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

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-264.081814
Energy at 298.15K-264.089483
Nuclear repulsion energy225.508593
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/6-31G*
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 3552 3485 35.38      
2 A 3221 3161 1.16      
3 A 3187 3128 5.06      
4 A 3109 3051 0.86      
5 A 3044 2987 10.23      
6 A 2983 2927 24.31      
7 A 1595 1566 41.26      
8 A 1519 1490 2.49      
9 A 1480 1452 6.61      
10 A 1443 1416 11.34      
11 A 1421 1394 24.67      
12 A 1411 1385 12.90      
13 A 1367 1341 0.98      
14 A 1278 1254 14.92      
15 A 1199 1177 2.67      
16 A 1120 1099 10.67      
17 A 1090 1069 24.42      
18 A 1026 1007 3.96      
19 A 986 967 8.59      
20 A 940 923 0.13      
21 A 905 888 3.52      
22 A 817 802 11.04      
23 A 697 684 22.18      
24 A 683 670 1.49      
25 A 676 663 15.94      
26 A 637 625 19.90      
27 A 538 528 71.54      
28 A 336 330 5.52      
29 A 245 241 5.56      
30 A 91 90 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 21297.5 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 20899.2 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/6-31G*
ABC
0.29769 0.12143 0.08769

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.095 -0.023 0.000
H2 2.504 0.485 0.893
H3 2.464 -1.060 -0.001
H4 2.505 0.487 -0.891
N5 -0.167 1.047 0.000
H6 0.159 2.012 -0.001
C7 0.620 -0.068 -0.000
N8 -0.121 -1.157 -0.000
C9 -1.417 -0.729 0.000
H10 -2.250 -1.434 0.000
C11 -1.475 0.642 0.000
H12 -2.303 1.350 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 N5 H6 C7 N8 C9 H10 C11 H12
C11.10551.10041.10552.50202.80881.47552.48983.58244.56843.63164.6071
H21.10551.78501.78402.87182.93772.15703.22314.20105.20414.08154.9652
H31.10041.78501.78503.37003.84032.09352.58703.89514.72854.29075.3409
H41.10551.78401.78502.87122.93602.15703.22384.20145.20474.08134.9649
N52.50202.87183.37002.87121.01951.36422.20452.17133.23941.36972.1574
H62.80882.93773.84032.93601.01952.13063.18233.16214.20532.13342.5499
C71.47552.15702.09352.15701.36422.13061.31812.14193.17882.21223.2485
N82.48983.22312.58703.22382.20453.18231.31811.36502.14652.25163.3233
C93.58244.20103.89514.20142.17133.16212.14191.36501.09151.37142.2590
H104.56845.20414.72855.20473.23944.20533.17882.14651.09152.21562.7843
C113.63164.08154.29074.08131.36972.13342.21222.25161.37142.21561.0891
H124.60714.96525.34094.96492.15742.54993.24853.32332.25902.78431.0891

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 123.495 C1 C7 N8 125.971
H2 C1 H3 108.032 H2 C1 H4 107.576
H2 C1 C7 112.588 H3 C1 H4 108.034
H3 C1 C7 107.842 H4 C1 C7 112.590
N5 C7 N8 110.533 N5 C11 C9 104.772
N5 C11 H12 122.253 H6 N5 C7 126.103
H6 N5 C11 125.862 C7 N5 C11 108.034
C7 N8 C9 105.922 N8 C9 H10 121.410
N8 C9 C11 110.738 C9 C11 H12 132.975
H10 C9 C11 127.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.637      
2 H 0.191      
3 H 0.223      
4 H 0.191      
5 N -0.565      
6 H 0.343      
7 C 0.442      
8 N -0.414      
9 C -0.083      
10 H 0.153      
11 C -0.013      
12 H 0.170      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.541 3.589 -0.001 3.630
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.337 0.509 -0.001
y 0.509 -33.168 -0.003
z -0.001 -0.003 -37.282
Traceless
 xyz
x 4.888 0.509 -0.001
y 0.509 0.642 -0.003
z -0.001 -0.003 -5.530
Polar
3z2-r2-11.059
x2-y22.831
xy0.509
xz-0.001
yz-0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.226 0.128 0.000
y 0.128 8.070 -0.000
z 0.000 -0.000 4.108


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