All results from a given calculation for C3H4N2 (4H-Imidazole)
using model chemistry: QCISD(T)/aug-cc-pVDZ
19 10 17 12 22
States and conformations
| State |
Conformation |
minimum conformation |
conformer description |
state description |
| 1 |
1 |
yes |
CS |
1A' |
Energy calculated at QCISD(T)/aug-cc-pVDZ
| | hartrees |
| Energy at 0K | -225.635424 |
| Energy at 298.15K | |
| HF Energy | -224.823981 |
| Nuclear repulsion energy | 158.723752 |
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)/aug-cc-pVDZ
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ
Point Group is Cs
Cartesians (Å)
| Atom |
x (Å) |
y (Å) |
z (Å) |
| N1 |
-1.215 |
0.364 |
0.000 |
| C2 |
0.000 |
1.150 |
0.000 |
| N3 |
1.133 |
0.508 |
0.000 |
| C4 |
0.740 |
-0.914 |
0.000 |
| C5 |
-0.773 |
-0.865 |
0.000 |
| H6 |
-0.070 |
2.242 |
0.000 |
| H7 |
1.150 |
-1.422 |
0.894 |
| H8 |
1.150 |
-1.422 |
-0.894 |
| H9 |
-1.452 |
-1.726 |
0.000 |
Atom - Atom Distances (Å)
| |
N1 |
C2 |
N3 |
C4 |
C5 |
H6 |
H7 |
H8 |
H9 |
| N1 | | 1.4471 | 2.3527 | 2.3363 | 1.3066 | 2.1993 | 3.0961 | 3.0961 | 2.1034 |
C2 | 1.4471 | | 1.3019 | 2.1924 | 2.1582 | 1.0941 | 2.9557 | 2.9557 | 3.2214 | N3 | 2.3527 | 1.3019 | | 1.4753 | 2.3494 | 2.1098 | 2.1273 | 2.1273 | 3.4166 | C4 | 2.3363 | 2.1924 | 1.4753 | | 1.5143 | 3.2578 | 1.1068 | 1.1068 | 2.3380 | C5 | 1.3066 | 2.1582 | 2.3494 | 1.5143 | | 3.1855 | 2.1928 | 2.1928 | 1.0962 | H6 | 2.1993 | 1.0941 | 2.1098 | 3.2578 | 3.1855 | | 3.9636 | 3.9636 | 4.2014 | H7 | 3.0961 | 2.9557 | 2.1273 | 1.1068 | 2.1928 | 3.9636 | | 1.7875 | 2.7682 | H8 | 3.0961 | 2.9557 | 2.1273 | 1.1068 | 2.1928 | 3.9636 | 1.7875 | | 2.7682 | H9 | 2.1034 | 3.2214 | 3.4166 | 2.3380 | 1.0962 | 4.2014 | 2.7682 | 2.7682 | |
More geometry information
Calculated Bond Angles
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
| N1 |
C2 |
N3 |
117.604 |
|
N1 |
C2 |
H6 |
119.217 |
| N1 |
C5 |
C4 |
111.624 |
|
N1 |
C5 |
H9 |
121.948 |
| C2 |
N1 |
C5 |
103.091 |
|
C2 |
N3 |
C4 |
104.090 |
| N3 |
C2 |
H6 |
123.179 |
|
N3 |
C4 |
C5 |
103.591 |
| N3 |
C4 |
H7 |
110.129 |
|
N3 |
C4 |
H8 |
110.129 |
| C4 |
C5 |
H9 |
126.428 |
|
C5 |
C4 |
H7 |
112.633 |
| C5 |
C4 |
H8 |
112.633 |
|
H7 |
C4 |
H8 |
107.700 |
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability