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

using model chemistry: B2PLYP/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 B2PLYP/6-311G**
 hartrees
Energy at 0K-268.206009
Energy at 298.15K-268.213212
HF Energy-267.930466
Nuclear repulsion energy177.564363
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 B2PLYP/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' 3140 3140 24.06      
2 A' 3082 3082 10.82      
3 A' 3070 3070 70.73      
4 A' 3065 3065 16.94      
5 A' 1795 1795 284.89      
6 A' 1537 1537 7.84      
7 A' 1516 1516 2.76      
8 A' 1443 1443 18.24      
9 A' 1409 1409 0.49      
10 A' 1407 1407 3.45      
11 A' 1215 1215 410.45      
12 A' 1145 1145 11.27      
13 A' 1043 1043 17.71      
14 A' 867 867 14.02      
15 A' 793 793 1.83      
16 A' 384 384 5.87      
17 A' 230 230 6.68      
18 A" 3151 3151 39.51      
19 A" 3123 3123 5.01      
20 A" 1501 1501 6.84      
21 A" 1312 1312 1.49      
22 A" 1194 1194 4.48      
23 A" 1046 1046 0.05      
24 A" 821 821 0.49      
25 A" 349 349 21.53      
26 A" 239 239 2.22      
27 A" 61 61 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 19967.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19967.7 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 B2PLYP/6-311G**
ABC
0.59664 0.09648 0.08571

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.179 -0.268 0.000
C2 -0.696 -0.569 0.000
O3 0.000 0.701 0.000
C4 1.339 0.624 0.000
O5 1.988 -0.389 0.000
H6 -2.746 -1.201 0.000
H7 -2.456 0.306 0.886
H8 -2.456 0.306 -0.886
H9 -0.390 -1.135 -0.882
H10 -0.390 -1.135 0.882
H11 1.752 1.640 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51302.38433.62874.16811.09221.09101.09102.17442.17444.3696
C21.51301.44882.35902.68982.14482.15602.15601.09151.09153.2982
O32.38431.44881.34112.26703.34022.64052.64052.07422.07421.9883
C43.62872.35901.34111.20294.47373.90983.90982.61972.61971.0973
O54.16812.68982.26701.20294.80264.58414.58412.64392.64392.0429
H61.09222.14483.34024.47374.80261.77181.77182.51592.51595.3204
H71.09102.15602.64053.90984.58411.77181.77123.07702.51864.5029
H81.09102.15602.64053.90984.58411.77181.77122.51863.07704.5029
H92.17441.09152.07422.61972.64392.51593.07702.51861.76403.6157
H102.17441.09152.07422.61972.64392.51592.51863.07701.76403.6157
H114.36963.29821.98831.09732.04295.32044.50294.50293.61573.6157

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 107.206 C1 C2 H9 112.193
C1 C2 H10 112.193 C2 C1 H6 109.776
C2 C1 H7 110.736 C2 C1 H8 110.736
C2 O3 C4 115.414 O3 C2 H9 108.665
O3 C2 H10 108.665 O3 C4 O5 125.942
O3 C4 H11 108.844 O5 C4 H11 125.214
H6 C1 H7 108.501 H6 C1 H8 108.501
H7 C1 H8 108.527 H9 C2 H10 107.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.302      
2 C -0.028      
3 O -0.306      
4 C 0.277      
5 O -0.327      
6 H 0.111      
7 H 0.117      
8 H 0.117      
9 H 0.123      
10 H 0.123      
11 H 0.097      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.890 0.507 0.000 1.956
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.203 4.798 0.000
y 4.798 -29.600 0.000
z 0.000 0.000 -29.470
Traceless
 xyz
x -3.668 4.798 0.000
y 4.798 1.737 0.000
z 0.000 0.000 1.931
Polar
3z2-r23.862
x2-y2-3.603
xy4.798
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.284 0.209 0.000
y 0.209 5.913 0.000
z 0.000 0.000 4.518


<r2> (average value of r2) Å2
<r2> 135.813
(<r2>)1/2 11.654