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

using model chemistry: MP2/CEP-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/CEP-31G
 hartrees
Energy at 0K-70.928981
Energy at 298.15K-70.936576
HF Energy-70.280988
Nuclear repulsion energy134.172935
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/CEP-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' 3152 3046 36.99      
2 A' 3087 2983 20.51      
3 A' 3050 2948 26.84      
4 A' 1815 1754 53.38      
5 A' 1538 1486 5.55      
6 A' 1528 1476 5.88      
7 A' 1460 1410 8.77      
8 A' 1408 1360 2.28      
9 A' 1190 1149 254.53      
10 A' 1141 1103 23.63      
11 A' 1023 989 41.09      
12 A' 890 860 100.78      
13 A' 813 786 240.12      
14 A' 656 634 3.06      
15 A' 510 493 0.93      
16 A' 352 340 0.47      
17 A' 207 200 0.52      
18 A" 3183 3076 76.56      
19 A" 3162 3055 0.54      
20 A" 1512 1461 7.39      
21 A" 1284 1241 0.32      
22 A" 1179 1139 5.35      
23 A" 850 821 1.25      
24 A" 645 623 3.68      
25 A" 229 222 0.85      
26 A" 110 106 3.49      
27 A" 93 90 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 18032.9 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 17425.2 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/CEP-31G
ABC
0.29585 0.06757 0.05621

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.128 -0.363 0.000
O2 0.000 0.601 0.000
O3 2.288 0.209 0.000
O4 0.849 -1.631 0.000
C5 -1.360 -0.072 0.000
C6 -2.355 1.122 0.000
H7 -1.440 -0.705 0.906
H8 -1.440 -0.705 -0.906
H9 -3.392 0.723 0.000
H10 -2.214 1.749 0.902
H11 -2.214 1.749 -0.902

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.48361.29331.29812.50483.78632.74462.74464.64904.05474.0547
O21.48362.32132.38791.51772.41202.14472.14473.39462.65192.6519
O31.29332.32132.33533.65884.73193.94393.94395.70364.84264.8426
O41.29812.38792.33532.70374.22452.63082.63084.85124.64974.6497
C52.50481.51773.65882.70371.55471.10761.10762.18262.20482.2048
C63.78632.41204.73194.22451.55472.23482.23481.11141.10791.1079
H72.74462.14473.94392.63081.10762.23481.81212.58282.57273.1447
H82.74462.14473.94392.63081.10762.23481.81212.58283.14472.5727
H94.64903.39465.70364.85122.18261.11142.58282.58281.80441.8044
H104.05472.65194.84264.64972.20481.10792.57273.14471.80441.8047
H114.05472.65194.84264.64972.20481.10793.14472.57271.80441.8047

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 113.141 O2 N1 O3 113.246
O2 N1 O4 118.128 O2 C5 C6 103.450
O2 C5 H7 108.547 O2 C5 H8 108.547
O3 N1 O4 128.626 C5 C6 H9 108.766
C5 C6 H10 110.683 C5 C6 H11 110.683
C6 C5 H7 113.087 C6 C5 H8 113.087
H7 C5 H8 109.771 H9 C6 H10 108.798
H9 C6 H11 108.798 H10 C6 H11 109.070
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability