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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-356.199696
Energy at 298.15K-356.207438
HF Energy-355.462261
Nuclear repulsion energy242.107633
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/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' 3180 3014 12.61      
2 A' 3123 2960 7.04      
3 A' 3105 2944 8.73      
4 A' 1709 1620 13.82      
5 A' 1618 1534 4.95      
6 A' 1603 1520 7.56      
7 A' 1499 1421 7.68      
8 A' 1431 1356 3.98      
9 A' 1169 1108 8.81      
10 A' 1093 1036 257.98      
11 A' 1016 963 66.59      
12 A' 923 875 53.04      
13 A' 821 778 168.26      
14 A' 668 633 2.56      
15 A' 509 483 0.12      
16 A' 368 349 1.07      
17 A' 223 211 0.45      
18 A" 3199 3032 25.02      
19 A" 3171 3006 8.30      
20 A" 1591 1508 6.37      
21 A" 1339 1269 0.16      
22 A" 1215 1152 4.20      
23 A" 881 835 1.08      
24 A" 653 619 10.89      
25 A" 263 249 0.59      
26 A" 121 115 1.91      
27 A" 95 91 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 18290.7 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 17339.6 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/3-21G*
ABC
0.30400 0.06975 0.05797

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.125 -0.350 0.000
O2 0.000 0.643 0.000
O3 2.278 0.201 0.000
O4 0.796 -1.586 0.000
C5 -1.307 -0.079 0.000
C6 -2.344 1.051 0.000
H7 -1.384 -0.709 0.889
H8 -1.384 -0.709 -0.889
H9 -3.352 0.625 0.000
H10 -2.219 1.674 0.889
H11 -2.219 1.674 -0.889

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.50041.27791.27992.44673.74142.68602.68604.58194.00824.0082
O21.50042.32082.36761.49342.37952.12952.12953.35242.60312.6031
O31.27792.32082.32203.59604.70013.87693.87695.64644.81514.8151
O41.27992.36762.32202.58704.10102.51252.51254.70064.52864.5286
C52.44671.49343.59602.58701.53451.09201.09202.16322.16692.1669
C63.74142.37954.70014.10101.53452.19332.19331.09461.09231.0923
H72.68602.12953.87692.51251.09202.19331.77782.53812.52463.0878
H82.68602.12953.87692.51251.09202.19331.77782.53813.08782.5246
H94.58193.35245.64644.70062.16321.09462.53812.53811.78181.7818
H104.00822.60314.81514.52862.16691.09232.52463.08781.78181.7778
H114.00822.60314.81514.52862.16691.09233.08782.52461.78181.7778

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 109.621 O2 N1 O3 113.057
O2 N1 O4 116.537 O2 C5 C6 103.593
O2 C5 H7 109.932 O2 C5 H8 109.932
O3 N1 O4 130.406 C5 C6 H9 109.591
C5 C6 H10 110.019 C5 C6 H11 110.019
C6 C5 H7 112.146 C6 C5 H8 112.146
H7 C5 H8 108.983 H9 C6 H10 109.126
H9 C6 H11 109.126 H10 C6 H11 108.937
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability