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

using model chemistry: B2PLYP=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 B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-226.064196
Energy at 298.15K-226.070136
HF Energy-225.790251
Nuclear repulsion energy163.186158
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 B2PLYP=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' 3690 3690 45.84      
2 A' 3298 3298 3.24      
3 A' 3273 3273 1.95      
4 A' 3268 3268 7.49      
5 A' 1565 1565 12.80      
6 A' 1515 1515 16.25      
7 A' 1457 1457 16.17      
8 A' 1374 1374 7.38      
9 A' 1290 1290 0.64      
10 A' 1170 1170 4.52      
11 A' 1158 1158 2.04      
12 A' 1106 1106 22.23      
13 A' 1084 1084 36.26      
14 A' 949 949 2.18      
15 A' 911 911 8.32      
16 A" 843 843 8.73      
17 A" 800 800 42.70      
18 A" 708 708 33.92      
19 A" 684 684 6.30      
20 A" 647 647 16.60      
21 A" 511 511 99.21      

Unscaled Zero Point Vibrational Energy (zpe) 15649.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15649.8 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 B2PLYP=FULL/6-311G*
ABC
0.32588 0.31285 0.15961

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.105 0.000
C2 -1.089 0.282 0.000
C3 1.119 0.301 0.000
N4 -0.742 -0.986 0.000
C5 0.635 -0.983 0.000
H6 -0.008 2.111 0.000
H7 -2.100 0.660 0.000
H8 2.117 0.705 0.000
H9 1.196 -1.904 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36541.37842.21952.18251.00562.14632.15493.2385
C21.36542.20841.31462.13812.12491.07913.23453.1622
C31.37842.20842.26331.37192.13233.23891.07712.2064
N42.21951.31462.26331.37743.18322.13393.32282.1446
C52.18252.13811.37191.37743.15973.19032.24681.0788
H61.00562.12492.13233.18323.15972.54572.54784.1917
H72.14631.07913.23892.13393.19032.54574.21744.1758
H82.15493.23451.07713.32282.24682.54784.21742.7678
H93.23853.16222.20642.14461.07884.19174.17582.7678

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 111.804 N1 C2 H7 122.367
N1 C3 C5 105.036 N1 C3 H8 122.220
C2 N1 C3 107.196 C2 N1 H6 126.659
C2 N4 C5 105.144 C3 N1 H6 126.145
C3 C5 N4 110.820 C3 C5 H9 127.999
N4 C2 H7 125.829 N4 C5 H9 121.181
C5 C3 H8 132.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability