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

using model chemistry: PBEPBE/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 PBEPBE/6-311G*
 hartrees
Energy at 0K-268.132371
Energy at 298.15K-268.139416
HF Energy-268.132371
Nuclear repulsion energy176.469525
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 PBEPBE/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' 3057 3025 24.81      
2 A' 2990 2958 16.18      
3 A' 2983 2952 17.00      
4 A' 2946 2916 85.86      
5 A' 1760 1742 275.60      
6 A' 1483 1468 8.65      
7 A' 1465 1450 3.01      
8 A' 1385 1371 18.14      
9 A' 1355 1341 0.40      
10 A' 1349 1335 3.06      
11 A' 1154 1142 342.01      
12 A' 1106 1095 14.81      
13 A' 1009 998 24.33      
14 A' 831 822 11.09      
15 A' 770 762 1.06      
16 A' 370 366 5.85      
17 A' 219 217 6.14      
18 A" 3064 3032 39.28      
19 A" 3027 2995 8.96      
20 A" 1455 1440 8.87      
21 A" 1265 1252 0.90      
22 A" 1145 1134 4.35      
23 A" 979 969 0.05      
24 A" 788 779 1.24      
25 A" 351 348 18.69      
26 A" 229 226 1.57      
27 A" 50 50 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 19291.7 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 19091.1 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 PBEPBE/6-311G*
ABC
0.58852 0.09536 0.08469

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.189 -0.268 0.000
C2 -0.704 -0.568 0.000
O3 0.000 0.709 0.000
C4 1.348 0.622 0.000
O5 2.000 -0.396 0.000
H6 -2.761 -1.209 0.000
H7 -2.476 0.308 0.891
H8 -2.476 0.308 -0.891
H9 -0.391 -1.139 -0.888
H10 -0.391 -1.139 0.888
H11 1.764 1.651 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51442.39703.64654.19081.10081.09991.09992.18592.18594.3938
C21.51441.45802.37162.70972.15482.16852.16851.10141.10143.3186
O32.39701.45801.35032.28543.36182.66212.66212.08762.08761.9996
C43.64652.37161.35031.20984.49823.93883.93882.62942.62941.1099
O54.19082.70972.28541.20984.83034.61854.61852.65662.65662.0611
H61.10082.15483.36184.49824.83031.78231.78232.53212.53215.3529
H71.09992.16852.66213.93884.61851.78231.78263.09992.53864.5360
H81.09992.16852.66213.93884.61851.78231.78262.53863.09994.5360
H92.18591.10142.08762.62942.65662.53213.09992.53861.77543.6356
H102.18591.10142.08762.62942.65662.53212.53863.09991.77543.6356
H114.39383.31861.99961.10992.06115.35294.53604.53603.63563.6356

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 107.479 C1 C2 H9 112.412
C1 C2 H10 112.412 C2 C1 H6 109.956
C2 C1 H7 111.100 C2 C1 H8 111.100
C2 O3 C4 115.184 O3 C2 H9 108.505
O3 C2 H10 108.505 O3 C4 O5 126.340
O3 C4 H11 108.337 O5 C4 H11 125.322
H6 C1 H7 108.163 H6 C1 H8 108.163
H7 C1 H8 108.256 H9 C2 H10 107.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.657      
2 C -0.268      
3 O -0.238      
4 C 0.140      
5 O -0.296      
6 H 0.223      
7 H 0.228      
8 H 0.228      
9 H 0.228      
10 H 0.228      
11 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.959 0.447 0.000 2.009
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.038 4.583 0.000
y 4.583 -29.602 0.000
z 0.000 0.000 -29.519
Traceless
 xyz
x -3.477 4.583 0.000
y 4.583 1.676 0.000
z 0.000 0.000 1.801
Polar
3z2-r23.603
x2-y2-3.435
xy4.583
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.683 0.294 0.000
y 0.294 6.137 0.000
z 0.000 0.000 4.631


<r2> (average value of r2) Å2
<r2> 137.214
(<r2>)1/2 11.714