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

using model chemistry: LSDA/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 LSDA/6-311G**
 hartrees
Energy at 0K-264.154553
Energy at 298.15K-264.162291
Nuclear repulsion energy226.022572
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/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 3553 3509 45.53      
2 A 3200 3160 0.46      
3 A 3167 3128 3.77      
4 A 3086 3048 0.65      
5 A 3023 2986 9.21      
6 A 2964 2927 23.66      
7 A 1584 1564 46.56      
8 A 1499 1481 1.80      
9 A 1458 1440 9.61      
10 A 1408 1390 11.94      
11 A 1394 1377 2.50      
12 A 1386 1369 33.52      
13 A 1338 1322 1.51      
14 A 1263 1247 16.44      
15 A 1186 1171 3.35      
16 A 1109 1095 9.35      
17 A 1080 1067 29.04      
18 A 1012 1000 2.90      
19 A 981 969 9.32      
20 A 930 919 0.51      
21 A 912 900 3.55      
22 A 832 822 10.03      
23 A 703 694 34.42      
24 A 685 676 1.17      
25 A 682 673 17.83      
26 A 640 632 16.16      
27 A 568 561 68.80      
28 A 337 333 5.64      
29 A 246 243 5.84      
30 A 92 91 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 21157.7 cm-1
Scaled (by 0.9877) Zero Point Vibrational Energy (zpe) 20897.5 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/6-311G**
ABC
0.29948 0.12189 0.08808

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.091 -0.024 0.000
H2 2.496 0.484 0.892
H3 2.457 -1.059 -0.001
H4 2.496 0.486 -0.891
N5 -0.166 1.045 -0.000
H6 0.155 2.010 -0.001
C7 0.620 -0.067 -0.000
N8 -0.120 -1.152 -0.000
C9 -1.415 -0.728 0.000
H10 -2.245 -1.432 0.000
C11 -1.473 0.639 0.000
H12 -2.301 1.342 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 N5 H6 C7 N8 C9 H10 C11 H12
C11.10301.09791.10302.49762.80761.47192.48243.57624.55923.62484.5997
H21.10301.78271.78242.86322.93322.14913.21174.19035.19074.07054.9541
H31.09791.78271.78273.36263.83592.08782.57883.88634.71684.28065.3295
H41.10301.78241.78272.86262.93162.14913.21234.19075.19134.07034.9538
N52.49762.86323.36262.86261.01741.36172.19722.16803.23361.36792.1553
H62.80762.93323.83592.93161.01742.12823.17393.15604.19652.12862.5458
C71.47192.14912.08782.14911.36172.12821.31332.13953.17352.20833.2430
N82.48243.21172.57883.21232.19723.17391.31331.36282.14332.24413.3130
C93.57624.19033.88634.19072.16803.15602.13951.36281.08871.36742.2511
H104.55925.19074.71685.19133.23364.19653.17352.14331.08872.21032.7746
C113.62484.07054.28064.07031.36792.12862.20832.24411.36742.21031.0867
H124.59974.95415.32954.95382.15532.54583.24303.31302.25112.77461.0867

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 123.582 C1 C7 N8 125.980
H2 C1 H3 108.194 H2 C1 H4 107.795
H2 C1 C7 112.361 H3 C1 H4 108.196
H3 C1 C7 107.781 H4 C1 C7 112.364
N5 C7 N8 110.439 N5 C11 C9 104.859
N5 C11 H12 122.409 H6 N5 C7 126.291
H6 N5 C11 125.710 C7 N5 C11 107.998
C7 N8 C9 106.146 N8 C9 H10 121.515
N8 C9 C11 110.558 C9 C11 H12 132.732
H10 C9 C11 127.927
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.405      
2 H 0.163      
3 H 0.181      
4 H 0.163      
5 N -0.383      
6 H 0.244      
7 C 0.212      
8 N -0.291      
9 C -0.132      
10 H 0.126      
11 C -0.011      
12 H 0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.556 3.600 -0.001 3.643
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.850 0.579 -0.001
y 0.579 -33.893 -0.002
z -0.001 -0.002 -38.020
Traceless
 xyz
x 5.107 0.579 -0.001
y 0.579 0.541 -0.002
z -0.001 -0.002 -5.648
Polar
3z2-r2-11.296
x2-y23.044
xy0.579
xz-0.001
yz-0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.804 0.060 0.000
y 0.060 8.535 -0.000
z 0.000 -0.000 4.920


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