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

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-224.815759
Energy at 298.15K-224.821997
Nuclear repulsion energy 
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 HF/cc-pVDZ
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' 3909 3549 121.60      
2 A' 3440 3123 0.68      
3 A' 3419 3104 3.87      
4 A' 3404 3091 6.68      
5 A' 1734 1575 9.39      
6 A' 1628 1478 10.76      
7 A' 1546 1404 33.86      
8 A' 1530 1389 1.13      
9 A' 1388 1260 3.96      
10 A' 1280 1162 3.50      
11 A' 1221 1109 24.94      
12 A' 1133 1029 55.60      
13 A' 1114 1012 1.40      
14 A' 1011 918 6.07      
15 A' 995 903 14.19      
16 A" 1013 920 3.93      
17 A" 974 884 2.22      
18 A" 843 765 89.36      
19 A" 748 679 21.78      
20 A" 686 623 0.33      
21 A" 557 506 75.13      

Unscaled Zero Point Vibrational Energy (zpe) 16785.9 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 15241.6 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 HF/cc-pVDZ
ABC
0.32856 0.32063 0.16227

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.089 0.724 0.000
C2 1.098 0.302 0.000
H3 1.259 -1.890 0.000
C4 0.662 -0.994 0.000
H5 -1.487 -1.660 0.000
C6 -0.749 -0.874 0.000
N7 -1.127 0.374 0.000
H8 -0.041 2.071 0.000
N9 0.000 1.076 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.07712.74222.23264.29723.25643.23412.51992.1180
C21.07712.19731.36663.24472.18902.22552.10391.3431
H32.74222.19731.07622.75522.25023.28874.16813.2213
C42.23261.36661.07622.25021.41652.25223.14412.1728
H54.29723.24472.75522.25021.07832.06584.00073.1133
C63.25642.18902.25021.41651.07831.30383.02802.0881
N73.23412.22553.28872.25222.06581.30382.01371.3269
H82.51992.10394.16813.14414.00073.02802.01370.9959
N92.11801.34313.22132.17283.11332.08811.32690.9959

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 131.654 H1 C2 N9 121.739
C2 C4 H3 127.781 C2 C4 C6 103.707
C2 N9 N7 112.919 C2 N9 H8 127.554
H3 C4 C6 128.512 C4 C2 N9 106.607
C4 C6 H5 128.320 C4 C6 N7 111.701
H5 C6 N7 119.979 C6 N7 N9 105.065
N7 N9 H8 119.526
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.045 0.136    
2 C 0.190 -0.072    
3 H 0.022 0.140    
4 C -0.238 -0.290    
5 H 0.031 0.081    
6 C 0.161 0.205    
7 N -0.234 -0.480    
8 H 0.125 0.275    
9 N -0.102 0.004    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.159 0.890 0.000 2.335
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.461 2.753 0.000
y 2.753 -22.160 0.000
z 0.000 0.000 -32.034
Traceless
 xyz
x -2.364 2.753 0.000
y 2.753 8.588 0.000
z 0.000 0.000 -6.224
Polar
3z2-r2-12.448
x2-y2-7.301
xy2.753
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.512 0.309 0.000
y 0.309 7.027 0.000
z 0.000 0.000 2.842


<r2> (average value of r2) Å2
<r2> 78.955
(<r2>)1/2 8.886