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: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-359.438693
Energy at 298.15K-359.446622
HF Energy-359.438693
Nuclear repulsion energy252.066779
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 mPW1PW91/6-31+G**
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' 3170 3018 11.95      
2 A' 3102 2952 10.28      
3 A' 3085 2936 11.72      
4 A' 1780 1695 455.91      
5 A' 1526 1453 3.01      
6 A' 1506 1434 7.31      
7 A' 1440 1371 14.23      
8 A' 1414 1346 109.78      
9 A' 1358 1292 182.36      
10 A' 1155 1100 14.41      
11 A' 1062 1011 76.74      
12 A' 956 910 154.40      
13 A' 908 864 116.25      
14 A' 734 699 8.84      
15 A' 585 556 2.34      
16 A' 384 366 1.56      
17 A' 228 217 0.48      
18 A" 3183 3029 21.11      
19 A" 3156 3004 2.93      
20 A" 1493 1421 9.69      
21 A" 1296 1233 0.86      
22 A" 1182 1125 4.57      
23 A" 826 786 0.03      
24 A" 790 752 13.77      
25 A" 255 243 0.41      
26 A" 131 125 1.05      
27 A" 85 81 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 18395.1 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 17508.5 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 mPW1PW91/6-31+G**
ABC
0.33550 0.07409 0.06211

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.099 -0.295 0.000
O2 0.000 0.551 0.000
O3 2.147 0.292 0.000
O4 0.891 -1.486 0.000
C5 -1.275 -0.128 0.000
C6 -2.317 0.966 0.000
H7 -1.339 -0.761 0.887
H8 -1.339 -0.761 -0.887
H9 -3.311 0.511 0.000
H10 -2.228 1.596 0.887
H11 -2.228 1.596 -0.887

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.38661.20121.20942.37993.64142.63662.63664.48263.92793.9279
O21.38662.16282.22281.44422.35412.07422.07423.31082.61572.6157
O31.20122.16282.17733.44794.51513.74893.74895.46234.65064.6506
O41.20942.22282.17732.55624.03742.50712.50714.65154.47304.4730
C52.37991.44423.44792.55621.51071.09221.09222.13352.15992.1599
C63.64142.35414.51514.03741.51072.17392.17391.09261.09161.0916
H72.63662.07423.74892.50711.09222.17391.77492.50822.51873.0811
H82.63662.07423.74892.50711.09222.17391.77492.50823.08112.5187
H94.48263.31085.46234.65152.13351.09262.50822.50821.77101.7710
H103.92792.61574.65064.47302.15991.09162.51873.08111.77101.7742
H113.92792.61574.65064.47302.15991.09163.08112.51871.77101.7742

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 114.419 O2 N1 O3 113.199
O2 N1 O4 117.633 O2 C5 C6 105.608
O2 C5 H7 108.938 O2 C5 H8 108.938
O3 N1 O4 129.168 C5 C6 H9 109.015
C5 C6 H10 111.172 C5 C6 H11 111.172
C6 C5 H7 112.275 C6 C5 H8 112.275
H7 C5 H8 108.686 H9 C6 H10 108.346
H9 C6 H11 108.346 H10 C6 H11 108.707
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.051      
2 O -0.026      
3 O -0.093      
4 O -0.115      
5 C -0.053      
6 C -0.603      
7 H 0.187      
8 H 0.187      
9 H 0.183      
10 H 0.192      
11 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.798 0.250 0.000 3.806
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.771 -0.055 0.000
y -0.055 -38.241 0.000
z 0.000 0.000 -33.351
Traceless
 xyz
x 0.025 -0.055 0.000
y -0.055 -3.680 0.000
z 0.000 0.000 3.655
Polar
3z2-r27.310
x2-y22.470
xy-0.055
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.822 -0.175 0.000
y -0.175 6.986 0.000
z 0.000 0.000 4.901


<r2> (average value of r2) Å2
<r2> 177.219
(<r2>)1/2 13.312