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

using model chemistry: B97D3/6-311+G(3df,2p)

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 B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-268.324468
Energy at 298.15K-268.331505
HF Energy-268.324468
Nuclear repulsion energy176.680524
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 B97D3/6-311+G(3df,2p)
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' 3056 3016 24.62      
2 A' 2997 2958 13.86      
3 A' 2986 2947 18.06      
4 A' 2957 2919 71.90      
5 A' 1743 1721 319.00      
6 A' 1485 1466 7.28      
7 A' 1469 1450 2.38      
8 A' 1391 1373 9.68      
9 A' 1367 1349 0.28      
10 A' 1360 1342 6.53      
11 A' 1149 1134 364.32      
12 A' 1104 1090 12.72      
13 A' 997 984 28.39      
14 A' 822 812 14.63      
15 A' 764 755 0.30      
16 A' 371 366 4.69      
17 A' 219 216 6.67      
18 A" 3067 3027 39.60      
19 A" 3035 2995 3.93      
20 A" 1459 1440 6.19      
21 A" 1268 1251 1.08      
22 A" 1149 1134 3.53      
23 A" 1001 988 0.04      
24 A" 795 785 0.76      
25 A" 342 337 18.77      
26 A" 221 218 1.77      
27 A" 46 45 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 19310.2 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 19059.2 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 B97D3/6-311+G(3df,2p)
ABC
0.59612 0.09497 0.08452

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.191 -0.284 0.000
C2 -0.705 -0.576 0.000
O3 0.000 0.702 0.000
C4 1.343 0.633 0.000
O5 2.008 -0.372 0.000
H6 -2.747 -1.227 0.000
H7 -2.481 0.286 0.888
H8 -2.481 0.286 -0.888
H9 -0.393 -1.139 -0.885
H10 -0.393 -1.139 0.885
H11 1.748 1.660 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51442.40253.65134.20051.09481.09381.09382.17932.17934.3928
C21.51441.45962.37872.72132.14322.16432.16431.09451.09453.3195
O32.40251.45961.34492.27763.35652.66762.66762.08022.08021.9936
C43.65132.37871.34491.20564.49343.94113.94112.63412.63411.1037
O54.20052.72132.27761.20564.83194.62334.62332.67152.67152.0485
H61.09482.14323.35654.49344.83191.77391.77392.51682.51685.3425
H71.09382.16432.66763.94114.62331.77391.77573.08772.52814.5346
H81.09382.16432.66763.94114.62331.77391.77572.52813.08774.5346
H92.17931.09452.08022.63412.67152.51683.08772.52811.76963.6336
H102.17931.09452.08022.63412.67152.51682.52813.08771.76963.6336
H114.39283.31951.99361.10372.04855.34254.53464.53463.63363.6336

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 107.755 C1 C2 H9 112.305
C1 C2 H10 112.305 C2 C1 H6 109.392
C2 C1 H7 111.127 C2 C1 H8 111.127
C2 O3 C4 115.968 O3 C2 H9 108.221
O3 C2 H10 108.221 O3 C4 O5 126.417
O3 C4 H11 108.618 O5 C4 H11 124.965
H6 C1 H7 108.289 H6 C1 H8 108.289
H7 C1 H8 108.531 H9 C2 H10 107.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.391      
2 C 0.139      
3 O -0.502      
4 C 0.597      
5 O -0.581      
6 H 0.122      
7 H 0.124      
8 H 0.124      
9 H 0.128      
10 H 0.128      
11 H 0.111      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.189 0.472 0.000 2.240
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.489 4.759 0.000
y 4.759 -29.738 0.000
z 0.000 0.000 -29.546
Traceless
 xyz
x -3.847 4.759 0.000
y 4.759 1.779 0.000
z 0.000 0.000 2.068
Polar
3z2-r24.135
x2-y2-3.751
xy4.759
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.869 0.269 0.000
y 0.269 7.006 0.000
z 0.000 0.000 5.518


<r2> (average value of r2) Å2
<r2> 137.512
(<r2>)1/2 11.727