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

using model chemistry: B97D3/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-265.461346
Energy at 298.15K-265.468967
HF Energy-265.461346
Nuclear repulsion energy224.364140
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/cc-pVTZ
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 3592 3542 25.43      
2 A 3218 3173 6.12      
3 A 3186 3142 7.46      
4 A 3091 3048 5.65      
5 A 3019 2977 22.79      
6 A 2973 2931 41.59      
7 A 1549 1527 34.57      
8 A 1482 1461 1.66      
9 A 1460 1440 3.41      
10 A 1456 1436 6.12      
11 A 1397 1377 33.32      
12 A 1383 1364 1.30      
13 A 1348 1329 1.25      
14 A 1246 1229 15.38      
15 A 1153 1136 4.40      
16 A 1110 1094 2.19      
17 A 1072 1057 21.41      
18 A 1039 1024 0.69      
19 A 984 970 10.66      
20 A 944 930 2.26      
21 A 918 905 3.26      
22 A 827 815 10.17      
23 A 699 689 36.79      
24 A 672 663 0.90      
25 A 672 662 11.20      
26 A 629 620 10.32      
27 A 499 492 59.59      
28 A 340 335 4.77      
29 A 240 237 5.50      
30 A 61 60 0.23      

Unscaled Zero Point Vibrational Energy (zpe) 21128.4 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 20832.6 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/cc-pVTZ
ABC
0.29636 0.11945 0.08652

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.115 -0.024 -0.000
H2 2.507 0.489 0.886
H3 2.493 -1.048 -0.001
H4 2.507 0.491 -0.885
N5 -0.166 1.052 0.000
H6 0.155 2.007 -0.000
C7 0.625 -0.070 -0.000
N8 -0.122 -1.162 0.000
C9 -1.433 -0.729 0.000
H10 -2.258 -1.428 0.000
C11 -1.488 0.643 -0.000
H12 -2.306 1.346 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 N5 H6 C7 N8 C9 H10 C11 H12
C11.09681.09091.09682.52262.82291.49062.51003.61804.59313.66454.6293
H21.09681.77501.77192.87162.93592.15373.22854.21835.21204.09474.9685
H31.09091.77501.77503.38823.84682.10802.61763.93934.76644.32515.3635
H41.09681.77191.77502.87112.93462.15373.22924.21875.21264.09444.9680
N52.52262.87163.38822.87111.00761.37332.21442.18573.24421.38352.1603
H62.82292.93593.84682.93461.00762.12983.18113.16364.19762.13522.5483
C71.49062.15372.10802.15371.37332.12981.32312.16163.18712.23043.2561
N82.51003.22852.61763.22922.21443.18111.32311.38102.15262.26363.3263
C93.61804.21833.93934.21872.18573.16362.16161.38101.08101.37322.2517
H104.59315.21204.76645.21263.24424.19763.18712.15261.08102.20942.7747
C113.66454.09474.32514.09441.38352.13522.23042.26361.37322.20941.0792
H124.62934.96855.36354.96802.16032.54833.25613.32632.25172.77471.0792

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 123.605 C1 C7 N8 126.315
H2 C1 H3 108.436 H2 C1 H4 107.793
H2 C1 C7 111.808 H3 C1 H4 108.438
H3 C1 C7 108.453 H4 C1 C7 111.810
N5 C7 N8 110.081 N5 C11 C9 104.883
N5 C11 H12 122.248 H6 N5 C7 126.007
H6 N5 C11 125.736 C7 N5 C11 108.257
C7 N8 C9 106.393 N8 C9 H10 121.594
N8 C9 C11 110.386 C9 C11 H12 132.869
H10 C9 C11 128.020
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.261      
2 H 0.087      
3 H 0.107      
4 H 0.087      
5 N -0.026      
6 H 0.138      
7 C 0.090      
8 N -0.200      
9 C -0.077      
10 H 0.097      
11 C -0.142      
12 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.578 3.445 -0.000 3.493
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.071 0.566 -0.000
y 0.566 -34.189 -0.001
z -0.000 -0.001 -37.694
Traceless
 xyz
x 4.871 0.566 -0.000
y 0.566 0.193 -0.001
z -0.000 -0.001 -5.064
Polar
3z2-r2-10.127
x2-y23.118
xy0.566
xz-0.000
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.388 0.019 0.000
y 0.019 9.090 -0.000
z 0.000 -0.000 5.562


<r2> (average value of r2) Å2
<r2> 139.690
(<r2>)1/2 11.819