All results from a given calculation for HCOOC2H5 (Ethyl formate)
using model chemistry: QCISD/6-31+G**
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/6-31+G**
| | hartrees |
| Energy at 0K | -267.669117 |
| Energy at 298.15K | |
| HF Energy | -266.842620 |
| Nuclear repulsion energy | 177.090503 |
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/6-31+G**
Geometric Data calculated at QCISD/6-31+G**
Point Group is Cs
Cartesians (Å)
| Atom |
x (Å) |
y (Å) |
z (Å) |
| C1 |
-2.183 |
-0.258 |
0.000 |
| C2 |
-0.701 |
-0.568 |
0.000 |
| O3 |
0.000 |
0.704 |
0.000 |
| C4 |
1.343 |
0.623 |
0.000 |
| O5 |
1.991 |
-0.404 |
0.000 |
| H6 |
-2.751 |
-1.190 |
0.000 |
| H7 |
-2.456 |
0.316 |
0.886 |
| H8 |
-2.456 |
0.316 |
-0.886 |
| H9 |
-0.397 |
-1.130 |
-0.884 |
| H10 |
-0.397 |
-1.130 |
0.884 |
| H11 |
1.771 |
1.629 |
0.000 |
Atom - Atom Distances (Å)
| |
C1 |
C2 |
O3 |
C4 |
O5 |
H6 |
H7 |
H8 |
H9 |
H10 |
H11 |
| C1 | | 1.5137 | 2.3854 | 3.6343 | 4.1769 | 1.0915 | 1.0901 | 1.0901 | 2.1747 | 2.1747 | 4.3807 |
C2 | 1.5137 | | 1.4526 | 2.3657 | 2.6977 | 2.1418 | 2.1553 | 2.1553 | 1.0904 | 1.0904 | 3.3070 | O3 | 2.3854 | 1.4526 | | 1.3458 | 2.2792 | 3.3398 | 2.6399 | 2.6399 | 2.0742 | 2.0742 | 1.9976 | C4 | 3.6343 | 2.3657 | 1.3458 | | 1.2140 | 4.4771 | 3.9135 | 3.9135 | 2.6230 | 2.6230 | 1.0935 | O5 | 4.1769 | 2.6977 | 2.2792 | 1.2140 | | 4.8069 | 4.5919 | 4.5919 | 2.6483 | 2.6483 | 2.0449 | H6 | 1.0915 | 2.1418 | 3.3398 | 4.4771 | 4.8069 | | 1.7713 | 1.7713 | 2.5145 | 2.5145 | 5.3281 | H7 | 1.0901 | 2.1553 | 2.6399 | 3.9135 | 4.5919 | 1.7713 | | 1.7719 | 3.0756 | 2.5156 | 4.5142 | H8 | 1.0901 | 2.1553 | 2.6399 | 3.9135 | 4.5919 | 1.7713 | 1.7719 | | 2.5156 | 3.0756 | 4.5142 | H9 | 2.1747 | 1.0904 | 2.0742 | 2.6230 | 2.6483 | 2.5145 | 3.0756 | 2.5156 | | 1.7673 | 3.6182 | H10 | 2.1747 | 1.0904 | 2.0742 | 2.6230 | 2.6483 | 2.5145 | 2.5156 | 3.0756 | 1.7673 | | 3.6182 | H11 | 4.3807 | 3.3070 | 1.9976 | 1.0935 | 2.0449 | 5.3281 | 4.5142 | 4.5142 | 3.6182 | 3.6182 | |
More geometry information
Calculated Bond Angles
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
| C1 |
C2 |
O3 |
107.042 |
|
C1 |
C2 |
H9 |
112.235 |
| C1 |
C2 |
H10 |
112.235 |
|
C2 |
C1 |
H6 |
109.530 |
| C2 |
C1 |
H7 |
110.686 |
|
C2 |
C1 |
H8 |
110.686 |
| C2 |
O3 |
C4 |
115.373 |
|
O3 |
C2 |
H9 |
108.467 |
| O3 |
C2 |
H10 |
108.467 |
|
O3 |
C4 |
O5 |
125.764 |
| O3 |
C4 |
H11 |
109.526 |
|
O5 |
C4 |
H11 |
124.711 |
| H6 |
C1 |
H7 |
108.577 |
|
H6 |
C1 |
H8 |
108.577 |
| H7 |
C1 |
H8 |
108.728 |
|
H9 |
C2 |
H10 |
108.268 |
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability