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

using model chemistry: QCISD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at QCISD/TZVP
 hartrees
Energy at 0K-358.745899
Energy at 298.15K-358.753822
HF Energy-357.632569
Nuclear repulsion energy251.421248
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 QCISD/TZVP
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' 3159 3018 18.84      
2 A' 3107 2968 10.50      
3 A' 3080 2942 13.05      
4 A' 1696 1620 495.92      
5 A' 1555 1486 4.05      
6 A' 1528 1460 4.89      
7 A' 1466 1400 3.30      
8 A' 1432 1368 8.35      
9 A' 1341 1281 264.61      
10 A' 1169 1117 13.95      
11 A' 1072 1024 76.73      
12 A' 960 917 92.41      
13 A' 904 864 144.11      
14 A' 731 699 11.84      
15 A' 582 556 2.60      
16 A' 385 368 0.83      
17 A' 233 223 0.45      
18 A" 3176 3034 33.93      
19 A" 3154 3013 0.47      
20 A" 1507 1439 5.50      
21 A" 1315 1256 0.84      
22 A" 1211 1157 3.80      
23 A" 846 809 0.01      
24 A" 750 717 12.59      
25 A" 249 238 0.51      
26 A" 110 105 0.78      
27 A" 92 88 1.00      

Unscaled Zero Point Vibrational Energy (zpe) 18406.0 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 17583.2 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 QCISD/TZVP
ABC
0.33443 0.07367 0.06178

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.104 -0.308 0.000
O2 0.000 0.563 0.000
O3 2.154 0.271 0.000
O4 0.882 -1.496 0.000
C5 -1.277 -0.118 0.000
C6 -2.317 0.984 0.000
H7 -1.349 -0.746 0.888
H8 -1.349 -0.746 -0.888
H9 -3.310 0.532 0.000
H10 -2.218 1.609 0.888
H11 -2.218 1.609 -0.888

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.40591.19911.20922.38843.65592.64512.64514.49283.93683.9368
O21.40592.17382.24041.44752.35452.07912.07913.31032.60832.6083
O31.19912.17382.17743.45314.52723.75423.75425.47044.65814.6581
O41.20922.24042.17742.56154.04732.51562.51564.65654.47694.4769
C52.38841.44753.45312.56151.51451.08991.08992.13412.15772.1577
C63.65592.35454.52724.04731.51452.17162.17161.09161.09021.0902
H72.64512.07913.75422.51561.08992.17161.77572.50302.51013.0746
H82.64512.07913.75422.51561.08992.17161.77572.50303.07462.5101
H94.49283.31035.47044.65652.13411.09162.50302.50301.77221.7722
H103.93682.60834.65814.47692.15771.09022.51013.07461.77221.7754
H113.93682.60834.65814.47692.15771.09023.07462.51011.77221.7754

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 113.648 O2 N1 O3 112.877
O2 N1 O4 117.709 O2 C5 C6 105.271
O2 C5 H7 109.234 O2 C5 H8 109.234
O3 N1 O4 129.414 C5 C6 H9 108.863
C5 C6 H10 110.814 C5 C6 H11 110.814
C6 C5 H7 111.949 C6 C5 H8 111.949
H7 C5 H8 109.095 H9 C6 H10 108.634
H9 C6 H11 108.634 H10 C6 H11 109.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability