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Experimental data for C2H5NO3 (Nitric acid, ethyl ester)

22 02 02 11 45
Other names
Ethyl nitrate; Ethylester kyseliny dusicne; NA 1993; Nitric acid, ethyl ester; Nitric ether;
INChI INChIKey SMILES IUPAC name
InChI=1S/C2H5NO3/c1-2-6-3(4)5/h2H2,1H3 IDNUEBSJWINEMI-UHFFFAOYSA-N O=[N+]([O-])OCC Ethyl nitrate
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 -154.81 3.35 kJ mol-1 webbook
Hfg(0K) enthalpy of formation   3.35 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  
Barrier to Internal Rotation 2.5   kJ mol-1 1974Riv/Wil:1376 V1=6.099, V2=-4.050, V3=2.974, V4=0.830 kcal/mol
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
1 A' 2977   1990Dur/She:635      
2 A' 2949   1990Dur/She:635      
3 A' 2940   1990Dur/She:635      
4 A' 1660   1990Dur/She:635      
5 A' 1519   1990Dur/She:635      
6 A' 1460   1990Dur/She:635      
7 A' 1392   1990Dur/She:635      
8 A' 1369   1990Dur/She:635      
9 A' 1288   1990Dur/She:635      
10 A' 1270   1990Dur/She:635      
11 A' 1122   1990Dur/She:635      
12 A' 1025   1990Dur/She:635      
13 A' 851   1990Dur/She:635      
14 A' 702   1990Dur/She:635      
15 A' 566   1990Dur/She:635      
16 A' 378   1990Dur/She:635      
17 A' 242   1990Dur/She:635      
18 A" 2990   1990Dur/She:635      
19 A" 2986   1990Dur/She:635      
20 A" 1444   1990Dur/She:635      
21 A" 1298   1990Dur/She:635      
22 A" 1161   1990Dur/She:635      
23 A" 903   1990Dur/She:635      
24 A" 765   1990Dur/She:635      
25 A" 203   1990Dur/She:635      
26 A" 120   1990Dur/She:635      
27 A" 112   1990Dur/She:635      

vibrational zero-point energy: 17846.0 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for C2H5NO3 (Nitric acid, ethyl ester).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
0.33273 0.07365 0.06174 1974Riv/Wil:1376

Calculated rotational constants for C2H5NO3 (Nitric acid, ethyl ester).
Product of moments of inertia moments of inertia
3166153amu3Å6   1.4497727079459E-113gm3 cm6
Geometric Data
picture of Nitric acid, ethyl ester

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
rNO 1.215   1 3 1974Riv/Wil:1376
rNO 1.215   1 4 1974Riv/Wil:1376
rNO 1.407   1 2 1974Riv/Wil:1376
rCO 1.430   2 5 1974Riv/Wil:1376
rCC 1.528   5 6 1974Riv/Wil:1376
aONO 111 2 1 3 1974Riv/Wil:1376
aONO 118 2 1 4 1974Riv/Wil:1376
aCON 111 1 2 5 1974Riv/Wil:1376
aCCO 109.47 2 5 6 1974Riv/Wil:1376 !assumed

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 C2H5NO3 (Nitric acid, ethyl ester).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 5
C-C 1
C-O 1
N-O 1
N=O 2

Connectivity
Atom 1 Atom 2
N1 O2
N1 O3
N1 O4
O2 C5
C5 C6
C5 H7
C5 H8
C6 H9
C6 H10
C6 H11
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
11.220       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       3.390 1974Hel/Hel(II/6) μa=3.32± 0.01 μb=0.739± 0.03 μc=0 μ= 3.39± 0.02 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 C2H5NO3 (Nitric acid, ethyl ester).
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 C2H5NO3 (Nitric acid, ethyl ester).

References
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squib reference DOI
1974Hel/Hel(II/6) Hellwege, KH and AM Hellwege (eds.). Landolt-Bornstein: Group II: Volume 6 Molecular Constants from Microwave, Molecular Beam, and Electron Spin Resonance Spectroscopy Springer-Verlag. Berlin. 1974. 10.1007/b19951 
1974Riv/Wil:1376 DG Scroggin, JM Riveros, EB Wilson, "Microwave spectrum and rotational isomerism of ethyl nitrate" J. Chem. Phys. 60, 1376, 1974 10.1063/1.1681207
1990Dur/She:635 Durig and Sheehan. Raman Spectra, Vibrational Assignment, Structural Parameters and Ab Initio Calculations for Ethyl Nitrate. J. Raman. Spec. Vol. 21. pgs. 635-644. 10.1002/jrs.1250211003
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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