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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-226.052551
Energy at 298.15K-226.058387
HF Energy-226.052551
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 B97D3/6-31G*
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' 3601 3531 50.44      
2 A' 3232 3169 3.92      
3 A' 3214 3151 6.69      
4 A' 3199 3136 7.79      
5 A' 1541 1511 5.88      
6 A' 1462 1433 6.11      
7 A' 1411 1383 10.09      
8 A' 1353 1326 4.22      
9 A' 1258 1234 2.51      
10 A' 1163 1140 0.29      
11 A' 1132 1110 14.80      
12 A' 1045 1025 8.19      
13 A' 1028 1008 32.19      
14 A' 925 906 5.10      
15 A' 910 892 9.61      
16 A" 846 829 5.69      
17 A" 792 777 18.80      
18 A" 716 702 65.58      
19 A" 677 663 21.74      
20 A" 620 608 0.16      
21 A" 470 460 55.29      

Unscaled Zero Point Vibrational Energy (zpe) 15296.7 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 14996.8 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 B97D3/6-31G*
ABC
0.31901 0.31018 0.15727

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.117 0.736 0.000
C2 1.120 0.308 0.000
H3 1.272 -1.905 0.000
C4 0.667 -1.005 0.000
H5 -1.488 -1.690 0.000
C6 -0.746 -0.895 0.000
N7 -1.156 0.384 0.000
H8 -0.050 2.099 0.000
N9 0.000 1.089 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08482.77262.26574.34473.29553.29242.56012.1463
C21.08482.21851.38933.28512.22112.27792.13901.3650
H32.77262.21851.08462.76802.25683.33744.21653.2525
C42.26571.38931.08462.26061.41742.29223.18562.1971
H54.34473.28512.76802.26061.08632.10024.05223.1514
C63.29552.22112.25681.41741.08631.34393.07442.1198
N73.29242.27793.33742.29222.10021.34392.04081.3540
H82.56012.13904.21653.18564.05223.07442.04081.0117
N92.14631.36503.25252.19713.15142.11981.35401.0117

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 132.275 H1 C2 N9 121.932
C2 C4 H3 127.024 C2 C4 C6 104.739
C2 N9 N7 113.722 C2 N9 H8 127.712
H3 C4 C6 128.237 C4 C2 N9 105.794
C4 C6 H5 128.683 C4 C6 N7 111.993
H5 C6 N7 119.324 C6 N7 N9 103.753
N7 N9 H8 118.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.160      
2 C 0.066      
3 H 0.140      
4 C -0.230      
5 H 0.145      
6 C 0.034      
7 N -0.273      
8 H 0.344      
9 N -0.384      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.060 0.902 0.000 2.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.124 2.377 0.000
y 2.377 -21.702 0.000
z 0.000 0.000 -31.148
Traceless
 xyz
x -2.698 2.377 0.000
y 2.377 8.433 0.000
z 0.000 0.000 -5.735
Polar
3z2-r2-11.470
x2-y2-7.421
xy2.377
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.068 0.280 0.000
y 0.280 7.209 0.000
z 0.000 0.000 2.564


<r2> (average value of r2) Å2
<r2> 80.483
(<r2>)1/2 8.971