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

using model chemistry: MP3=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-225.605239
Energy at 298.15K-225.611172
HF Energy-224.831138
Nuclear repulsion energy163.262172
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/6-31+G**
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' 3798 3538 82.16      
2 A' 3385 3154 1.33      
3 A' 3362 3132 0.72      
4 A' 3358 3129 3.78      
5 A' 1620 1510 11.92      
6 A' 1567 1460 29.69      
7 A' 1511 1407 21.72      
8 A' 1421 1324 7.83      
9 A' 1327 1236 1.03      
10 A' 1192 1110 7.89      
11 A' 1188 1107 1.02      
12 A' 1137 1059 17.45      
13 A' 1111 1035 39.83      
14 A' 959 893 2.20      
15 A' 923 860 4.88      
16 A" 842 784 7.46      
17 A" 819 763 54.09      
18 A" 723 673 42.92      
19 A" 675 629 2.73      
20 A" 629 586 22.26      
21 A" 471 439 93.62      

Unscaled Zero Point Vibrational Energy (zpe) 16009.0 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 14914.0 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/6-31+G**
ABC
0.32568 0.31340 0.15971

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.105 0.000
C2 -1.089 0.283 0.000
C3 1.119 0.300 0.000
N4 -0.744 -0.986 0.000
C5 0.637 -0.983 0.000
H6 -0.014 2.107 0.000
H7 -2.095 0.659 0.000
H8 2.115 0.700 0.000
H9 1.198 -1.899 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36431.37802.21882.18281.00222.14192.15313.2335
C21.36432.20781.31442.14002.11741.07443.23053.1600
C31.37802.20782.26341.37102.13223.23391.07282.2006
N42.21881.31442.26341.38053.17742.12873.31822.1453
C52.18282.14001.37101.38053.15763.18742.23961.0738
H61.00222.11742.13223.17743.15762.53532.55154.1848
H72.14191.07443.23392.12873.18742.53534.20994.1694
H82.15313.23051.07283.31822.23962.55154.20992.7556
H93.23353.16002.20062.14531.07384.18484.16942.7556

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 111.835 N1 C2 H7 122.431
N1 C3 C5 105.123 N1 C3 H8 122.435
C2 N1 C3 107.231 C2 N1 H6 126.266
C2 N4 C5 105.113 C3 N1 H6 126.503
C3 C5 N4 110.697 C3 C5 H9 127.931
N4 C2 H7 125.733 N4 C5 H9 121.372
C5 C3 H8 132.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability