All results from a given calculation for HCOOC2H5 (Ethyl formate)
using model chemistry: QCISD(T)=FULL/cc-pVTZ
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 QCISD(T)=FULL/cc-pVTZ
| | hartrees |
| Energy at 0K | -268.047669 |
| Energy at 298.15K | |
| HF Energy | -266.929567 |
| Nuclear repulsion energy | 178.358188 |
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 QCISD(T)=FULL/cc-pVTZ
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ
Point Group is Cs
Cartesians (Å)
| Atom |
x (Å) |
y (Å) |
z (Å) |
| C1 |
-2.166 |
-0.261 |
0.000 |
| C2 |
-0.689 |
-0.558 |
0.000 |
| O3 |
0.000 |
0.709 |
0.000 |
| C4 |
1.334 |
0.615 |
0.000 |
| O5 |
1.968 |
-0.407 |
0.000 |
| H6 |
-2.728 |
-1.193 |
0.000 |
| H7 |
-2.442 |
0.310 |
0.883 |
| H8 |
-2.442 |
0.310 |
-0.883 |
| H9 |
-0.387 |
-1.120 |
-0.879 |
| H10 |
-0.387 |
-1.120 |
0.879 |
| H11 |
1.767 |
1.616 |
0.000 |
Atom - Atom Distances (Å)
| |
C1 |
C2 |
O3 |
C4 |
O5 |
H6 |
H7 |
H8 |
H9 |
H10 |
H11 |
| C1 | | 1.5068 | 2.3734 | 3.6083 | 4.1372 | 1.0879 | 1.0871 | 1.0871 | 2.1629 | 2.1629 | 4.3582 |
C2 | 1.5068 | | 1.4416 | 2.3384 | 2.6617 | 2.1352 | 2.1463 | 2.1463 | 1.0867 | 1.0867 | 3.2797 | O3 | 2.3734 | 1.4416 | | 1.3374 | 2.2625 | 3.3250 | 2.6274 | 2.6274 | 2.0659 | 2.0659 | 1.9864 | C4 | 3.6083 | 2.3384 | 1.3374 | | 1.2026 | 4.4458 | 3.8902 | 3.8902 | 2.5973 | 2.5973 | 1.0905 | O5 | 4.1372 | 2.6617 | 2.2625 | 1.2026 | | 4.7613 | 4.5549 | 4.5549 | 2.6133 | 2.6133 | 2.0325 | H6 | 1.0879 | 2.1352 | 3.3250 | 4.4458 | 4.7613 | | 1.7663 | 1.7663 | 2.5015 | 2.5015 | 5.3001 | H7 | 1.0871 | 2.1463 | 2.6274 | 3.8902 | 4.5549 | 1.7663 | | 1.7659 | 3.0621 | 2.5042 | 4.4949 | H8 | 1.0871 | 2.1463 | 2.6274 | 3.8902 | 4.5549 | 1.7663 | 1.7659 | | 2.5042 | 3.0621 | 4.4949 | H9 | 2.1629 | 1.0867 | 2.0659 | 2.5973 | 2.6133 | 2.5015 | 3.0621 | 2.5042 | | 1.7585 | 3.5915 | H10 | 2.1629 | 1.0867 | 2.0659 | 2.5973 | 2.6133 | 2.5015 | 2.5042 | 3.0621 | 1.7585 | | 3.5915 | H11 | 4.3582 | 3.2797 | 1.9864 | 1.0905 | 2.0325 | 5.3001 | 4.4949 | 4.4949 | 3.5915 | 3.5915 | |
More geometry information
Calculated Bond Angles
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
| C1 |
C2 |
O3 |
107.192 |
|
C1 |
C2 |
H9 |
111.999 |
| C1 |
C2 |
H10 |
111.999 |
|
C2 |
C1 |
H6 |
109.701 |
| C2 |
C1 |
H7 |
110.631 |
|
C2 |
C1 |
H8 |
110.631 |
| C2 |
O3 |
C4 |
114.531 |
|
O3 |
C2 |
H9 |
108.779 |
| O3 |
C2 |
H10 |
108.779 |
|
O3 |
C4 |
O5 |
125.850 |
| O3 |
C4 |
H11 |
109.380 |
|
O5 |
C4 |
H11 |
124.770 |
| H6 |
C1 |
H7 |
108.599 |
|
H6 |
C1 |
H8 |
108.599 |
| H7 |
C1 |
H8 |
108.624 |
|
H9 |
C2 |
H10 |
108.010 |
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability