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All results from a given calculation for C2H5NO3 (Nitric acid, ethyl ester)

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at G3
 hartrees
Energy at 0K-359.284705
Energy at 298.15K-359.277491
HF Energy-357.514120
Nuclear repulsion energy256.150804
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3297 3107 34.72      
2 A' 3284 3094 1.26      
3 A' 3224 3038 16.18      
4 A' 1906 1796 722.49      
5 A' 1672 1576 2.40      
6 A' 1642 1548 8.18      
7 A' 1612 1519 154.66      
8 A' 1572 1481 101.75      
9 A' 1519 1431 138.39      
10 A' 1253 1180 24.08      
11 A' 1187 1119 264.27      
12 A' 1103 1039 15.26      
13 A' 1003 945 6.16      
14 A' 828 781 2.56      
15 A' 644 607 16.98      
16 A' 421 397 7.78      
17 A' 251 237 0.55      
18 A" 3349 3156 30.81      
19 A" 3302 3111 10.94      
20 A" 1628 1534 5.27      
21 A" 1419 1337 1.35      
22 A" 1297 1222 6.18      
23 A" 918 865 29.21      
24 A" 890 839 5.16      
25 A" 275 259 0.55      
26 A" 132 124 0.92      
27 A" 109 103 0.93      

Unscaled Zero Point Vibrational Energy (zpe) 19869.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 18721.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/6-31G*
ABC
0.32658 0.07369 0.06152

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.098 -0.319 0.000
O2 0.000 0.569 0.000
O3 2.170 0.262 0.000
O4 0.855 -1.519 0.000
C5 -1.279 -0.108 0.000
C6 -2.303 1.005 0.000
H7 -1.355 -0.740 0.888
H8 -1.355 -0.740 -0.888
H9 -3.307 0.573 0.000
H10 -2.193 1.630 0.887
H11 -2.193 1.630 -0.887

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.41231.21921.22442.38673.64952.64242.64244.49443.92653.9265
O21.41232.19192.25641.44702.34362.08272.08273.30682.59262.5926
O31.21922.19192.21373.46904.53423.77063.77065.48584.65784.6578
O41.22442.25642.21372.55884.04262.50562.50564.65824.47164.4716
C52.38671.44703.46902.55881.51171.09271.09272.13892.15462.1546
C63.64952.34364.53424.04261.51172.17542.17541.09301.09121.0912
H72.64242.08273.77062.50561.09272.17541.77512.51472.51443.0778
H82.64242.08273.77062.50561.09272.17541.77512.51473.07782.5144
H94.49443.30685.48584.65822.13891.09302.51472.51471.77381.7738
H103.92652.59264.65784.47162.15461.09122.51443.07781.77381.7747
H113.92652.59264.65784.47162.15461.09123.07782.51441.77381.7747

picture of Nitric acid, ethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 C5 116.381 O2 N1 O3 113.990
O2 N1 O4 118.050 O2 C5 C6 105.373
O2 C5 H7 108.773 O2 C5 H8 108.773
O3 N1 O4 127.960 C5 C6 H9 109.157
C5 C6 H10 110.925 C5 C6 H11 110.925
C6 C5 H7 112.328 C6 C5 H8 112.328
H7 C5 H8 109.103 H9 C6 H10 108.547
H9 C6 H11 108.547 H10 C6 H11 108.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability