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All results from a given calculation for C3H4N2 (1H-Pyrazole)

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-224.838900
Energy at 298.15K-224.845019
HF Energy-224.838900
Nuclear repulsion energy161.370554
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 M06-2X/3-21G*
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' 3649 3456 119.32      
2 A' 3338 3162 0.18      
3 A' 3291 3117 1.33      
4 A' 3288 3114 0.45      
5 A' 1567 1484 15.61      
6 A' 1462 1385 13.34      
7 A' 1410 1335 9.30      
8 A' 1378 1305 4.82      
9 A' 1278 1211 1.82      
10 A' 1170 1108 3.31      
11 A' 1143 1082 23.64      
12 A' 1076 1020 2.71      
13 A' 1011 958 21.36      
14 A' 962 911 3.13      
15 A' 943 893 18.10      
16 A" 991 939 0.28      
17 A" 916 868 12.14      
18 A" 823 779 81.77      
19 A" 693 657 58.75      
20 A" 666 631 12.06      
21 A" 621 588 86.93      

Unscaled Zero Point Vibrational Energy (zpe) 15837.5 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 15001.3 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 M06-2X/3-21G*
ABC
0.31530 0.30804 0.15581

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.113 0.727 0.000
C2 1.118 0.318 0.000
H3 1.285 -1.880 0.000
C4 0.679 -0.992 0.000
H5 -1.450 -1.718 0.000
C6 -0.740 -0.910 0.000
N7 -1.176 0.359 0.000
H8 -0.065 2.115 0.000
N9 0.000 1.107 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.07552.73472.23784.32073.28893.30952.58272.1470
C21.07552.20371.38103.27702.22702.29472.15181.3687
H32.73472.20371.07492.73912.24463.32684.21673.2512
C42.23781.38101.07492.24941.42132.29493.19472.2057
H54.32073.27702.73912.24941.07552.09514.07593.1751
C63.28892.22702.24461.42131.07551.34223.09982.1484
N73.30952.29473.32682.29492.09511.34222.07831.3936
H82.58272.15184.21673.19474.07593.09982.07831.0105
N92.14701.36873.25122.20573.17512.14841.39361.0105

picture of 1H-Pyrazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 130.878 H1 C2 N9 122.448
C2 C4 H3 127.178 C2 C4 C6 105.250
C2 N9 N7 112.340 C2 N9 H8 128.874
H3 C4 C6 127.572 C4 C2 N9 106.673
C4 C6 H5 128.022 C4 C6 N7 112.259
H5 C6 N7 119.719 C6 N7 N9 103.477
N7 N9 H8 118.785
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.241      
2 C 0.121      
3 H 0.209      
4 C -0.370      
5 H 0.231      
6 C 0.048      
7 N -0.294      
8 H 0.364      
9 N -0.550      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.221 0.896 0.000 2.395
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.483 2.671 0.000
y 2.671 -21.611 0.000
z 0.000 0.000 -32.278
Traceless
 xyz
x -2.539 2.671 0.000
y 2.671 9.269 0.000
z 0.000 0.000 -6.730
Polar
3z2-r2-13.461
x2-y2-7.872
xy2.671
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.177 0.328 0.000
y 0.328 6.631 0.000
z 0.000 0.000 1.784


<r2> (average value of r2) Å2
<r2> 81.256
(<r2>)1/2 9.014