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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 |
|---|
| Phosphaethene; methylenephosphane; |
| INChI | INChIKey | SMILES | IUPAC name |
|---|---|---|---|
| InChI=1S/CH3P/c1-2/h2H,1H2 | HIQXJRBKNONWAH-UHFFFAOYSA-N | [CH2]=[PH] | methylenephosphane |
| State | Conformation |
|---|---|
| 1A' | CS |
| Property | Value | Uncertainty | units | Reference | Comment |
|---|---|---|---|---|---|
Hfg(298.15K) ![]() |
kJ mol-1 | webbook | |||
Hfg(0K) ![]() |
-281.83 | kJ mol-1 | webbook | ||
Entropy (298.15K) ![]() |
J K-1 mol-1 | ||||
Integrated Heat Capacity (0 to 298.15K) ![]() |
kJ mol-1 |
| Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
|---|---|---|---|---|---|---|---|---|---|
| Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference | ||||
| A | B | C | reference | comment |
|---|---|---|---|---|
| 4.61997 | 0.54765 | 0.48864 | 1981Kro/Nix:367 |
Product of moments of inertia ![]() | ||||
|---|---|---|---|---|
| 3874.881 | amu3Å6 | 1.77429731942402E-116 | gm3 cm6 | |
Point Group Cs
| Description | Value | unc. | Connectivity | Reference | Comment | |||
|---|---|---|---|---|---|---|---|---|
| Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
| rCH | 1.090 | 0.015 | 1 | 3 | 1981Kro/Nix:367 | cis | ||
| rCH | 1.090 | 0.015 | 1 | 4 | 1981Kro/Nix:367 | trans | ||
| rCP | 1.673 | 0.002 | 1 | 2 | 1981Kro/Nix:367 | |||
| rPH | 1.420 | 0.006 | 2 | 5 | 1981Kro/Nix:367 | |||
| aHCP | 124.4 | 0.8 | 2 | 1 | 3 | 1981Kro/Nix:367 | cis H | |
| aHCP | 118.4 | 1.2 | 2 | 1 | 4 | 1981Kro/Nix:367 | trans H | |
| aHCH | 117.2 | 1.2 | 3 | 1 | 4 | 1981Kro/Nix:367 | ||
| aHPC | 97.4 | 0.4 | 1 | 2 | 5 | 1981Kro/Nix:367 | ||
| dHCPH | 0 | 3 | 1 | 2 | 5 | 1981Kro/Nix:367 | ||
| Atom | x (Å) | y (Å) | z (Å) |
|---|
Bond descriptions
| Bond Type | Count |
|---|---|
| H-C | 2 |
| H-P | 1 |
| C=P | 1 |
| Atom 1 | Atom 2 |
|---|---|
| C1 | P2 |
| C1 | H3 |
| C1 | H4 |
| P2 | H5 |
| Energy (cm-1) | Degeneracy | reference | description |
|---|---|---|---|
| 0 | 1 | 1A' |
| Ionization Energy | I.E. unc. | vertical I.E. | v.I.E. unc. | reference |
|---|---|---|---|---|
| 10.300 | 0.200 | 1981Kro/Nix:367 |
| State | Config | State description | Conf description | Exp. min. | Dipole (Debye) | Reference | comment | Point Group | Components | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| x | y | z | total | dipole | quadrupole | ||||||||
| 1 | 1 | 1A' | Cs | True | 0.869 | 1981Kro/Nix:367 | μa=0.731, μb=0.470 | Cs | 2 | 3 | |||
| State | Config | State description | Conf description | Exp. min. | Quadrupole (D Å) | Reference | comment | Point Group | Components | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xx | yy | zz | dipole | quadrupole | ||||||||
| 1 | 1 | 1A' | Cs | True | Cs | 2 | 3 | |||||
| squib | reference | DOI |
|---|---|---|
| 1981Kro/Nix:367 | HW Kroto, JF Nixon, K Ohno "THE MICROWAVE-SPECTRUM, STRUCTURE, AND DIPOLE-MOMENT OF THE UNSTABLE MOLECULE PHOSPHAETHENE, CH2=PH" J. Mol. Spect. 90(2) 367-373, 1981 | 10.1016/0022-2852(81)90134-X |
| webbook | NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) | 10.18434/T4D303 |
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