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

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-358.494731
Energy at 298.15K-358.502683
HF Energy-357.501575
Nuclear repulsion energy249.967513
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 MP2/6-31G*
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' 3215 3032 10.53      
2 A' 3133 2955 9.66      
3 A' 3124 2946 8.60      
4 A' 1867 1760 184.71      
5 A' 1581 1491 3.14      
6 A' 1561 1472 5.49      
7 A' 1479 1395 5.46      
8 A' 1434 1352 7.17      
9 A' 1316 1241 260.41      
10 A' 1182 1114 20.16      
11 A' 1083 1021 64.45      
12 A' 958 903 67.68      
13 A' 877 827 248.57      
14 A' 721 680 10.21      
15 A' 573 540 0.26      
16 A' 386 364 0.41      
17 A' 233 220 0.50      
18 A" 3230 3046 16.51      
19 A" 3194 3012 10.18      
20 A" 1550 1461 7.06      
21 A" 1323 1247 0.16      
22 A" 1220 1150 4.59      
23 A" 854 805 0.40      
24 A" 753 710 13.08      
25 A" 270 255 0.51      
26 A" 131 123 1.39      
27 A" 101 95 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 18672.6 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 17608.2 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 MP2/6-31G*
ABC
0.32602 0.07356 0.06141

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.099 -0.319 0.000
O2 0.000 0.570 0.000
O3 2.172 0.263 0.000
O4 0.857 -1.520 0.000
C5 -1.280 -0.109 0.000
C6 -2.306 1.005 0.000
H7 -1.355 -0.742 0.888
H8 -1.355 -0.742 -0.888
H9 -3.310 0.572 0.000
H10 -2.196 1.630 0.888
H11 -2.196 1.630 -0.888

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.41341.22031.22542.38913.65292.64432.64434.49813.92953.9295
O21.41342.19362.25841.44922.34622.08442.08443.30972.59472.5947
O31.22032.19362.21553.47264.53863.77363.77365.49054.66184.6618
O41.22542.25842.21552.56114.04632.50752.50754.66224.47504.4750
C52.38911.44923.47262.56111.51331.09291.09292.14032.15602.1560
C63.65292.34624.53864.04631.51332.17722.17721.09341.09151.0915
H72.64432.08443.77362.50751.09292.17721.77592.51672.51603.0795
H82.64432.08443.77362.50751.09292.17721.77592.51673.07952.5160
H94.49813.30975.49054.66222.14031.09342.51672.51671.77451.7745
H103.92952.59474.66184.47502.15601.09152.51603.07951.77451.7755
H113.92952.59474.66184.47502.15601.09153.07952.51601.77451.7755

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 113.139 O2 N1 O3 112.592
O2 N1 O4 117.529 O2 C5 C6 104.717
O2 C5 H7 109.363 O2 C5 H8 109.363
O3 N1 O4 129.879 C5 C6 H9 109.331
C5 C6 H10 110.688 C5 C6 H11 110.688
C6 C5 H7 112.310 C6 C5 H8 112.310
H7 C5 H8 108.673 H9 C6 H10 108.620
H9 C6 H11 108.620 H10 C6 H11 108.841
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability