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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 |
|---|
| 1,2,5-Oxadiazole; Azoxazole; 1-Oxa-2,5-diazacyclopentadiene; |
| INChI | INChIKey | SMILES | IUPAC name |
|---|---|---|---|
| InChI=1S/C2H2N2O/c1-2-4-5-3-1/h1-2H | JKFAIQOWCVVSKC-UHFFFAOYSA-N | n1oncc1 |
| State | Conformation |
|---|---|
| 1A1 | C2V |
| Property | Value | Uncertainty | units | Reference | Comment |
|---|
| Mode Number | Symmetry | Frequency | Intensity | Comment | Description | ||||
|---|---|---|---|---|---|---|---|---|---|
| Fundamental(cm-1) | Harmonic(cm-1) | Reference | (km mol-1) | unc. | Reference | ||||
| 1 | A1 | 3157 | 2005Pfl/Pau:327-332 | ||||||
| 2 | A1 | 1418 | |||||||
| 3 | A1 | 1316 | |||||||
| 4 | A1 | 1036 | |||||||
| 5 | A1 | 1005 | |||||||
| 6 | A1 | 872 | |||||||
| 7 | A2 | 824 | |||||||
| 8 | A2 | 635 | |||||||
| 9 | B1 | 839 | B1 B2 numbering changed | ||||||
| 10 | B1 | 631 | |||||||
| 11 | B2 | 3144 | B1 B2 numbering changed | ||||||
| 12 | B2 | 1541 | |||||||
| 13 | B2 | 1176 | |||||||
| 14 | B2 | 953 | |||||||
| 15 | B2 | 888 | |||||||
| A | B | C | reference | comment |
|---|---|---|---|---|
| 0.34881 | 0.32294 | 0.16757 | 1988Sti:597-606 |
Product of moments of inertia ![]() | ||||
|---|---|---|---|---|
| 253783.1 | amu3Å6 | 1.16206560880819E-114 | gm3 cm6 | |
Point Group C2v
| Description | Value | unc. | Connectivity | Reference | Comment | |||
|---|---|---|---|---|---|---|---|---|
| Atom 1 | Atom 2 | Atom 3 | Atom 4 | |||||
| rNO | 1.373 | 0.001 | 1 | 2 | 1988Sti:597-606 | |||
| rCN | 1.303 | 0.001 | 2 | 4 | 1988Sti:597-606 | |||
| rCC | 1.421 | 0.001 | 4 | 5 | 1988Sti:597-606 | |||
| rHC | 1.076 | 0.001 | 4 | 6 | 1988Sti:597-606 | |||
| aNON | 111.15 | 0.08 | 2 | 1 | 3 | 1988Sti:597-606 | ||
| aCNO | 105.53 | 0.05 | 1 | 2 | 4 | 1988Sti:597-606 | ||
| aCCN | 108.89 | 0.03 | 2 | 4 | 5 | 1988Sti:597-606 | ||
| aHCC | 130.16 | 0.03 | 4 | 5 | 7 | 1988Sti:597-606 | ||
| Atom | x (Å) | y (Å) | z (Å) |
|---|---|---|---|
| O1 | 0.0000 | 0.0000 | 1.1289 |
| N2 | 0.0000 | 1.1325 | 0.3527 |
| N3 | 0.0000 | -1.1325 | 0.3527 |
| C4 | 0.0000 | 0.7104 | -0.8803 |
| C5 | 0.0000 | -0.7104 | -0.8803 |
| H6 | 0.0000 | 1.4045 | -1.7029 |
| H7 | 0.0000 | -1.4045 | -1.7029 |
| O1 | N2 | N3 | C4 | C5 | H6 | H7 | |
|---|---|---|---|---|---|---|---|
| O1 | 1.3729 | 1.3729 | 2.1310 | 2.1310 | 3.1609 | 3.1609 | |
| N2 | 1.3729 | 2.2649 | 1.3032 | 2.2173 | 2.0735 | 3.2652 | |
| N3 | 1.3729 | 2.2649 | 2.2173 | 1.3032 | 3.2652 | 2.0735 | |
| C4 | 2.1310 | 1.3032 | 2.2173 | 1.4209 | 1.0763 | 2.2693 | |
| C5 | 2.1310 | 2.2173 | 1.3032 | 1.4209 | 2.2693 | 1.0763 | |
| H6 | 3.1609 | 2.0735 | 3.2652 | 1.0763 | 2.2693 | 2.8090 | |
| H7 | 3.1609 | 3.2652 | 2.0735 | 2.2693 | 1.0763 | 2.8090 |
Experimental Bond Angles (degrees) from cartesians
| atom1 | atom2 | atom3 | angle | atom1 | atom2 | atom3 | angle | |
|---|---|---|---|---|---|---|---|---|
| O1 | N2 | C4 | 105.530 | O1 | N3 | C5 | 105.530 | |
| N2 | O1 | N3 | 111.150 | N2 | C4 | C5 | 108.895 | |
| N2 | C4 | H6 | 120.950 | N3 | C5 | C4 | 108.895 | |
| N3 | C5 | H7 | 120.950 | C4 | C5 | H7 | 130.155 | |
| C5 | C4 | H6 | 130.155 |
Bond descriptions
| Bond Type | Count |
|---|---|
| N-O | 2 |
| C=N | 2 |
| C-C | 1 |
| H-C | 2 |
| Atom 1 | Atom 2 |
|---|---|
| O1 | N2 |
| O1 | N3 |
| N2 | C4 |
| N3 | C5 |
| C4 | C5 |
| C4 | H6 |
| C5 | H7 |
| Energy (cm-1) | Degeneracy | reference | description |
|---|---|---|---|
| 0 | 1 | 1A1 |
| 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 | 3.380 | 1988Sti:597-606 | MW μ0 | 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 | |||||
| squib | reference | DOI |
|---|---|---|
| 1988Sti:597-606 | OL Stiefvater "Microwave Spectra of Furazan" Z. Naturforsch. 43a, 597-606 (1988) | |
| 2005Pfl/Pau:327-332 | K Pflüger, M Paulus, S Jagiella, T Burkert, G Rauhut "Multi-level vibrational SCF calculations and FTIR measurements on furazan" Theor Chem Acc (2005) 114: 327–332 | 10.1007/s00214-005-0678-4 |
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