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

using model chemistry: MP2=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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-358.797218
Energy at 298.15K-358.805266
HF Energy-357.547830
Nuclear repulsion energy252.629168
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 MP2=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' 3230 3036 6.28      
2 A' 3137 2948 8.57      
3 A' 3132 2944 6.26      
4 A' 1870 1757 216.29      
5 A' 1557 1463 3.51      
6 A' 1538 1445 4.73      
7 A' 1448 1361 1.14      
8 A' 1419 1334 17.37      
9 A' 1326 1246 236.08      
10 A' 1175 1105 24.84      
11 A' 1095 1029 68.50      
12 A' 966 908 79.03      
13 A' 895 841 210.55      
14 A' 737 693 6.53      
15 A' 588 553 0.30      
16 A' 391 368 0.70      
17 A' 236 221 0.44      
18 A" 3241 3046 9.97      
19 A" 3199 3007 7.64      
20 A" 1529 1437 6.38      
21 A" 1323 1243 0.65      
22 A" 1207 1134 4.12      
23 A" 844 793 0.28      
24 A" 795 747 10.60      
25 A" 271 255 0.42      
26 A" 137 129 0.97      
27 A" 108 101 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 18695.9 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 17572.3 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 MP2=FULL/6-31G(2df,p)
ABC
0.33331 0.07515 0.06276

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.091 -0.304 0.000
O2 0.000 0.566 0.000
O3 2.147 0.276 0.000
O4 0.855 -1.492 0.000
C5 -1.257 -0.122 0.000
C6 -2.296 0.973 0.000
H7 -1.327 -0.754 0.884
H8 -1.327 -0.754 -0.884
H9 -3.290 0.529 0.000
H10 -2.195 1.598 0.884
H11 -2.195 1.598 -0.884

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.39571.20511.21062.35493.61972.61352.61354.45953.89803.8980
O21.39572.16662.22831.43282.33162.07022.07023.29012.58112.5811
O31.20512.16662.18993.42714.49733.73003.73005.44294.62374.6237
O41.21062.22832.18992.51704.00002.46672.46674.61114.43004.4300
C52.35491.43283.42712.51701.50921.08911.08912.13472.14892.1489
C63.61972.33164.49734.00001.50922.16862.16861.08841.08731.0873
H72.61352.07023.73002.46671.08912.16861.76742.50632.50723.0676
H82.61352.07023.73002.46671.08912.16861.76742.50633.06762.5072
H94.45953.29015.44294.61112.13471.08842.50632.50631.76711.7671
H103.89802.58114.62374.43002.14891.08732.50723.06761.76711.7677
H113.89802.58114.62374.43002.14891.08733.06762.50721.76711.7677

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 112.719 O2 N1 O3 112.618
O2 N1 O4 117.334 O2 C5 C6 104.816
O2 C5 H7 109.598 O2 C5 H8 109.598
O3 N1 O4 130.048 C5 C6 H9 109.466
C5 C6 H10 110.662 C5 C6 H11 110.662
C6 C5 H7 112.145 C6 C5 H8 112.145
H7 C5 H8 108.470 H9 C6 H10 108.621
H9 C6 H11 108.621 H10 C6 H11 108.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability