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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-356.189076
Energy at 298.15K-356.196815
HF Energy-355.462192
Nuclear repulsion energy242.069894
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 MP2/3-21G*
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' 3179 3024 12.69      
2 A' 3123 2970 7.06      
3 A' 3105 2954 8.78      
4 A' 1709 1626 13.76      
5 A' 1618 1540 4.92      
6 A' 1603 1525 7.54      
7 A' 1499 1426 7.63      
8 A' 1430 1361 4.02      
9 A' 1168 1112 8.81      
10 A' 1092 1039 258.15      
11 A' 1015 966 66.27      
12 A' 922 877 53.25      
13 A' 820 780 168.68      
14 A' 668 635 2.57      
15 A' 509 484 0.12      
16 A' 368 350 1.06      
17 A' 223 212 0.45      
18 A" 3198 3042 25.25      
19 A" 3170 3016 8.22      
20 A" 1591 1513 6.34      
21 A" 1339 1273 0.16      
22 A" 1215 1156 4.18      
23 A" 881 838 1.07      
24 A" 652 621 10.88      
25 A" 262 250 0.59      
26 A" 121 115 1.91      
27 A" 95 91 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 18287.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 17396.8 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 MP2/3-21G*
ABC
0.30392 0.06972 0.05796

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.125 -0.350 0.000
O2 0.000 0.643 0.000
O3 2.278 0.201 0.000
O4 0.796 -1.587 0.000
C5 -1.307 -0.080 0.000
C6 -2.345 1.051 0.000
H7 -1.384 -0.709 0.889
H8 -1.384 -0.709 -0.889
H9 -3.353 0.624 0.000
H10 -2.220 1.674 0.889
H11 -2.220 1.674 -0.889

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.50071.27801.28002.44733.74212.68652.68654.58274.00904.0090
O21.50072.32102.36801.49382.38012.12982.12983.35302.60362.6036
O31.27802.32102.32223.59664.70093.87743.87745.64734.81594.8159
O41.28002.36802.32222.58764.10182.51302.51304.70144.52944.5294
C52.44731.49383.59662.58761.53481.09211.09212.16342.16722.1672
C63.74212.38014.70094.10181.53482.19372.19371.09481.09241.0924
H72.68652.12983.87742.51301.09212.19371.77812.53842.52503.0882
H82.68652.12983.87742.51301.09212.19371.77812.53843.08822.5250
H94.58273.35305.64734.70142.16341.09482.53842.53841.78211.7821
H104.00902.60364.81594.52942.16721.09242.52503.08821.78211.7781
H114.00902.60364.81594.52942.16721.09243.08822.52501.78211.7781

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 109.620 O2 N1 O3 113.049
O2 N1 O4 116.542 O2 C5 C6 103.592
O2 C5 H7 109.926 O2 C5 H8 109.926
O3 N1 O4 130.409 C5 C6 H9 109.582
C5 C6 H10 110.017 C5 C6 H11 110.017
C6 C5 H7 112.146 C6 C5 H8 112.146
H7 C5 H8 108.993 H9 C6 H10 109.130
H9 C6 H11 109.130 H10 C6 H11 108.942
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability