All results from a given calculation for HCOOC2H5 (Ethyl formate)
using model chemistry: QCISD(T)/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)/cc-pVTZ
| | hartrees |
| Energy at 0K | -267.971991 |
| Energy at 298.15K | |
| HF Energy | -266.928617 |
| Nuclear repulsion energy | 177.747700 |
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)/cc-pVTZ
Geometric Data calculated at QCISD(T)/cc-pVTZ
Point Group is Cs
Cartesians (Å)
| Atom |
x (Å) |
y (Å) |
z (Å) |
| C1 |
-2.174 |
-0.262 |
0.000 |
| C2 |
-0.691 |
-0.560 |
0.000 |
| O3 |
0.000 |
0.712 |
0.000 |
| C4 |
1.339 |
0.617 |
0.000 |
| O5 |
1.974 |
-0.408 |
0.000 |
| H6 |
-2.737 |
-1.197 |
0.000 |
| H7 |
-2.452 |
0.311 |
0.886 |
| H8 |
-2.452 |
0.311 |
-0.886 |
| H9 |
-0.384 |
-1.124 |
-0.882 |
| H10 |
-0.384 |
-1.124 |
0.882 |
| H11 |
1.772 |
1.623 |
0.000 |
Atom - Atom Distances (Å)
| |
C1 |
C2 |
O3 |
C4 |
O5 |
H6 |
H7 |
H8 |
H9 |
H10 |
H11 |
| C1 | | 1.5131 | 2.3821 | 3.6209 | 4.1507 | 1.0916 | 1.0907 | 1.0907 | 2.1737 | 2.1737 | 4.3734 |
C2 | 1.5131 | | 1.4472 | 2.3458 | 2.6691 | 2.1436 | 2.1554 | 2.1554 | 1.0911 | 1.0911 | 3.2911 | O3 | 2.3821 | 1.4472 | | 1.3421 | 2.2696 | 3.3370 | 2.6379 | 2.6379 | 2.0729 | 2.0729 | 1.9929 | C4 | 3.6209 | 2.3458 | 1.3421 | | 1.2057 | 4.4613 | 3.9050 | 3.9050 | 2.6034 | 2.6034 | 1.0957 | O5 | 4.1507 | 2.6691 | 2.2696 | 1.2057 | | 4.7771 | 4.5709 | 4.5709 | 2.6179 | 2.6179 | 2.0409 | H6 | 1.0916 | 2.1436 | 3.3370 | 4.4613 | 4.7771 | | 1.7716 | 1.7716 | 2.5141 | 2.5141 | 5.3187 | H7 | 1.0907 | 2.1554 | 2.6379 | 3.9050 | 4.5709 | 1.7716 | | 1.7713 | 3.0758 | 2.5170 | 4.5114 | H8 | 1.0907 | 2.1554 | 2.6379 | 3.9050 | 4.5709 | 1.7716 | 1.7713 | | 2.5170 | 3.0758 | 4.5114 | H9 | 2.1737 | 1.0911 | 2.0729 | 2.6034 | 2.6179 | 2.5141 | 3.0758 | 2.5170 | | 1.7644 | 3.6023 | H10 | 2.1737 | 1.0911 | 2.0729 | 2.6034 | 2.6179 | 2.5141 | 2.5170 | 3.0758 | 1.7644 | | 3.6023 | H11 | 4.3734 | 3.2911 | 1.9929 | 1.0957 | 2.0409 | 5.3187 | 4.5114 | 4.5114 | 3.6023 | 3.6023 | |
More geometry information
Calculated Bond Angles
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
| C1 |
C2 |
O3 |
107.139 |
|
C1 |
C2 |
H9 |
112.155 |
| C1 |
C2 |
H10 |
112.155 |
|
C2 |
C1 |
H6 |
109.707 |
| C2 |
C1 |
H7 |
110.699 |
|
C2 |
C1 |
H8 |
110.699 |
| C2 |
O3 |
C4 |
114.440 |
|
O3 |
C2 |
H9 |
108.693 |
| O3 |
C2 |
H10 |
108.693 |
|
O3 |
C4 |
O5 |
125.866 |
| O3 |
C4 |
H11 |
109.256 |
|
O5 |
C4 |
H11 |
124.877 |
| H6 |
C1 |
H7 |
108.547 |
|
H6 |
C1 |
H8 |
108.547 |
| H7 |
C1 |
H8 |
108.583 |
|
H9 |
C2 |
H10 |
107.911 |
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability