![]() |
-371.51 | 0.50 | kJ mol-1 | Gurvich | |
Entropy (298.15K) ![]() |
248.87 | J K-1 mol-1 | Gurvich | ||
Integrated Heat Capacity (0 to 298.15K) ![]() |
10.90 | kJ mol-1 | Gurvich | ||
Heat Capacity (298.15K) ![]() |
45.80 | J K-1 mol-1 | Gurvich | ||
Barrier to Internal Rotation | 69.4 | kJ mol-1 |
Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
---|---|---|---|---|---|---|---|---|---|
Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference | ||||
1 | A' | 3570 | 1966Herzberg | OH str | |||||
2 | A' | 2943 | 1966Herzberg | CH stretch | |||||
3 | A' | 1770 | 1966Herzberg | C=O str | |||||
4 | A' | 1387 | 1966Herzberg | CH bend | |||||
5 | A' | 1229 | 1966Herzberg | OH bend | |||||
6 | A' | 1105 | 1966Herzberg | CO stretch | |||||
7 | A' | 625 | 1966Herzberg | OCO bend | |||||
8 | A" | 1033 | 1966Herzberg | CH bend | |||||
9 | A" | 638 | 1966Herzberg | torsion |
A | B | C | reference | comment |
---|---|---|---|---|
2.58548 | 0.40211 | 0.34745 | 1966Herzberg |
Product of moments of inertia ![]() | ||||
---|---|---|---|---|
13262.12 | amu3Å6 | 6.07268543189766E-116 | gm3 cm6 |
Point Group Cs
Description | Value | unc. | Connectivity | Reference | Comment | |||
---|---|---|---|---|---|---|---|---|
Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
rCO | 1.202 | 1 | 3 | 1966Herzberg | ||||
rCO | 1.343 | 1 | 2 | 1966Herzberg | ||||
rCH | 1.097 | 1 | 4 | 1966Herzberg | ||||
rOH | 0.972 | 2 | 5 | 1966Herzberg | ||||
aOCO | 124.9 | 2 | 1 | 3 | 1966Herzberg | |||
aHCO | 124.1 | 3 | 1 | 4 | 1966Herzberg | |||
aHOC | 106.3 | 1 | 2 | 5 | 1966Herzberg |
Atom | x (Å) | y (Å) | z (Å) |
---|---|---|---|
C1 | 0.0000 | 0.4220 | 0.0000 |
O2 | -1.0338 | -0.4353 | 0.0000 |
O3 | 1.1587 | 0.1022 | 0.0000 |
H4 | -0.3512 | 1.4612 | 0.0000 |
H5 | -0.6482 | -1.3276 | 0.0000 |
C1 | O2 | O3 | H4 | H5 | |
---|---|---|---|---|---|
C1 | 1.3430 | 1.2020 | 1.0970 | 1.8658 | |
O2 | 1.3430 | 2.2574 | 2.0157 | 0.9720 | |
O3 | 1.2020 | 2.2574 | 2.0314 | 2.3041 | |
H4 | 1.0970 | 2.0157 | 2.0314 | 2.8046 | |
H5 | 1.8658 | 0.9720 | 2.3041 | 2.8046 |
Experimental Bond Angles (degrees) from cartesians
atom1 | atom2 | atom3 | angle | atom1 | atom2 | atom3 | angle | |
---|---|---|---|---|---|---|---|---|
C1 | O2 | H5 | 106.300 | O2 | C1 | O3 | 124.900 | |
O2 | C1 | H4 | 111.000 | O3 | C1 | H4 | 124.100 |
Bond descriptions
Bond Type | Count |
---|---|
C=O | 1 |
C-O | 1 |
H-C | 1 |
H-O | 1 |
Atom 1 | Atom 2 |
---|---|
C1 | O2 |
C1 | O3 |
C1 | H4 |
O2 | H5 |
Energy (cm-1) | Degeneracy | reference | description |
---|---|---|---|
0 | 1 | 1A' |
Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
---|---|---|---|---|
11.330 | 0.010 | 11.500 | webbook |