All results from a given calculation for HCCCN (Cyanoacetylene)
using model chemistry: MP3/6-31+G**
19 10 17 12 22
States and conformations
| State |
Conformation |
minimum conformation |
conformer description |
state description |
| 1 |
1 |
yes |
C*V |
1Σ |
Energy calculated at MP3/6-31+G**
| | hartrees |
| Energy at 0K | -169.082971 |
| Energy at 298.15K | |
| HF Energy | -168.548590 |
| Nuclear repulsion energy | 76.612675 |
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 MP3/6-31+G**
Geometric Data calculated at MP3/6-31+G**
Point Group is C∞v
Cartesians (Å)
| Atom |
x (Å) |
y (Å) |
z (Å) |
| N1 |
0.000 |
0.000 |
1.911 |
| C2 |
0.000 |
0.000 |
0.749 |
| C3 |
0.000 |
0.000 |
-0.642 |
| C4 |
0.000 |
0.000 |
-1.851 |
| H5 |
0.000 |
0.000 |
-2.913 |
Atom - Atom Distances (Å)
| |
N1 |
C2 |
C3 |
C4 |
H5 |
| N1 | | 1.1614 | 2.5525 | 3.7615 | 4.8240 |
C2 | 1.1614 | | 1.3911 | 2.6001 | 3.6626 | C3 | 2.5525 | 1.3911 | | 1.2090 | 2.2715 | C4 | 3.7615 | 2.6001 | 1.2090 | | 1.0625 | H5 | 4.8240 | 3.6626 | 2.2715 | 1.0625 | |
More geometry information
Calculated Bond Angles
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
| N1 |
C2 |
C3 |
180.000 |
|
C2 |
C3 |
C4 |
180.000 |
| C3 |
C4 |
H5 |
180.000 |
|
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability