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

using model chemistry: B2PLYP/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 B2PLYP/6-311G*
 hartrees
Energy at 0K-268.186773
Energy at 298.15K-268.193978
HF Energy-267.922082
Nuclear repulsion energy177.567739
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 B2PLYP/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' 3146 3146 27.79      
2 A' 3092 3092 11.31      
3 A' 3081 3081 76.74      
4 A' 3072 3072 18.36      
5 A' 1798 1798 288.80      
6 A' 1552 1552 8.55      
7 A' 1532 1532 3.19      
8 A' 1455 1455 20.06      
9 A' 1420 1420 1.53      
10 A' 1415 1415 3.13      
11 A' 1217 1217 409.36      
12 A' 1152 1152 12.37      
13 A' 1045 1045 18.01      
14 A' 869 869 14.18      
15 A' 794 794 1.60      
16 A' 384 384 5.95      
17 A' 230 230 6.83      
18 A" 3158 3158 46.74      
19 A" 3132 3132 3.24      
20 A" 1520 1520 7.91      
21 A" 1324 1324 1.19      
22 A" 1203 1203 4.53      
23 A" 1039 1039 0.04      
24 A" 823 823 0.51      
25 A" 350 350 21.93      
26 A" 240 240 2.29      
27 A" 65 65 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 20053.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20053.6 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 B2PLYP/6-311G*
ABC
0.59789 0.09640 0.08566

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.179 -0.267 0.000
C2 -0.697 -0.570 0.000
O3 0.000 0.700 0.000
C4 1.338 0.623 0.000
O5 1.990 -0.388 0.000
H6 -2.749 -1.198 0.000
H7 -2.458 0.307 0.885
H8 -2.458 0.307 -0.885
H9 -0.391 -1.135 -0.881
H10 -0.391 -1.135 0.881
H11 1.754 1.638 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51222.38363.62784.17021.09181.09061.09062.17452.17454.3698
C21.51221.44852.35922.69302.14572.15652.15651.09101.09103.2991
O32.38361.44851.34052.26793.34042.64142.64142.07292.07291.9892
C43.62782.35921.34051.20294.47443.91053.91052.61852.61851.0972
O54.17022.69302.26791.20294.80734.58754.58752.64572.64572.0405
H61.09182.14573.34044.47444.80731.76971.76972.51852.51855.3216
H71.09062.15652.64143.91054.58751.76971.76913.07752.52064.5047
H81.09062.15652.64143.91054.58751.76971.76912.52063.07754.5047
H92.17451.09102.07292.61852.64572.51853.07752.52061.76253.6150
H102.17451.09102.07292.61852.64572.51852.52063.07751.76253.6150
H114.36983.29911.98921.09722.04055.32164.50474.50473.61503.6150

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 107.210 C1 C2 H9 112.285
C1 C2 H10 112.285 C2 C1 H6 109.925
C2 C1 H7 110.856 C2 C1 H8 110.856
C2 O3 C4 115.475 O3 C2 H9 108.603
O3 C2 H10 108.603 O3 C4 O5 126.080
O3 C4 H11 108.962 O5 C4 H11 124.959
H6 C1 H7 108.364 H6 C1 H8 108.364
H7 C1 H8 108.397 H9 C2 H10 107.748
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.642      
2 C -0.229      
3 O -0.289      
4 C 0.183      
5 O -0.327      
6 H 0.218      
7 H 0.223      
8 H 0.223      
9 H 0.223      
10 H 0.223      
11 H 0.195      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.913 0.500 0.000 1.977
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.299 4.841 0.000
y 4.841 -29.605 0.000
z 0.000 0.000 -29.498
Traceless
 xyz
x -3.748 4.841 0.000
y 4.841 1.794 0.000
z 0.000 0.000 1.954
Polar
3z2-r23.908
x2-y2-3.695
xy4.841
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.169 0.190 0.000
y 0.190 5.839 0.000
z 0.000 0.000 4.447


<r2> (average value of r2) Å2
<r2> 135.903
(<r2>)1/2 11.658