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

using model chemistry: CISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CISD/6-31G
 hartrees
Energy at 0K-357.908662
Energy at 298.15K-357.916570
HF Energy-357.313193
Nuclear repulsion energy247.499266
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 CISD/6-31G
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' 3218 3018 17.43      
2 A' 3186 2988 3.44      
3 A' 3139 2944 11.77      
4 A' 1634 1533 387.50      
5 A' 1618 1517 6.14      
6 A' 1599 1500 13.39      
7 A' 1533 1438 10.07      
8 A' 1483 1391 4.61      
9 A' 1301 1220 229.89      
10 A' 1200 1126 10.58      
11 A' 1074 1008 68.06      
12 A' 973 913 147.80      
13 A' 892 837 70.99      
14 A' 724 679 3.02      
15 A' 563 528 9.55      
16 A' 384 360 4.95      
17 A' 226 212 0.65      
18 A" 3254 3052 26.22      
19 A" 3227 3027 2.52      
20 A" 1587 1488 8.08      
21 A" 1356 1271 0.04      
22 A" 1247 1169 7.36      
23 A" 884 829 0.42      
24 A" 753 706 21.14      
25 A" 249 234 0.85      
26 A" 115 108 2.83      
27 A" 92 87 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 18756.4 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 17589.7 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 CISD/6-31G
ABC
0.32195 0.07156 0.05987

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.110 -0.310 0.000
O2 0.000 0.555 0.000
O3 2.193 0.268 0.000
O4 0.893 -1.534 0.000
C5 -1.328 -0.120 0.000
C6 -2.327 1.025 0.000
H7 -1.394 -0.745 0.888
H8 -1.394 -0.745 -0.888
H9 -3.341 0.619 0.000
H10 -2.201 1.648 0.886
H11 -2.201 1.648 -0.886

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.40741.22801.24272.44513.68742.69232.69234.54733.94773.9477
O21.40742.21222.27151.48932.37412.10292.10293.34192.61252.6125
O31.22802.21222.22223.54244.58363.83223.83225.54594.69074.6907
O41.24272.27152.22222.63244.11282.57692.57694.74984.52564.5256
C52.44511.48933.54242.63241.51971.08801.08802.14482.16172.1617
C63.68742.37414.58364.11281.51972.18912.18911.09261.09031.0903
H72.69232.10293.83222.57691.08802.18911.77572.53762.52553.0861
H82.69232.10293.83222.57691.08802.18911.77572.53763.08612.5255
H94.54733.34195.54594.74982.14481.09262.53762.53761.77311.7731
H103.94772.61254.69074.52562.16171.09032.52553.08611.77311.7718
H113.94772.61254.69074.52562.16171.09033.08612.52551.77311.7718

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 115.128 O2 N1 O3 113.983
O2 N1 O4 117.861 O2 C5 C6 104.182
O2 C5 H7 108.356 O2 C5 H8 108.356
O3 N1 O4 128.157 C5 C6 H9 109.288
C5 C6 H10 110.761 C5 C6 H11 110.761
C6 C5 H7 113.124 C6 C5 H8 113.124
H7 C5 H8 109.383 H9 C6 H10 108.640
H9 C6 H11 108.640 H10 C6 H11 108.696
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability