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All results from a given calculation for C3H4N2 (1H-Imidazole)

using model chemistry: MP3=FULL/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-311G**
 hartrees
Energy at 0K-225.739692
Energy at 298.15K-225.745685
HF Energy-224.868054
Nuclear repulsion energy163.371193
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=FULL/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3769 3769 77.33      
2 A' 3340 3340 1.63      
3 A' 3312 3312 0.62      
4 A' 3309 3309 5.30      
5 A' 1606 1606 13.42      
6 A' 1555 1555 23.61      
7 A' 1500 1500 17.18      
8 A' 1403 1403 7.02      
9 A' 1310 1310 0.70      
10 A' 1192 1192 7.66      
11 A' 1175 1175 1.49      
12 A' 1122 1122 19.06      
13 A' 1103 1103 34.07      
14 A' 959 959 2.00      
15 A' 923 923 6.46      
16 A" 862 862 1.99      
17 A" 839 839 37.40      
18 A" 736 736 37.65      
19 A" 685 685 4.19      
20 A" 644 644 16.74      
21 A" 498 498 93.88      

Unscaled Zero Point Vibrational Energy (zpe) 15920.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15920.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP3=FULL/6-311G**
ABC
0.32677 0.31336 0.15996

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.107 0.000
C2 -1.085 0.279 0.000
C3 1.119 0.301 0.000
N4 -0.746 -0.985 0.000
C5 0.636 -0.984 0.000
H6 -0.012 2.110 0.000
H7 -2.096 0.660 0.000
H8 2.119 0.703 0.000
H9 1.197 -1.905 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36461.37892.22032.18501.00312.14342.15703.2411
C21.36462.20421.30882.13472.12151.08053.23193.1593
C31.37892.20422.26481.37252.13363.23521.07772.2074
N42.22031.30882.26481.38153.18002.12823.32462.1500
C52.18502.13471.37251.38153.16073.18852.24581.0790
H61.00312.12152.13363.18003.16072.53852.55394.1932
H72.14341.08053.23522.12823.18852.53854.21544.1746
H82.15703.23191.07773.32462.24582.55394.21542.7660
H93.24113.15932.20742.15001.07904.19324.17462.7660

picture of 1H-Imidazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 N4 112.290 N1 C2 H7 122.049
N1 C3 C5 105.153 N1 C3 H8 122.341
C2 N1 C3 106.915 C2 N1 H6 126.604
C2 N4 C5 104.996 C3 N1 H6 126.481
C3 C5 N4 110.646 C3 C5 H9 128.036
N4 C2 H7 125.661 N4 C5 H9 121.318
C5 C3 H8 132.506
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability