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: B2PLYP=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-359.278116
Energy at 298.15K-359.286042
HF Energy-358.866756
Nuclear repulsion energy251.413913
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 B2PLYP=FULL/6-31G(2df,p)
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' 3171 3171 11.89      
2 A' 3098 3098 10.44      
3 A' 3089 3089 9.72      
4 A' 1742 1742 311.25      
5 A' 1540 1540 3.19      
6 A' 1518 1518 5.10      
7 A' 1435 1435 0.86      
8 A' 1409 1409 11.85      
9 A' 1316 1316 239.10      
10 A' 1155 1155 16.80      
11 A' 1057 1057 62.08      
12 A' 940 940 67.69      
13 A' 879 879 188.77      
14 A' 717 717 14.79      
15 A' 574 574 0.88      
16 A' 381 381 0.62      
17 A' 229 229 0.47      
18 A" 3181 3181 20.25      
19 A" 3149 3149 5.95      
20 A" 1507 1507 5.63      
21 A" 1301 1301 0.69      
22 A" 1195 1195 4.01      
23 A" 830 830 0.15      
24 A" 782 782 12.45      
25 A" 258 258 0.42      
26 A" 134 134 0.82      
27 A" 91 91 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 18338.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18338.5 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 B2PLYP=FULL/6-31G(2df,p)
ABC
0.33298 0.07391 0.06189

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.102 -0.308 0.000
O2 0.000 0.566 0.000
O3 2.157 0.274 0.000
O4 0.871 -1.497 0.000
C5 -1.270 -0.117 0.000
C6 -2.315 0.979 0.000
H7 -1.338 -0.751 0.885
H8 -1.338 -0.751 -0.885
H9 -3.309 0.529 0.000
H10 -2.219 1.607 0.886
H11 -2.219 1.607 -0.886

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.40641.20401.21202.38033.65182.63352.63354.48993.93463.9346
O21.40642.17632.23961.44232.35202.07562.07563.30922.60622.6062
O31.20402.17632.18843.44924.52733.74793.74795.47164.65924.6592
O41.21202.23962.18842.54784.03562.49412.49414.64534.46884.4688
C52.38031.44233.44922.54781.51441.09071.09072.13862.15792.1579
C63.65182.35204.52734.03561.51442.17512.17511.09081.08991.0899
H72.63352.07563.74792.49411.09072.17511.76962.51112.51733.0775
H82.63352.07563.74792.49411.09072.17511.76962.51113.07752.5173
H94.48993.30925.47164.64532.13861.09082.51112.51111.77051.7705
H103.93462.60624.65924.46882.15791.08992.51733.07751.77051.7711
H113.93462.60624.65924.46882.15791.08993.07752.51731.77051.7711

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 113.346 O2 N1 O3 112.738
O2 N1 O4 117.396 O2 C5 C6 105.376
O2 C5 H7 109.273 O2 C5 H8 109.273
O3 N1 O4 129.866 C5 C6 H9 109.269
C5 C6 H10 110.855 C5 C6 H11 110.855
C6 C5 H7 112.201 C6 C5 H8 112.201
H7 C5 H8 108.434 H9 C6 H10 108.558
H9 C6 H11 108.558 H10 C6 H11 108.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability