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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-359.021248
Energy at 298.15K-359.014123
HF Energy-357.511277
Nuclear repulsion energy256.611447
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 CBS-Q
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' 3287 3287 30.92      
2 A' 3269 3269 4.17      
3 A' 3209 3209 15.79      
4 A' 1904 1904 764.63      
5 A' 1662 1662 5.82      
6 A' 1633 1633 8.86      
7 A' 1607 1607 182.07      
8 A' 1560 1560 110.56      
9 A' 1511 1511 104.40      
10 A' 1247 1247 26.25      
11 A' 1183 1183 284.58      
12 A' 1102 1102 18.75      
13 A' 1003 1003 6.18      
14 A' 840 840 1.77      
15 A' 648 648 16.67      
16 A' 421 421 7.53      
17 A' 250 250 0.53      
18 A" 3336 3336 31.11      
19 A" 3292 3292 9.51      
20 A" 1619 1619 5.05      
21 A" 1416 1416 1.53      
22 A" 1290 1290 6.19      
23 A" 922 922 31.93      
24 A" 883 883 3.14      
25 A" 272 272 0.62      
26 A" 129 129 0.94      
27 A" 109 109 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 19801.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19801.7 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 CBS-Q
ABC
0.33007 0.07375 0.06169

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.086 -0.254 0.000
O2 0.000 0.505 0.000
O3 2.090 0.349 0.000
O4 0.944 -1.427 0.000
C5 -1.266 -0.179 0.000
C6 -2.315 0.915 0.000
H7 -1.322 -0.804 0.882
H8 -1.322 -0.804 -0.882
H9 -3.303 0.461 0.000
H10 -2.222 1.541 0.882
H11 -2.222 1.541 -0.882

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.32521.17151.18112.35373.59672.62272.62274.44753.86603.8660
O21.32522.09622.15021.43912.35122.05882.05883.30372.60572.6057
O31.17152.09622.11373.39794.44183.70833.70835.39504.56044.5604
O41.18112.15022.11372.53834.01322.50992.50994.64814.42844.4284
C52.35371.43913.39792.53831.51531.08231.08232.13532.15632.1563
C63.59672.35124.44184.01321.51532.17222.17221.08741.08591.0859
H72.62272.05883.70832.50991.08232.17221.76322.51082.51203.0694
H82.62272.05883.70832.50991.08232.17221.76322.51083.06942.5120
H94.44753.30375.39504.64812.13531.08742.51082.51081.76461.7646
H103.86602.60574.56044.42842.15631.08592.51203.06941.76461.7646
H113.86602.60574.56044.42842.15631.08593.06942.51201.76461.7646

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 116.675 O2 N1 O3 114.050
O2 N1 O4 118.044 O2 C5 C6 105.437
O2 C5 H7 108.651 O2 C5 H8 108.651
O3 N1 O4 127.905 C5 C6 H9 109.148
C5 C6 H10 110.906 C5 C6 H11 110.906
C6 C5 H7 112.419 C6 C5 H8 112.419
H7 C5 H8 109.088 H9 C6 H10 108.571
H9 C6 H11 108.571 H10 C6 H11 108.677
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability