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Experimental data for CH3CH(CH3)ONO (Isopropyl nitrite)

22 02 02 11 45
Other names
2-Propanol nitrite; i-C3H7ONO; iso-Propyl nitrite; Isopropylester kyseliny dusite; Nitrous acid, 1-methylethyl ester; Nitrous acid, isopropyl ester; isopropyl nitrite;
INChI INChIKey SMILES IUPAC name
InChI=1S/C3H7NO2/c1-3(2)6-4-5/h3H,1-2H3 SKRDXYBATCVEMS-UHFFFAOYSA-N O=NOC(C)C isopropyl nitrite
State Conformation
1A C1
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -133.47 4.18 kJ mol-1 webbook
Hfg(0K) enthalpy of formation   4.18 kJ mol-1 webbook
Entropy (298.15K) entropy     J K-1 mol-1  
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity     kJ mol-1  
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference

Calculated vibrational frequencies for CH3CH(CH3)ONO (Isopropyl nitrite).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.25169 0.07162 0.05992 1983End/Oka:327

Calculated rotational constants for CH3CH(CH3)ONO (Isopropyl nitrite).
Product of moments of inertia moments of inertia
4435751amu3Å6   2.0311177338486E-113gm3 cm6
Geometric Data
picture of Isopropyl nitrite

Point Group C1


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCH 1.090   2 1 1987Kuchitsu(II/15) assumed
rCC 1.534   2 6 1987Kuchitsu(II/15) assumed
rCO 1.432 0.006 2 11 1987Kuchitsu(II/15)
rON 1.414 0.006 11 13 1987Kuchitsu(II/15)
rNO 1.170 0.006 12 13 1987Kuchitsu(II/15)
aHCC 109.5 1 2 10 1987Kuchitsu(II/15) assumed
aCCO 107.6 6 2 11 1987Kuchitsu(II/15) assumed
aHCO 109.5 1 2 11 1987Kuchitsu(II/15) assumed
aCON 113.2 0.6 2 11 13 1987Kuchitsu(II/15)
aONO 111.2 0.6 11 13 12 1987Kuchitsu(II/15)
aCCC 115.2 1 6 2 10 1987Kuchitsu(II/15)

These cartesians were determined using some assumed coordinate values. Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for CH3CH(CH3)ONO (Isopropyl nitrite).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 7
C-C 2
C-O 1
N-O 1
N=O 1

Connectivity
Atom 1 Atom 2
H1 C2
C2 C6
C2 C10
C2 O11
H3 C6
H4 C6
H5 C6
H7 C10
H8 C10
H9 C10
O11 N13
O12 N13
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
10.230 0.010     webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
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
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for CH3CH(CH3)ONO (Isopropyl nitrite).
Electric quadrupole moment quadrupole
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

Calculated electric quadrupole moments for CH3CH(CH3)ONO (Isopropyl nitrite).

References
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squib reference DOI
1983End/Oka:327 K Endo, H okamatsu, Y Kamura "MICROWAVE-SPECTRUM AND STRUCTURE OF ISOPROPYL NITRITE" NIPPON KAGAKU KAISHI 3, 327-331, 1983 10.1246/nikkashi.1983.327
1987Kuchitsu(II/15) Kuchitsu (ed.), Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 15: Structure Data of Free Polyatomic Molecules. Springer-Verlag, Berlin, 1987.  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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