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

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-356.179461
Energy at 298.15K-356.187219
HF Energy-355.468101
Nuclear repulsion energy243.972659
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 CCD/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' 3129 2993 14.54      
2 A' 3094 2960 3.94      
3 A' 3061 2928 8.97      
4 A' 1600 1530 5.86      
5 A' 1582 1514 4.99      
6 A' 1512 1446 193.30      
7 A' 1486 1421 8.52      
8 A' 1425 1363 5.77      
9 A' 1166 1115 16.77      
10 A' 1142 1092 224.68      
11 A' 1020 976 64.51      
12 A' 938 897 37.20      
13 A' 848 811 77.58      
14 A' 678 649 1.37      
15 A' 519 497 2.31      
16 A' 375 359 4.48      
17 A' 226 217 0.35      
18 A" 3152 3015 30.74      
19 A" 3130 2993 0.00      
20 A" 1570 1502 6.29      
21 A" 1326 1269 0.05      
22 A" 1209 1156 5.12      
23 A" 871 833 0.74      
24 A" 666 637 17.46      
25 A" 251 240 0.60      
26 A" 115 110 2.04      
27 A" 98 94 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 18093.7 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 17306.6 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 CCD/3-21G*
ABC
0.31119 0.07043 0.05871

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.124 -0.326 0.000
O2 0.000 0.628 0.000
O3 2.249 0.229 0.000
O4 0.828 -1.556 0.000
C5 -1.301 -0.104 0.000
C6 -2.353 1.018 0.000
H7 -1.367 -0.735 0.892
H8 -1.367 -0.735 -0.892
H9 -3.359 0.577 0.000
H10 -2.236 1.644 0.892
H11 -2.236 1.644 -0.892

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.47451.25421.26552.43583.72812.67782.67784.57333.99553.9955
O21.47452.28452.33621.49342.38532.12652.12653.35932.61252.6125
O31.25422.28452.28143.56634.66973.84743.84745.61904.78674.7867
O41.26552.33622.28142.57764.09242.50832.50834.69944.51934.5193
C52.43581.49343.56632.57761.53791.09421.09422.16742.17352.1735
C63.72812.38534.66974.09241.53792.19962.19961.09791.09611.0961
H72.67782.12653.84742.50831.09422.19961.78382.54622.53203.0973
H82.67782.12653.84742.50831.09422.19961.78382.54623.09732.5320
H94.57333.35935.61904.69942.16741.09792.54622.54621.78761.7876
H103.99552.61254.78674.51932.17351.09612.53203.09731.78761.7839
H113.99552.61254.78674.51932.17351.09613.09732.53201.78761.7839

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 110.316 O2 N1 O3 113.445
O2 N1 O4 116.790 O2 C5 C6 103.784
O2 C5 H7 109.572 O2 C5 H8 109.572
O3 N1 O4 129.766 C5 C6 H9 109.499
C5 C6 H10 110.078 C5 C6 H11 110.078
C6 C5 H7 112.279 C6 C5 H8 112.279
H7 C5 H8 109.205 H9 C6 H10 109.122
H9 C6 H11 109.122 H10 C6 H11 108.920
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability