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

using model chemistry: QCISD/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 QCISD/6-31G*
 hartrees
Energy at 0K-358.515963
Energy at 298.15K-358.523927
HF Energy-357.504882
Nuclear repulsion energy250.601762
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3164 3013 15.97      
2 A' 3109 2961 9.08      
3 A' 3084 2937 11.16      
4 A' 1737 1654 394.73      
5 A' 1570 1495 2.62      
6 A' 1547 1474 5.59      
7 A' 1477 1407 2.29      
8 A' 1438 1370 30.61      
9 A' 1362 1297 244.48      
10 A' 1177 1120 15.06      
11 A' 1082 1030 74.31      
12 A' 969 923 104.33      
13 A' 904 861 107.42      
14 A' 727 692 3.14      
15 A' 577 549 3.22      
16 A' 390 372 2.22      
17 A' 235 224 0.41      
18 A" 3179 3028 29.90      
19 A" 3158 3008 1.98      
20 A" 1535 1462 6.51      
21 A" 1317 1254 0.27      
22 A" 1214 1156 4.81      
23 A" 848 808 0.08      
24 A" 774 737 18.67      
25 A" 263 250 0.50      
26 A" 125 119 1.27      
27 A" 102 97 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 18532.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 17648.3 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/6-31G*
ABC
0.32913 0.07367 0.06160

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.100 -0.303 0.000
O2 0.000 0.563 0.000
O3 2.160 0.284 0.000
O4 0.880 -1.503 0.000
C5 -1.281 -0.126 0.000
C6 -2.316 0.981 0.000
H7 -1.348 -0.760 0.890
H8 -1.348 -0.760 -0.890
H9 -3.320 0.540 0.000
H10 -2.212 1.611 0.890
H11 -2.212 1.611 -0.890

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.39991.21101.22012.38823.65032.64472.64474.50023.92733.9273
O21.39992.17792.24521.45462.35412.08742.08743.32022.60422.6042
O31.21102.17792.19753.46564.53063.76633.76635.48614.65454.6545
O41.22012.24522.19752.56274.04862.51162.51164.67094.47734.4773
C52.38821.45463.46562.56271.51611.09461.09462.14502.16202.1620
C63.65032.35414.53064.04861.51612.18242.18241.09631.09491.0949
H72.64472.08743.76632.51161.09462.18241.77992.52442.52303.0877
H82.64472.08743.76632.51161.09462.18241.77992.52443.08772.5230
H94.50023.32025.48614.67092.14501.09632.52442.52441.77951.7795
H103.92732.60424.65454.47732.16201.09492.52303.08771.77951.7800
H113.92732.60424.65454.47732.16201.09493.08772.52301.77951.7800

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 113.560 O2 N1 O3 112.859
O2 N1 O4 117.782 O2 C5 C6 104.803
O2 C5 H7 109.125 O2 C5 H8 109.125
O3 N1 O4 129.359 C5 C6 H9 109.327
C5 C6 H10 110.757 C5 C6 H11 110.757
C6 C5 H7 112.428 C6 C5 H8 112.428
H7 C5 H8 108.798 H9 C6 H10 108.597
H9 C6 H11 108.597 H10 C6 H11 108.749
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability