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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-268.140539
Energy at 298.15K-268.147570
HF Energy-268.140539
Nuclear repulsion energy176.442829
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' 3058 3030 20.25      
2 A' 2984 2957 16.57      
3 A' 2982 2955 12.61      
4 A' 2941 2914 77.68      
5 A' 1756 1740 271.62      
6 A' 1467 1454 7.69      
7 A' 1449 1436 2.93      
8 A' 1372 1360 15.69      
9 A' 1345 1332 0.64      
10 A' 1337 1325 2.51      
11 A' 1150 1140 342.73      
12 A' 1099 1089 13.23      
13 A' 1004 995 24.76      
14 A' 828 820 10.88      
15 A' 768 761 1.09      
16 A' 369 365 5.87      
17 A' 219 217 6.09      
18 A" 3064 3036 31.09      
19 A" 3022 2995 9.84      
20 A" 1436 1423 7.89      
21 A" 1250 1239 1.12      
22 A" 1136 1126 4.36      
23 A" 987 978 0.07      
24 A" 783 776 1.36      
25 A" 351 347 18.77      
26 A" 226 224 1.50      
27 A" 42 42 0.65      

Unscaled Zero Point Vibrational Energy (zpe) 19212.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 19037.5 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
0.58727 0.09541 0.08471

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 -0.270 0.000
C2 -0.703 -0.569 0.000
O3 0.000 0.710 0.000
C4 1.348 0.624 0.000
O5 1.999 -0.396 0.000
H6 -2.759 -1.211 0.000
H7 -2.475 0.307 0.892
H8 -2.475 0.307 -0.892
H9 -0.391 -1.140 -0.888
H10 -0.391 -1.140 0.888
H11 1.762 1.654 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51532.39803.64834.18941.10061.09971.09972.18622.18624.3944
C21.51531.45912.37302.70742.15362.16762.16761.10141.10143.3193
O32.39801.45911.35102.28433.36172.66112.66112.08892.08891.9992
C43.64832.37301.35101.21014.49843.93833.93832.63152.63151.1097
O54.18942.70742.28431.21014.82664.61514.61512.65532.65532.0635
H61.10062.15363.36174.49844.82661.78331.78332.53012.53015.3524
H71.09972.16762.66113.93834.61511.78331.78383.09902.53684.5345
H81.09972.16762.66113.93834.61511.78331.78382.53683.09904.5345
H92.18621.10142.08892.63152.65532.53013.09902.53681.77633.6372
H102.18621.10142.08892.63152.65532.53012.53683.09901.77633.6372
H114.39443.31931.99921.10972.06355.35244.53454.53453.63723.6372

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 107.445 C1 C2 H9 112.369
C1 C2 H10 112.369 C2 C1 H6 109.815
C2 C1 H7 110.982 C2 C1 H8 110.982
C2 O3 C4 115.177 O3 C2 H9 108.531
O3 C2 H10 108.531 O3 C4 O5 126.152
O3 C4 H11 108.270 O5 C4 H11 125.578
H6 C1 H7 108.291 H6 C1 H8 108.291
H7 C1 H8 108.393 H9 C2 H10 107.481
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 -0.352      
2 C -0.092      
3 O -0.259      
4 C 0.224      
5 O -0.298      
6 H 0.127      
7 H 0.133      
8 H 0.133      
9 H 0.142      
10 H 0.142      
11 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.946 0.452 0.000 1.998
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.923 4.575 0.000
y 4.575 -29.566 0.000
z 0.000 0.000 -29.490
Traceless
 xyz
x -3.395 4.575 0.000
y 4.575 1.640 0.000
z 0.000 0.000 1.754
Polar
3z2-r23.509
x2-y2-3.357
xy4.575
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.801 0.317 0.000
y 0.317 6.218 0.000
z 0.000 0.000 4.707


<r2> (average value of r2) Å2
<r2> 137.153
(<r2>)1/2 11.711