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

using model chemistry: B97D3/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-268.243513
Energy at 298.15K-268.250531
HF Energy-268.243513
Nuclear repulsion energy176.624381
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(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' 3076 3076 23.47      
2 A' 3001 3001 16.86      
3 A' 2996 2996 16.87      
4 A' 2955 2955 82.51      
5 A' 1771 1771 252.83      
6 A' 1486 1486 5.94      
7 A' 1467 1467 2.24      
8 A' 1389 1389 9.52      
9 A' 1372 1372 1.11      
10 A' 1361 1361 6.52      
11 A' 1160 1160 340.84      
12 A' 1106 1106 10.55      
13 A' 1005 1005 24.31      
14 A' 828 828 11.98      
15 A' 769 769 0.98      
16 A' 370 370 5.11      
17 A' 220 220 6.02      
18 A" 3083 3083 35.89      
19 A" 3043 3043 9.79      
20 A" 1458 1458 4.24      
21 A" 1265 1265 0.90      
22 A" 1154 1154 3.95      
23 A" 1006 1006 0.07      
24 A" 792 792 0.80      
25 A" 345 345 16.32      
26 A" 222 222 1.33      
27 A" 37 37 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 19367.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19367.1 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(2df,p)
ABC
0.59119 0.09533 0.08471

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.191 -0.274 0.000
C2 -0.701 -0.569 0.000
O3 0.000 0.707 0.000
C4 1.345 0.625 0.000
O5 2.002 -0.389 0.000
H6 -2.753 -1.217 0.000
H7 -2.477 0.300 0.890
H8 -2.477 0.300 -0.890
H9 -0.390 -1.138 -0.886
H10 -0.390 -1.138 0.886
H11 1.754 1.653 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51902.40043.64824.19391.09771.09701.09702.18542.18544.3899
C21.51901.45612.36872.70842.15152.16842.16841.09821.09823.3111
O32.40041.45611.34772.28213.35832.66322.66322.08432.08431.9925
C43.64822.36871.34771.20754.49233.93763.93762.62762.62761.1070
O54.19392.70842.28211.20754.82564.61774.61772.65832.65832.0574
H61.09772.15153.35834.49234.82561.78031.78032.52452.52455.3425
H71.09702.16842.66323.93764.61771.78031.78023.09512.53474.5298
H81.09702.16842.66323.93764.61771.78031.78022.53473.09514.5298
H92.18541.09822.08432.62762.65832.52453.09512.53471.77223.6297
H102.18541.09822.08432.62762.65832.52452.53473.09511.77223.6297
H114.38993.31111.99251.10702.05745.34254.52984.52983.62973.6297

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 107.558 C1 C2 H9 112.241
C1 C2 H10 112.241 C2 C1 H6 109.567
C2 C1 H7 110.944 C2 C1 H8 110.944
C2 O3 C4 115.251 O3 C2 H9 108.560
O3 C2 H10 108.560 O3 C4 O5 126.451
O3 C4 H11 108.131 O5 C4 H11 125.418
H6 C1 H7 108.425 H6 C1 H8 108.425
H7 C1 H8 108.462 H9 C2 H10 107.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C -0.046      
3 O -0.212      
4 C 0.192      
5 O -0.304      
6 H 0.129      
7 H 0.136      
8 H 0.136      
9 H 0.130      
10 H 0.130      
11 H 0.106      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.021 0.464 0.000 2.074
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.349 4.243 0.000
y 4.243 -28.885 0.000
z 0.000 0.000 -28.771
Traceless
 xyz
x -3.521 4.243 0.000
y 4.243 1.675 0.000
z 0.000 0.000 1.846
Polar
3z2-r23.692
x2-y2-3.464
xy4.243
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.638 0.398 0.000
y 0.398 5.992 0.000
z 0.000 0.000 4.625


<r2> (average value of r2) Å2
<r2> 136.701
(<r2>)1/2 11.692