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

using model chemistry: TPSSh/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 TPSSh/6-311G**
 hartrees
Energy at 0K-268.464942
Energy at 298.15K-268.472057
HF Energy-268.464942
Nuclear repulsion energy177.277233
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 TPSSh/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' 3111 3111 29.19      
2 A' 3056 3056 12.43      
3 A' 3040 3040 16.94      
4 A' 3035 3035 77.12      
5 A' 1791 1791 299.41      
6 A' 1529 1529 6.41      
7 A' 1512 1512 2.49      
8 A' 1429 1429 12.67      
9 A' 1397 1397 0.65      
10 A' 1390 1390 5.84      
11 A' 1192 1192 388.67      
12 A' 1132 1132 14.39      
13 A' 1025 1025 21.92      
14 A' 851 851 15.04      
15 A' 782 782 1.11      
16 A' 371 371 6.21      
17 A' 220 220 6.67      
18 A" 3123 3123 47.21      
19 A" 3094 3094 4.45      
20 A" 1499 1499 6.29      
21 A" 1294 1294 1.32      
22 A" 1179 1179 4.47      
23 A" 1032 1032 0.00      
24 A" 803 803 0.66      
25 A" 352 352 21.48      
26 A" 230 230 1.80      
27 A" 49 49 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 19757.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19757.9 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 TPSSh/6-311G**
ABC
0.59238 0.09632 0.08550

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.181 -0.274 0.000
C2 -0.696 -0.573 0.000
O3 0.000 0.706 0.000
C4 1.341 0.628 0.000
O5 1.987 -0.388 0.000
H6 -2.745 -1.211 0.000
H7 -2.461 0.299 0.887
H8 -2.461 0.299 -0.887
H9 -0.384 -1.134 -0.884
H10 -0.384 -1.134 0.884
H11 1.755 1.646 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51472.39083.63544.16991.09371.09251.09252.17962.17964.3790
C21.51471.45582.36452.68982.14582.15932.15931.09281.09283.3061
O32.39081.45581.34302.26843.34782.64752.64752.07722.07721.9908
C43.63542.36451.34301.20424.48043.91793.91792.61962.61961.0990
O54.16992.68982.26841.20424.80334.58784.58782.63872.63872.0471
H61.09372.14583.34784.48044.80331.77411.77412.52202.52205.3300
H71.09252.15932.64753.91794.58781.77411.77413.08312.52364.5139
H81.09252.15932.64753.91794.58781.77411.77412.52363.08314.5139
H92.17961.09282.07722.61962.63872.52203.08312.52361.76833.6175
H102.17961.09282.07722.61962.63872.52202.52363.08311.76833.6175
H114.37903.30611.99081.09902.04715.33004.51394.51393.61753.6175

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 107.176 C1 C2 H9 112.412
C1 C2 H10 112.412 C2 C1 H6 109.648
C2 C1 H7 110.791 C2 C1 H8 110.791
C2 O3 C4 115.246 O3 C2 H9 108.340
O3 C2 H10 108.340 O3 C4 O5 125.796
O3 C4 H11 108.812 O5 C4 H11 125.392
H6 C1 H7 108.488 H6 C1 H8 108.488
H7 C1 H8 108.569 H9 C2 H10 108.017
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.312      
2 C -0.045      
3 O -0.315      
4 C 0.296      
5 O -0.345      
6 H 0.115      
7 H 0.121      
8 H 0.121      
9 H 0.133      
10 H 0.133      
11 H 0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.963 0.503 0.000 2.026
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.456 0.256 0.000
y 0.256 6.000 0.000
z 0.000 0.000 4.567


<r2> (average value of r2) Å2
<r2> 135.891
(<r2>)1/2 11.657