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

using model chemistry: B97D3/6-31G**

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 B97D3/6-31G**
 hartrees
Energy at 0K-268.229441
Energy at 298.15K-268.236472
HF Energy-268.229441
Nuclear repulsion energy176.251628
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 B97D3/6-31G**
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' 3085 3085 25.74      
2 A' 3013 3013 16.51      
3 A' 3005 3005 17.78      
4 A' 2979 2979 87.50      
5 A' 1775 1775 258.94      
6 A' 1499 1499 5.58      
7 A' 1482 1482 2.23      
8 A' 1405 1405 12.27      
9 A' 1377 1377 0.95      
10 A' 1366 1366 7.63      
11 A' 1169 1169 352.10      
12 A' 1112 1112 11.69      
13 A' 1008 1008 24.37      
14 A' 831 831 13.05      
15 A' 770 770 1.04      
16 A' 372 372 5.53      
17 A' 220 220 6.46      
18 A" 3095 3095 39.65      
19 A" 3057 3057 11.23      
20 A" 1472 1472 4.79      
21 A" 1272 1272 0.59      
22 A" 1157 1157 4.46      
23 A" 998 998 0.09      
24 A" 798 798 0.90      
25 A" 348 348 18.34      
26 A" 228 228 1.61      
27 A" 38 38 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 19464.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19464.7 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 B97D3/6-31G**
ABC
0.58794 0.09499 0.08439

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.194 -0.269 0.000
C2 -0.705 -0.570 0.000
O3 0.000 0.709 0.000
C4 1.348 0.625 0.000
O5 2.006 -0.395 0.000
H6 -2.759 -1.210 0.000
H7 -2.478 0.306 0.890
H8 -2.478 0.306 -0.890
H9 -0.395 -1.139 -0.886
H10 -0.395 -1.139 0.886
H11 1.762 1.651 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51852.40163.65314.20131.09801.09711.09712.18572.18574.3969
C21.51851.46022.37582.71662.15152.16842.16841.09831.09833.3196
O32.40161.46021.35112.28973.36092.66382.66382.08762.08761.9981
C43.65312.37581.35111.21384.49893.94163.94162.63432.63431.1066
O54.20132.71662.28971.21384.83424.62494.62492.66552.66552.0612
H61.09802.15153.36094.49894.83421.78021.78022.52562.52565.3505
H71.09712.16842.66383.94164.62491.78021.78053.09562.53494.5366
H81.09712.16842.66383.94164.62491.78021.78052.53493.09564.5366
H92.18571.09832.08762.63432.66552.52563.09562.53491.77293.6370
H102.18571.09832.08762.63432.66552.52562.53493.09561.77293.6370
H114.39693.31961.99811.10662.06125.35054.53664.53663.63703.6370

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 107.450 C1 C2 H9 112.288
C1 C2 H10 112.288 C2 C1 H6 109.576
C2 C1 H7 110.972 C2 C1 H8 110.972
C2 O3 C4 115.315 O3 C2 H9 108.535
O3 C2 H10 108.535 O3 C4 O5 126.356
O3 C4 H11 108.379 O5 C4 H11 125.265
H6 C1 H7 108.384 H6 C1 H8 108.384
H7 C1 H8 108.476 H9 C2 H10 107.634
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.358      
2 C 0.023      
3 O -0.410      
4 C 0.414      
5 O -0.414      
6 H 0.121      
7 H 0.131      
8 H 0.131      
9 H 0.131      
10 H 0.131      
11 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.047 0.443 0.000 2.094
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.325 4.452 0.000
y 4.452 -29.003 0.000
z 0.000 0.000 -28.911
Traceless
 xyz
x -3.367 4.452 0.000
y 4.452 1.615 0.000
z 0.000 0.000 1.753
Polar
3z2-r23.505
x2-y2-3.322
xy4.452
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.353 0.331 0.000
y 0.331 5.825 0.000
z 0.000 0.000 4.336


<r2> (average value of r2) Å2
<r2> 137.177
(<r2>)1/2 11.712