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

using model chemistry: QCISD/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 QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-358.771227
Energy at 298.15K-358.779263
HF Energy-357.550242
Nuclear repulsion energy252.755162
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(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' 3184 3016 11.31      
2 A' 3122 2958 8.11      
3 A' 3100 2937 8.43      
4 A' 1758 1666 416.68      
5 A' 1554 1472 2.13      
6 A' 1529 1448 4.84      
7 A' 1457 1381 3.04      
8 A' 1432 1357 55.98      
9 A' 1372 1300 210.70      
10 A' 1170 1108 19.26      
11 A' 1085 1028 86.17      
12 A' 981 929 122.02      
13 A' 920 871 66.74      
14 A' 743 704 1.87      
15 A' 591 560 3.40      
16 A' 394 373 2.52      
17 A' 237 224 0.35      
18 A" 3195 3027 21.03      
19 A" 3172 3005 1.91      
20 A" 1516 1436 5.51      
21 A" 1312 1243 0.86      
22 A" 1206 1143 4.10      
23 A" 837 793 0.21      
24 A" 812 769 14.63      
25 A" 258 245 0.43      
26 A" 129 122 0.93      
27 A" 107 101 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 18585.9 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 17608.3 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(2df,p)
ABC
0.33557 0.07483 0.06263

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.095 -0.288 0.000
O2 0.000 0.558 0.000
O3 2.139 0.300 0.000
O4 0.885 -1.477 0.000
C5 -1.262 -0.141 0.000
C6 -2.315 0.951 0.000
H7 -1.323 -0.774 0.887
H8 -1.323 -0.774 -0.887
H9 -3.307 0.496 0.000
H10 -2.220 1.580 0.887
H11 -2.220 1.580 -0.887

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.38401.19791.20672.36143.62792.62092.62094.47143.90683.9068
O21.38402.15412.21871.44252.34782.07622.07623.30772.59942.5994
O31.19792.15412.17433.42894.50063.73133.73135.44924.62804.6280
O41.20672.21872.17432.52824.01622.48102.48104.63274.44584.4458
C52.36141.44253.42892.52821.51691.09091.09092.14212.15982.1598
C63.62792.34784.50064.01621.51692.17812.17811.09191.09121.0912
H72.62092.07623.73132.48101.09092.17811.77312.51672.51853.0802
H82.62092.07623.73132.48101.09092.17811.77312.51673.08022.5185
H94.47143.30775.44924.63272.14211.09192.51672.51671.77311.7731
H103.90682.59944.62804.44582.15981.09122.51853.08021.77311.7736
H113.90682.59944.62804.44582.15981.09123.08022.51851.77311.7736

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 113.312 O2 N1 O3 112.893
O2 N1 O4 117.671 O2 C5 C6 104.967
O2 C5 H7 109.284 O2 C5 H8 109.284
O3 N1 O4 129.436 C5 C6 H9 109.308
C5 C6 H10 110.753 C5 C6 H11 110.753
C6 C5 H7 112.243 C6 C5 H8 112.243
H7 C5 H8 108.713 H9 C6 H10 108.627
H9 C6 H11 108.627 H10 C6 H11 108.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability