return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/3-21G
 hartrees
Energy at 0K-357.500020
Energy at 298.15K-357.507694
HF Energy-357.500020
Nuclear repulsion energy243.929637
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 B3LYPultrafine/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' 3139 3029 13.42      
2 A' 3094 2986 5.55      
3 A' 3072 2964 9.01      
4 A' 1577 1521 6.55      
5 A' 1564 1509 7.53      
6 A' 1466 1415 9.40      
7 A' 1427 1377 168.29      
8 A' 1390 1341 8.62      
9 A' 1149 1109 23.94      
10 A' 1110 1071 215.53      
11 A' 1000 965 46.58      
12 A' 894 863 57.82      
13 A' 820 792 112.58      
14 A' 653 630 4.18      
15 A' 503 485 0.91      
16 A' 364 351 2.45      
17 A' 218 211 0.37      
18 A" 3160 3049 28.15      
19 A" 3134 3024 1.07      
20 A" 1553 1498 8.66      
21 A" 1305 1259 0.15      
22 A" 1179 1138 4.65      
23 A" 861 831 1.94      
24 A" 662 638 14.36      
25 A" 248 239 0.53      
26 A" 127 123 1.78      
27 A" 85 82 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 17877.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 17249.5 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 B3LYPultrafine/3-21G
ABC
0.31135 0.07035 0.05865

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.131 -0.340 0.000
O2 0.000 0.634 0.000
O3 2.253 0.211 0.000
O4 0.813 -1.563 0.000
C5 -1.303 -0.088 0.000
C6 -2.345 1.030 0.000
H7 -1.370 -0.717 0.889
H8 -1.370 -0.717 -0.889
H9 -3.349 0.593 0.000
H10 -2.230 1.655 0.889
H11 -2.230 1.655 -0.889

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.49251.25001.26362.44683.73572.68052.68054.57534.00814.0081
O21.49252.29202.34291.49012.37802.12002.12003.34892.60882.6088
O31.25002.29202.28463.56844.66983.84373.84375.61424.79274.7927
O41.26362.34292.28462.57954.08602.50412.50414.68694.51754.5175
C52.44681.49013.56842.57951.52801.09161.09162.15582.16532.1653
C63.73572.37804.66984.08601.52802.18982.18981.09481.09291.0929
H72.68052.12003.84372.50411.09162.18981.77902.53462.52383.0874
H82.68052.12003.84372.50411.09162.18981.77902.53463.08742.5238
H94.57533.34895.61424.68692.15581.09482.53462.53461.78041.7804
H104.00812.60884.79274.51752.16531.09292.52383.08741.78041.7778
H114.00812.60884.79274.51752.16531.09293.08742.52381.78041.7778

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 110.247 O2 N1 O3 113.089
O2 N1 O4 116.198 O2 C5 C6 103.977
O2 C5 H7 109.436 O2 C5 H8 109.436
O3 N1 O4 130.712 C5 C6 H9 109.450
C5 C6 H10 110.306 C5 C6 H11 110.306
C6 C5 H7 112.350 C6 C5 H8 112.350
H7 C5 H8 109.140 H9 C6 H10 108.949
H9 C6 H11 108.949 H10 C6 H11 108.850
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.513      
2 O -0.313      
3 O -0.262      
4 O -0.280      
5 C -0.164      
6 C -0.585      
7 H 0.223      
8 H 0.223      
9 H 0.207      
10 H 0.219      
11 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.146 0.092 0.000 3.148
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.481 -0.453 0.000
y -0.453 -37.501 0.000
z 0.000 0.000 -33.016
Traceless
 xyz
x 0.777 -0.453 0.000
y -0.453 -3.752 0.000
z 0.000 0.000 2.974
Polar
3z2-r25.949
x2-y23.020
xy-0.453
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.117 -0.246 0.000
y -0.246 5.687 0.000
z 0.000 0.000 3.521


<r2> (average value of r2) Å2
<r2> 185.143
(<r2>)1/2 13.607