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All results from a given calculation for C4H6N2 (1H-Imidazole, 2-methyl-)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-265.363600
Energy at 298.15K-265.371140
HF Energy-265.363600
Nuclear repulsion energy 
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 B97D3/6-31G*
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 3572 3502 20.78      
2 A 3230 3167 9.16      
3 A 3198 3135 10.80      
4 A 3109 3048 6.60      
5 A 3032 2973 27.28      
6 A 2982 2923 45.20      
7 A 1565 1534 34.22      
8 A 1504 1475 0.86      
9 A 1485 1456 7.01      
10 A 1481 1452 3.28      
11 A 1415 1387 37.49      
12 A 1408 1381 1.24      
13 A 1367 1341 0.87      
14 A 1258 1233 16.06      
15 A 1168 1145 3.45      
16 A 1117 1095 2.71      
17 A 1085 1064 20.35      
18 A 1050 1029 1.58      
19 A 991 971 10.37      
20 A 950 931 1.37      
21 A 914 896 3.52      
22 A 805 790 13.11      
23 A 689 675 21.36      
24 A 673 660 1.25      
25 A 661 648 12.98      
26 A 624 612 18.31      
27 A 474 465 70.25      
28 A 339 332 4.78      
29 A 238 233 5.77      
30 A 64 63 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 21222.5 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 20806.6 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 B97D3/6-31G*
ABC
0.29350 0.11885 0.08597

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.121 -0.023 0.000
H2 2.518 0.492 0.890
H3 2.499 -1.051 -0.001
H4 2.518 0.494 -0.889
N5 -0.168 1.056 -0.000
H6 0.155 2.016 -0.001
C7 0.626 -0.071 -0.000
N8 -0.121 -1.169 -0.000
C9 -1.435 -0.732 -0.000
H10 -2.262 -1.436 -0.000
C11 -1.493 0.646 0.000
H12 -2.313 1.355 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 N5 H6 C7 N8 C9 H10 C11 H12
C11.10191.09571.10192.53012.83241.49592.51843.62574.60473.67504.6424
H21.10191.78171.77882.88482.94952.16533.24294.23235.22984.11104.9866
H31.09571.78171.78173.39893.86062.11422.62333.94694.77644.33775.3796
H41.10191.77881.78172.88412.94812.16533.24344.23265.23024.11084.9864
N52.53012.88483.39892.88411.01301.37852.22572.19153.25491.38732.1655
H62.83242.94953.86062.94811.01302.13993.19743.17504.21402.14342.5545
C71.49592.16532.11422.16531.37852.13991.32812.16393.19372.23663.2660
N82.51843.24292.62333.24342.22573.19741.32811.38422.15682.27473.3423
C93.62574.23233.94694.23262.19153.17502.16391.38421.08591.37882.2639
H104.60475.22984.77645.23023.25494.21403.19372.15681.08592.21892.7912
C113.67504.11104.33774.11081.38732.14342.23662.27471.37882.21891.0839
H124.64244.98665.37964.98642.16552.55453.26603.34232.26392.79121.0839

picture of 1H-Imidazole, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C7 N5 123.462 C1 C7 N8 126.213
H2 C1 H3 108.304 H2 C1 H4 107.680
H2 C1 C7 112.044 H3 C1 H4 108.306
H3 C1 C7 108.337 H4 C1 C7 112.045
N5 C7 N8 110.326 N5 C11 C9 104.772
N5 C11 H12 122.139 H6 N5 C7 126.093
H6 N5 C11 125.742 C7 N5 C11 108.165
C7 N8 C9 106.085 N8 C9 H10 121.346
N8 C9 C11 110.652 C9 C11 H12 133.089
H10 C9 C11 128.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.545      
2 H 0.165      
3 H 0.197      
4 H 0.165      
5 N -0.577      
6 H 0.325      
7 C 0.472      
8 N -0.457      
9 C -0.040      
10 H 0.135      
11 C 0.012      
12 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.494 3.496 -0.000 3.531
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.329 0.503 -0.001
y 0.503 -33.358 -0.001
z -0.001 -0.001 -37.171
Traceless
 xyz
x 4.936 0.503 -0.001
y 0.503 0.392 -0.001
z -0.001 -0.001 -5.328
Polar
3z2-r2-10.655
x2-y23.030
xy0.503
xz-0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.248 0.118 0.000
y 0.118 8.140 0.000
z 0.000 0.000 4.095


<r2> (average value of r2) Å2
<r2> 140.031
(<r2>)1/2 11.833