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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-265.254154
Energy at 298.15K 
HF Energy-264.967829
Nuclear repulsion energy224.679006
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=FULLultrafine/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 3668 3480 44.60      
2 A 3320 3150 3.72      
3 A 3291 3123 6.43      
4 A 3197 3033 4.16      
5 A 3133 2972 20.24      
6 A 3077 2919 29.78      
7 A 1614 1531 34.80      
8 A 1554 1474 0.96      
9 A 1534 1455 7.69      
10 A 1532 1454 4.29      
11 A 1472 1396 42.11      
12 A 1457 1383 0.51      
13 A 1417 1344 1.18      
14 A 1299 1232 15.48      
15 A 1204 1142 4.25      
16 A 1150 1091 2.25      
17 A 1122 1065 24.13      
18 A 1087 1032 1.33      
19 A 1022 970 9.87      
20 A 983 932 1.44      
21 A 932 884 3.13      
22 A 840 797 13.28      
23 A 717 681 30.59      
24 A 685 650 6.60      
25 A 684 649 1.41      
26 A 642 609 19.84      
27 A 499 473 77.97      
28 A 349 331 5.12      
29 A 251 238 6.04      
30 A 78 74 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 21904.4 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 20780.7 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=FULLultrafine/6-31G*
ABC
0.29648 0.11996 0.08679

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.113 -0.025 0.000
H2 2.504 0.487 0.886
H3 2.488 -1.048 -0.001
H4 2.504 0.490 -0.884
N5 -0.163 1.054 0.000
H6 0.163 2.009 -0.001
C7 0.618 -0.073 -0.000
N8 -0.120 -1.163 -0.000
C9 -1.432 -0.727 -0.000
H10 -2.256 -1.426 0.000
C11 -1.484 0.643 -0.000
H12 -2.304 1.344 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 N5 H6 C7 N8 C9 H10 C11 H12
C11.09501.08951.09502.51922.81791.49662.50753.61464.58873.65924.6249
H21.09501.77291.77032.86662.92952.15783.22434.21315.20574.08814.9632
H31.08951.77291.77293.38333.84062.10902.61133.93364.75934.31735.3562
H41.09501.77031.77292.86602.92712.15783.22514.21355.20644.08784.9628
N52.51922.86663.38332.86601.00931.37142.21772.18653.24491.38352.1606
H62.81792.92953.84062.92711.00932.13163.18513.16684.20132.14002.5550
C71.49662.15782.10902.15781.37142.13161.31642.15153.17602.22073.2477
N82.50753.22432.61133.22512.21773.18511.31641.38262.15152.26333.3252
C93.61464.21313.93364.21352.18653.16682.15151.38261.08051.37052.2470
H104.58875.20574.75935.20643.24494.20133.17602.15151.08052.20812.7707
C113.65924.08814.31734.08781.38352.14002.22072.26331.37052.20811.0790
H124.62494.96325.35624.96282.16062.55503.24773.32522.24702.77071.0790

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 122.838 C1 C7 N8 125.982
H2 C1 H3 108.504 H2 C1 H4 107.874
H2 C1 C7 111.806 H3 C1 H4 108.505
H3 C1 C7 108.248 H4 C1 C7 111.808
N5 C7 N8 111.181 N5 C11 C9 105.108
N5 C11 H12 122.166 H6 N5 C7 126.439
H6 N5 C11 126.135 C7 N5 C11 107.426
C7 N8 C9 105.693 N8 C9 H10 121.250
N8 C9 C11 110.592 C9 C11 H12 132.726
H10 C9 C11 128.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability