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

using model chemistry: wB97X-D/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 wB97X-D/6-31G**
 hartrees
Energy at 0K-268.303820
Energy at 298.15K-268.310983
HF Energy-268.303820
Nuclear repulsion energy177.936767
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 wB97X-D/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' 3167 3167 20.01      
2 A' 3086 3086 4.86      
3 A' 3082 3082 76.80      
4 A' 3077 3077 15.91      
5 A' 1868 1868 297.85      
6 A' 1531 1531 7.85      
7 A' 1513 1513 2.39      
8 A' 1449 1449 16.44      
9 A' 1423 1423 2.28      
10 A' 1403 1403 0.84      
11 A' 1274 1274 408.75      
12 A' 1151 1151 12.56      
13 A' 1060 1060 19.43      
14 A' 884 884 10.58      
15 A' 806 806 3.88      
16 A' 389 389 6.72      
17 A' 231 231 7.62      
18 A" 3168 3168 31.66      
19 A" 3134 3134 9.64      
20 A" 1505 1505 6.19      
21 A" 1308 1308 1.08      
22 A" 1190 1190 5.28      
23 A" 1043 1043 0.50      
24 A" 814 814 0.86      
25 A" 346 346 21.64      
26 A" 234 234 2.54      
27 A" 45 45 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 20091.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20091.2 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 wB97X-D/6-31G**
ABC
0.59895 0.09694 0.08613

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.174 -0.276 0.000
C2 -0.690 -0.565 0.000
O3 0.000 0.699 0.000
C4 1.332 0.628 0.000
O5 1.983 -0.384 0.000
H6 -2.732 -1.216 0.000
H7 -2.460 0.295 0.887
H8 -2.460 0.295 -0.887
H9 -0.383 -1.134 -0.883
H10 -0.383 -1.134 0.883
H11 1.751 1.645 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51272.38283.62064.15851.09331.09281.09282.17342.17344.3698
C21.51271.43982.34722.67852.14352.15872.15871.09401.09403.2923
O32.38281.43981.33342.25893.33622.64582.64582.06992.06991.9899
C43.62062.34721.33341.20344.46243.90793.90792.61252.61251.0996
O54.15852.67852.25891.20344.78754.58074.58072.63442.63442.0419
H61.09332.14353.33624.46244.78751.77341.77342.51042.51045.3178
H71.09282.15872.64583.90794.58071.77341.77423.07992.52054.5096
H81.09282.15872.64583.90794.58071.77341.77422.52053.07994.5096
H92.17341.09402.06992.61252.63442.51043.07992.52051.76583.6131
H102.17341.09402.06992.61252.63442.51042.52053.07991.76583.6131
H114.36983.29231.98991.09962.04195.31784.50964.50963.61313.6131

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 107.592 C1 C2 H9 111.981
C1 C2 H10 111.981 C2 C1 H6 109.627
C2 C1 H7 110.866 C2 C1 H8 110.866
C2 O3 C4 115.589 O3 C2 H9 108.793
O3 C2 H10 108.793 O3 C4 O5 125.788
O3 C4 H11 109.373 O5 C4 H11 124.839
H6 C1 H7 108.434 H6 C1 H8 108.434
H7 C1 H8 108.543 H9 C2 H10 107.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C 0.005      
3 O -0.441      
4 C 0.441      
5 O -0.444      
6 H 0.135      
7 H 0.144      
8 H 0.144      
9 H 0.144      
10 H 0.144      
11 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.009 0.566 0.000 2.088
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.468 4.805 0.000
y 4.805 -28.834 0.000
z 0.000 0.000 -28.872
Traceless
 xyz
x -3.615 4.805 0.000
y 4.805 1.837 0.000
z 0.000 0.000 1.779
Polar
3z2-r23.558
x2-y2-3.635
xy4.805
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.859 0.229 0.000
y 0.229 5.618 0.000
z 0.000 0.000 4.281


<r2> (average value of r2) Å2
<r2> 134.893
(<r2>)1/2 11.614