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

using model chemistry: LSDA/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 LSDA/cc-pVDZ
 hartrees
Energy at 0K-264.090979
Energy at 298.15K-264.098665
Nuclear repulsion energy225.214965
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 LSDA/cc-pVDZ
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 3544 3506 42.69      
2 A 3212 3177 0.36      
3 A 3175 3140 3.90      
4 A 3104 3070 0.42      
5 A 3040 3007 7.70      
6 A 2970 2938 25.39      
7 A 1588 1570 38.69      
8 A 1506 1489 1.16      
9 A 1466 1450 14.17      
10 A 1402 1386 1.35      
11 A 1379 1364 10.50      
12 A 1365 1350 25.76      
13 A 1325 1310 1.97      
14 A 1260 1246 11.61      
15 A 1176 1163 3.81      
16 A 1102 1090 8.30      
17 A 1069 1057 27.60      
18 A 995 984 2.91      
19 A 971 961 9.28      
20 A 919 909 0.33      
21 A 901 891 3.26      
22 A 824 815 7.89      
23 A 697 689 30.77      
24 A 684 676 1.41      
25 A 680 672 10.52      
26 A 638 630 14.50      
27 A 544 538 59.12      
28 A 334 330 5.17      
29 A 246 243 5.04      
30 A 88 87 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 21101.3 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 20869.2 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 LSDA/cc-pVDZ
ABC
0.29665 0.12127 0.08753

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.096 -0.023 0.000
H2 2.506 0.488 0.897
H3 2.464 -1.066 -0.001
H4 2.506 0.490 -0.896
N5 -0.167 1.047 0.000
H6 0.160 2.015 -0.000
C7 0.621 -0.066 -0.000
N8 -0.120 -1.159 0.000
C9 -1.417 -0.731 0.000
H10 -2.256 -1.439 0.000
C11 -1.476 0.643 -0.000
H12 -2.309 1.353 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 N5 H6 C7 N8 C9 H10 C11 H12
C11.11101.10581.11102.50352.81131.47562.48973.58374.57613.63384.6153
H21.11101.79501.79332.87482.94022.16013.22674.20525.21474.08534.9743
H31.10581.79501.79513.37483.84742.09692.58553.89574.73444.29495.3514
H41.11101.79331.79512.87432.93872.16013.22744.20565.21534.08514.9739
N52.50352.87483.37482.87431.02151.36412.20652.17403.24741.37032.1639
H62.81132.94023.84742.93871.02152.13173.18613.16704.21522.13552.5562
C71.47562.16012.09692.16011.36412.13171.32012.14403.18762.21383.2559
N82.48973.22672.58553.22742.20653.18611.32011.36602.15422.25513.3323
C93.58374.20523.89574.20562.17403.16702.14401.36601.09741.37542.2676
H104.57615.21474.73445.21533.24744.21523.18762.15421.09742.22332.7933
C113.63384.08534.29494.08511.37032.13552.21382.25511.37542.22331.0949
H124.61534.97435.35144.97392.16392.55623.25593.33232.26762.79331.0949

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 123.627 C1 C7 N8 125.798
H2 C1 H3 108.142 H2 C1 H4 107.619
H2 C1 C7 112.493 H3 C1 H4 108.145
H3 C1 C7 107.785 H4 C1 C7 112.495
N5 C7 N8 110.575 N5 C11 C9 104.708
N5 C11 H12 122.360 H6 N5 C7 126.047
H6 N5 C11 125.836 C7 N5 C11 108.118
C7 N8 C9 105.903 N8 C9 H10 121.583
N8 C9 C11 110.696 C9 C11 H12 132.931
H10 C9 C11 127.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.113      
2 H 0.083      
3 H 0.093      
4 H 0.083      
5 N -0.047      
6 H 0.115      
7 C -0.028      
8 N -0.153      
9 C -0.051      
10 H 0.019      
11 C -0.036      
12 H 0.034      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.630 3.515 -0.001 3.571
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.056 0.538 -0.000
y 0.538 -33.391 -0.002
z -0.000 -0.002 -37.511
Traceless
 xyz
x 4.395 0.538 -0.000
y 0.538 0.893 -0.002
z -0.000 -0.002 -5.288
Polar
3z2-r2-10.576
x2-y22.335
xy0.538
xz-0.000
yz-0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.818 0.078 0.000
y 0.078 8.327 -0.000
z 0.000 -0.000 4.491


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000