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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-356.196829
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 3034 12.69      
2 A' 3123 2980 7.06      
3 A' 3105 2964 8.78      
4 A' 1709 1631 13.76      
5 A' 1618 1545 4.92      
6 A' 1603 1530 7.54      
7 A' 1499 1430 7.63      
8 A' 1430 1365 4.02      
9 A' 1168 1115 8.81      
10 A' 1092 1043 258.15      
11 A' 1015 969 66.27      
12 A' 922 880 53.25      
13 A' 820 783 168.68      
14 A' 668 637 2.57      
15 A' 509 486 0.12      
16 A' 368 351 1.06      
17 A' 223 212 0.45      
18 A" 3198 3053 25.25      
19 A" 3170 3026 8.22      
20 A" 1591 1519 6.34      
21 A" 1339 1278 0.16      
22 A" 1215 1160 4.18      
23 A" 881 840 1.07      
24 A" 652 623 10.88      
25 A" 262 250 0.59      
26 A" 121 116 1.91      
27 A" 95 91 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 18287.4 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 17455.3 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