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

using model chemistry: MP2/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-71.010690
Energy at 298.15K-71.018321
HF Energy-70.294149
Nuclear repulsion energy134.641217
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/CEP-121G
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' 3093 3018 25.41      
2 A' 3027 2954 12.64      
3 A' 2987 2916 20.69      
4 A' 1794 1751 68.86      
5 A' 1539 1502 5.05      
6 A' 1522 1485 6.00      
7 A' 1457 1422 8.81      
8 A' 1411 1377 2.47      
9 A' 1179 1151 244.25      
10 A' 1134 1106 23.89      
11 A' 1017 993 44.18      
12 A' 882 861 85.52      
13 A' 800 781 274.88      
14 A' 654 639 5.98      
15 A' 510 498 0.75      
16 A' 353 344 0.12      
17 A' 208 203 0.59      
18 A" 3123 3048 48.66      
19 A" 3100 3025 0.41      
20 A" 1511 1475 7.55      
21 A" 1278 1247 0.00      
22 A" 1178 1149 4.79      
23 A" 836 816 0.40      
24 A" 655 640 3.89      
25 A" 229 223 0.81      
26 A" 109 106 3.21      
27 A" 90 88 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 17837.3 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 17409.2 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 MP2/CEP-121G
ABC
0.29858 0.06792 0.05654

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.127 -0.363 0.000
O2 0.000 0.605 0.000
O3 2.282 0.206 0.000
O4 0.846 -1.624 0.000
C5 -1.356 -0.070 0.000
C6 -2.351 1.112 0.000
H7 -1.433 -0.697 0.901
H8 -1.433 -0.697 -0.901
H9 -3.379 0.711 0.000
H10 -2.214 1.735 0.896
H11 -2.214 1.735 -0.896

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.48601.28691.29232.50023.77822.73462.73464.63214.04574.0457
O21.48602.31682.38421.51462.40512.13532.13533.38032.64202.6420
O31.28692.31682.32613.64804.72103.92753.92755.68314.83284.8328
O41.29232.38422.32612.69424.20752.61962.61964.82634.63074.6307
C52.50021.51463.64802.69421.54551.10001.10002.16852.19032.1903
C63.77822.40514.72104.20751.54552.21942.21941.10311.09981.0998
H72.73462.13533.92752.61961.10002.21941.80182.56472.55363.1226
H82.73462.13533.92752.61961.10002.21941.80182.56473.12262.5536
H94.63213.38035.68314.82632.16851.10312.56472.56471.79111.7911
H104.04572.64204.83284.63072.19031.09982.55363.12261.79111.7925
H114.04572.64204.83284.63072.19031.09983.12262.55361.79111.7925

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 112.859 O2 N1 O3 113.140
O2 N1 O4 118.051 O2 C5 C6 103.613
O2 C5 H7 108.472 O2 C5 H8 108.472
O3 N1 O4 128.809 C5 C6 H9 108.765
C5 C6 H10 110.653 C5 C6 H11 110.653
C6 C5 H7 112.976 C6 C5 H8 112.976
H7 C5 H8 109.974 H9 C6 H10 108.786
H9 C6 H11 108.786 H10 C6 H11 109.153
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability