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

using model chemistry: TPSSh/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-268.502945
Energy at 298.15K-268.510047
HF Energy-268.502945
Nuclear repulsion energy177.439735
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/Def2TZVPP
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' 3107 3107 23.94      
2 A' 3054 3054 11.08      
3 A' 3039 3039 15.54      
4 A' 3030 3030 64.57      
5 A' 1777 1777 312.14      
6 A' 1524 1524 6.62      
7 A' 1507 1507 2.18      
8 A' 1425 1425 9.41      
9 A' 1397 1397 0.71      
10 A' 1390 1390 6.47      
11 A' 1194 1194 387.27      
12 A' 1130 1130 11.29      
13 A' 1023 1023 23.63      
14 A' 846 846 14.25      
15 A' 779 779 0.97      
16 A' 370 370 5.45      
17 A' 217 217 7.00      
18 A" 3120 3120 38.73      
19 A" 3091 3091 2.43      
20 A" 1496 1496 5.60      
21 A" 1292 1292 1.28      
22 A" 1177 1177 3.92      
23 A" 1032 1032 0.05      
24 A" 801 801 0.68      
25 A" 348 348 19.67      
26 A" 228 228 1.77      
27 A" 54 54 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 19724.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19724.2 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/Def2TZVPP
ABC
0.59502 0.09632 0.08555

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.180 -0.281 0.000
C2 -0.696 -0.572 0.000
O3 0.000 0.705 0.000
C4 1.337 0.631 0.000
O5 1.989 -0.381 0.000
H6 -2.734 -1.222 0.000
H7 -2.467 0.287 0.886
H8 -2.467 0.287 -0.886
H9 -0.382 -1.131 -0.883
H10 -0.382 -1.131 0.883
H11 1.754 1.647 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51172.39263.63364.16951.09221.09111.09112.17532.17534.3810
C21.51171.45452.36282.69162.13922.15832.15831.09121.09123.3056
O32.39261.45451.33942.26583.34532.65442.65442.07312.07311.9909
C43.63362.36281.33941.20344.47363.92133.92132.61592.61591.0981
O54.16952.69162.26581.20344.79724.59164.59162.63902.63902.0415
H61.09222.13923.34534.47364.79721.77051.77052.51372.51375.3270
H71.09112.15832.65443.92134.59161.77051.77203.07992.52124.5222
H81.09112.15832.65443.92134.59161.77051.77202.52123.07994.5222
H92.17531.09122.07312.61592.63902.51373.07992.52121.76583.6142
H102.17531.09122.07312.61592.63902.51372.52123.07991.76583.6142
H114.38103.30561.99091.09812.04155.32704.52224.52223.61423.6142

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 107.518 C1 C2 H9 112.376
C1 C2 H10 112.376 C2 C1 H6 109.427
C2 C1 H7 111.004 C2 C1 H8 111.004
C2 O3 C4 115.432 O3 C2 H9 108.201
O3 C2 H10 108.201 O3 C4 O5 125.927
O3 C4 H11 109.125 O5 C4 H11 124.948
H6 C1 H7 108.372 H6 C1 H8 108.372
H7 C1 H8 108.583 H9 C2 H10 108.018
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.130      
2 C 0.074      
3 O -0.227      
4 C 0.230      
5 O -0.307      
6 H 0.047      
7 H 0.056      
8 H 0.056      
9 H 0.069      
10 H 0.069      
11 H 0.063      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.108 0.540 0.000 2.176
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 8.190 0.269 0.000
y 0.269 6.544 0.000
z 0.000 0.000 5.153


<r2> (average value of r2) Å2
<r2> 135.959
(<r2>)1/2 11.660