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All results from a given calculation for HCOOC2H5 (Ethyl formate)

using model chemistry: CCD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-267.753186
Energy at 298.15K-267.760484
HF Energy-266.898519
Nuclear repulsion energy178.134413
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 CCD/6-311G**
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' 3156 3014 23.85      
2 A' 3100 2961 53.49      
3 A' 3093 2954 25.14      
4 A' 3074 2936 15.21      
5 A' 1877 1793 304.93      
6 A' 1552 1482 7.86      
7 A' 1525 1457 2.18      
8 A' 1467 1402 19.96      
9 A' 1442 1378 1.46      
10 A' 1425 1361 0.76      
11 A' 1269 1212 450.40      
12 A' 1164 1111 8.74      
13 A' 1077 1028 12.68      
14 A' 899 859 11.80      
15 A' 812 776 4.85      
16 A' 393 375 6.00      
17 A' 239 229 6.55      
18 A" 3165 3023 39.06      
19 A" 3136 2995 7.48      
20 A" 1510 1442 5.34      
21 A" 1333 1273 2.09      
22 A" 1212 1157 4.47      
23 A" 1078 1030 0.35      
24 A" 829 791 0.07      
25 A" 343 327 22.09      
26 A" 245 234 2.82      
27 A" 78 74 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 20245.5 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 19336.5 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 CCD/6-311G**
ABC
0.59876 0.09731 0.08643

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.174 -0.268 0.000
C2 -0.685 -0.563 0.000
O3 0.000 0.701 0.000
C4 1.334 0.620 0.000
O5 1.975 -0.390 0.000
H6 -2.737 -1.207 0.000
H7 -2.451 0.306 0.889
H8 -2.451 0.306 -0.889
H9 -0.383 -1.133 -0.884
H10 -0.383 -1.133 0.884
H11 1.758 1.634 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51782.38043.61894.15031.09501.09401.09402.17612.17614.3678
C21.51781.43772.34012.66512.15142.15962.15961.09461.09463.2853
O32.38041.43771.33662.25613.33722.63682.63682.07192.07191.9899
C43.61892.34011.33661.19604.46303.90073.90072.60852.60851.0991
O54.15032.66512.25611.19604.78254.56734.56732.62562.62562.0359
H61.09502.15143.33724.46304.78251.77861.77862.51592.51595.3180
H71.09402.15962.63683.90074.56731.77861.77733.08052.51914.5017
H81.09402.15962.63683.90074.56731.77861.77732.51913.08054.5017
H92.17611.09462.07192.60852.62562.51593.08052.51911.76903.6087
H102.17611.09462.07192.60852.62562.51592.51913.08051.76903.6087
H114.36783.28531.98991.09912.03595.31804.50174.50173.60873.6087

picture of Ethyl formate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.274 C1 C2 H9 111.790
C1 C2 H10 111.790 C2 C1 H6 109.794
C2 C1 H7 110.503 C2 C1 H8 110.503
C2 O3 C4 114.970 O3 C2 H9 109.060
O3 C2 H10 109.060 O3 C4 O5 125.858
O3 C4 H11 109.178 O5 C4 H11 124.964
H6 C1 H7 108.679 H6 C1 H8 108.679
H7 C1 H8 108.635 H9 C2 H10 107.817
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability