All results from a given calculation for CH3CCH (propyne)
using model chemistry: CCSD/daug-cc-pVTZ
19 10 17 12 22
States and conformations
| State |
Conformation |
minimum conformation |
conformer description |
state description |
| 1 |
1 |
yes |
C3V |
1A' |
Energy calculated at CCSD/daug-cc-pVTZ
| | hartrees |
| Energy at 0K | -116.419240 |
| Energy at 298.15K | |
| HF Energy | -115.909373 |
| Nuclear repulsion energy | 58.686278 |
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 CCSD/daug-cc-pVTZ
Geometric Data calculated at CCSD/daug-cc-pVTZ
Point Group is C3v
Cartesians (Å)
| Atom |
x (Å) |
y (Å) |
z (Å) |
| C1 |
0.000 |
0.000 |
-1.245 |
| C2 |
0.000 |
0.000 |
0.220 |
| C3 |
0.000 |
0.000 |
1.424 |
| H4 |
0.000 |
0.000 |
2.487 |
| H5 |
0.000 |
1.020 |
-1.628 |
| H6 |
0.883 |
-0.510 |
-1.628 |
| H7 |
-0.883 |
-0.510 |
-1.628 |
Atom - Atom Distances (Å)
| |
C1 |
C2 |
C3 |
H4 |
H5 |
H6 |
H7 |
| C1 | | 1.4642 | 2.6691 | 3.7313 | 1.0897 | 1.0897 | 1.0897 |
C2 | 1.4642 | | 1.2049 | 2.2671 | 2.1105 | 2.1105 | 2.1105 | C3 | 2.6691 | 1.2049 | | 1.0622 | 3.2184 | 3.2184 | 3.2184 | H4 | 3.7313 | 2.2671 | 1.0622 | | 4.2392 | 4.2392 | 4.2392 | H5 | 1.0897 | 2.1105 | 3.2184 | 4.2392 | | 1.7668 | 1.7668 | H6 | 1.0897 | 2.1105 | 3.2184 | 4.2392 | 1.7668 | | 1.7668 | H7 | 1.0897 | 2.1105 | 3.2184 | 4.2392 | 1.7668 | 1.7668 | |
More geometry information
Calculated Bond Angles
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
| C1 |
C2 |
C3 |
180.000 |
|
C2 |
C1 |
H5 |
110.598 |
| C2 |
C1 |
H6 |
110.598 |
|
C2 |
C1 |
H7 |
110.598 |
| C2 |
C3 |
H4 |
180.000 |
|
H5 |
C1 |
H6 |
108.322 |
| H5 |
C1 |
H7 |
108.322 |
|
H6 |
C1 |
H7 |
108.322 |
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability