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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-268.296244
Energy at 298.15K-268.303423
HF Energy-268.296244
Nuclear repulsion energy177.897238
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' 3168 3005 20.96      
2 A' 3097 2938 39.79      
3 A' 3095 2935 44.46      
4 A' 3083 2924 15.15      
5 A' 1871 1774 300.94      
6 A' 1547 1468 7.71      
7 A' 1530 1452 2.61      
8 A' 1463 1387 17.73      
9 A' 1430 1356 2.11      
10 A' 1417 1344 1.85      
11 A' 1276 1210 408.32      
12 A' 1158 1098 12.52      
13 A' 1064 1009 19.09      
14 A' 887 841 10.85      
15 A' 807 765 3.83      
16 A' 389 369 6.69      
17 A' 232 220 7.61      
18 A" 3171 3008 35.11      
19 A" 3142 2980 7.24      
20 A" 1523 1445 6.61      
21 A" 1318 1250 0.98      
22 A" 1199 1137 5.43      
23 A" 1044 990 0.59      
24 A" 821 779 0.79      
25 A" 348 330 21.76      
26 A" 236 224 2.56      
27 A" 54 51 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 20183.3 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 19143.9 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
0.59981 0.09682 0.08606

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 -2.175 -0.274 0.000
C2 -0.690 -0.566 0.000
O3 0.000 0.697 0.000
C4 1.331 0.628 0.000
O5 1.985 -0.383 0.000
H6 -2.735 -1.215 0.000
H7 -2.460 0.297 0.888
H8 -2.460 0.297 -0.888
H9 -0.385 -1.134 -0.884
H10 -0.385 -1.134 0.884
H11 1.749 1.645 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51352.38263.62094.16191.09431.09371.09372.17412.17414.3686
C21.51351.43962.34772.68162.14522.15982.15981.09421.09423.2920
O32.38261.43961.33322.25983.33722.64552.64552.06942.06941.9892
C43.62092.34771.33321.20334.46433.90773.90772.61312.61311.0995
O54.16192.68162.25981.20334.79284.58344.58342.63832.63832.0410
H61.09432.14523.33724.46434.79281.77521.77522.51242.51245.3183
H71.09372.15982.64553.90774.58341.77521.77573.08132.52104.5075
H81.09372.15982.64553.90774.58341.77521.77572.52103.08134.5075
H92.17411.09422.06942.61312.63832.51243.08132.52101.76763.6131
H102.17411.09422.06942.61312.63832.51242.52103.08131.76763.6131
H114.36863.29201.98921.09952.04105.31834.50754.50753.61313.6131

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 107.551 C1 C2 H9 111.972
C1 C2 H10 111.972 C2 C1 H6 109.649
C2 C1 H7 110.844 C2 C1 H8 110.844
C2 O3 C4 115.657 O3 C2 H9 108.756
O3 C2 H10 108.756 O3 C4 O5 125.902
O3 C4 H11 109.331 O5 C4 H11 124.767
H6 C1 H7 108.449 H6 C1 H8 108.449
H7 C1 H8 108.535 H9 C2 H10 107.753
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 -0.519      
2 C -0.082      
3 O -0.426      
4 C 0.387      
5 O -0.436      
6 H 0.176      
7 H 0.184      
8 H 0.184      
9 H 0.184      
10 H 0.184      
11 H 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.020 0.562 0.000 2.096
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.533 4.811 0.000
y 4.811 -28.822 0.000
z 0.000 0.000 -28.856
Traceless
 xyz
x -3.694 4.811 0.000
y 4.811 1.873 0.000
z 0.000 0.000 1.822
Polar
3z2-r23.643
x2-y2-3.711
xy4.811
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.773 0.216 0.000
y 0.216 5.554 0.000
z 0.000 0.000 4.223


<r2> (average value of r2) Å2
<r2> 134.996
(<r2>)1/2 11.619