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

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-356.242311
Energy at 298.15K-356.249846
HF Energy-355.452951
Nuclear repulsion energy239.457365
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 MP4/3-21G
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' 3120 3025        
2 A' 3060 2967        
3 A' 3049 2957        
4 A' 1594 1546        
5 A' 1578 1531        
6 A' 1511 1465        
7 A' 1475 1431        
8 A' 1402 1360        
9 A' 1146 1111        
10 A' 1023 992        
11 A' 985 956        
12 A' 893 866        
13 A' 736 714        
14 A' 619 601        
15 A' 474 459        
16 A' 347 337        
17 A' 213 207        
18 A" 3136 3041        
19 A" 3103 3009        
20 A" 1567 1520        
21 A" 1315 1275        
22 A" 1193 1157        
23 A" 864 838        
24 A" 615 596        
25 A" 252 244        
26 A" 116 113        
27 A" 87 84        

Unscaled Zero Point Vibrational Energy (zpe) 17735.8 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 17200.2 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 MP4/3-21G
ABC
0.29706 0.06831 0.05674

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.139 -0.376 0.000
O2 0.000 0.669 0.000
O3 2.310 0.165 0.000
O4 0.771 -1.618 0.000
C5 -1.313 -0.053 0.000
C6 -2.354 1.085 0.000
H7 -1.396 -0.684 0.893
H8 -1.396 -0.684 -0.893
H9 -3.367 0.659 0.000
H10 -2.226 1.710 0.893
H11 -2.226 1.710 -0.893

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.54581.28981.29482.47293.78642.70542.70544.62304.05844.0584
O21.54582.36402.41321.49842.39072.13992.13993.36682.61442.6144
O31.28982.36402.35473.62904.75383.90543.90545.69794.87404.8740
O41.29482.41322.35472.60584.13192.52292.52294.72274.56634.5663
C52.47291.49843.62902.60581.54281.09681.09682.17382.17672.1767
C63.78642.39074.75384.13191.54282.20172.20171.09881.09681.0968
H72.70542.13993.90542.52291.09682.20171.78592.54662.53403.0999
H82.70542.13993.90542.52291.09682.20171.78592.54663.09992.5340
H94.62303.36685.69794.72272.17381.09882.54662.54661.78951.7895
H104.05842.61444.87404.56632.17671.09682.53403.09991.78951.7851
H114.05842.61444.87404.56632.17671.09683.09992.53401.78951.7851

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 108.637 O2 N1 O3 112.646
O2 N1 O4 116.046 O2 C5 C6 103.635
O2 C5 H7 110.126 O2 C5 H8 110.126
O3 N1 O4 131.308 C5 C6 H9 109.611
C5 C6 H10 109.954 C5 C6 H11 109.954
C6 C5 H7 111.929 C6 C5 H8 111.929
H7 C5 H8 109.003 H9 C6 H10 109.183
H9 C6 H11 109.183 H10 C6 H11 108.935
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability