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

using model chemistry: BLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-311G*
 hartrees
Energy at 0K-226.175949
Energy at 298.15K-226.181762
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 BLYP/6-311G*
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' 3564 3555 46.81      
2 A' 3182 3174 4.21      
3 A' 3165 3158 7.73      
4 A' 3153 3145 6.13      
5 A' 1514 1510 5.39      
6 A' 1430 1427 6.20      
7 A' 1378 1374 9.32      
8 A' 1330 1327 5.35      
9 A' 1230 1227 1.83      
10 A' 1129 1126 0.53      
11 A' 1105 1102 17.36      
12 A' 1026 1023 7.80      
13 A' 1000 997 34.33      
14 A' 912 910 6.13      
15 A' 899 897 9.49      
16 A" 837 835 6.65      
17 A" 785 783 18.97      
18 A" 707 706 84.05      
19 A" 668 667 20.22      
20 A" 617 616 0.36      
21 A" 467 466 58.34      

Unscaled Zero Point Vibrational Energy (zpe) 15049.0 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 15011.3 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 BLYP/6-311G*
ABC
0.31679 0.30858 0.15632

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.121 0.736 0.000
C2 1.122 0.310 0.000
H3 1.277 -1.905 0.000
C4 0.670 -1.005 0.000
H5 -1.486 -1.696 0.000
C6 -0.746 -0.899 0.000
N7 -1.162 0.379 0.000
H8 -0.052 2.109 0.000
N9 0.000 1.096 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08592.77232.26584.35063.30093.30282.57102.1515
C21.08592.22001.38993.29062.22572.28572.14871.3704
H32.77232.22001.08552.77112.25923.34154.22813.2612
C42.26581.38991.08552.26481.42052.29633.19622.2050
H54.35063.29062.77112.26481.08732.10024.06603.1630
C63.30092.22572.25921.42051.08731.34443.08722.1304
N73.30282.28573.34152.29632.10021.34442.05511.3657
H82.57102.14874.22813.19624.06603.08722.05511.0141
N92.15151.37043.26122.20503.16302.13041.36571.0141

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 132.079 H1 C2 N9 121.886
C2 C4 H3 127.053 C2 C4 C6 104.734
C2 N9 N7 113.315 C2 N9 H8 127.984
H3 C4 C6 128.214 C4 C2 N9 106.035
C4 C6 H5 128.645 C4 C6 N7 112.270
H5 C6 N7 119.086 C6 N7 N9 103.647
N7 N9 H8 118.701
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.198      
2 C 0.041      
3 H 0.179      
4 C -0.362      
5 H 0.183      
6 C -0.040      
7 N -0.164      
8 H 0.339      
9 N -0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.039 0.952 0.000 2.250
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.871 2.440 0.000
y 2.440 -22.272 0.000
z 0.000 0.000 -32.037
Traceless
 xyz
x -2.716 2.440 0.000
y 2.440 8.682 0.000
z 0.000 0.000 -5.966
Polar
3z2-r2-11.932
x2-y2-7.599
xy2.440
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 81.312
(<r2>)1/2 9.017