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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-226.134305
Energy at 298.15K-226.140214
HF Energy-226.134305
Nuclear repulsion energy162.702636
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 B97D3/6-311+G(3df,2p)
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' 3612 3565 67.29      
2 A' 3216 3174 1.92      
3 A' 3197 3156 2.84      
4 A' 3182 3140 4.25      
5 A' 1521 1501 5.39      
6 A' 1439 1420 6.03      
7 A' 1389 1371 9.48      
8 A' 1341 1324 4.31      
9 A' 1248 1232 2.17      
10 A' 1155 1140 0.12      
11 A' 1119 1104 17.22      
12 A' 1036 1022 7.49      
13 A' 1020 1007 33.37      
14 A' 926 914 3.34      
15 A' 912 900 10.15      
16 A" 864 853 4.97      
17 A" 812 801 12.84      
18 A" 726 717 92.85      
19 A" 675 666 15.92      
20 A" 624 615 0.37      
21 A" 505 498 49.50      

Unscaled Zero Point Vibrational Energy (zpe) 15257.8 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 15059.4 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 B97D3/6-311+G(3df,2p)
ABC
0.32019 0.31360 0.15843

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.108 0.732 0.000
C2 1.114 0.309 0.000
H3 1.268 -1.896 0.000
C4 0.664 -1.001 0.000
H5 -1.483 -1.686 0.000
C6 -0.745 -0.895 0.000
N7 -1.149 0.380 0.000
H8 -0.049 2.094 0.000
N9 0.000 1.088 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08032.75862.25514.32903.28453.27562.55112.1378
C21.08032.20961.38423.27462.21492.26382.13111.3597
H32.75862.20961.07962.75842.24823.31944.20173.2419
C42.25511.38421.07962.25371.41352.27873.17602.1916
H54.32903.27462.75842.25371.08172.09344.04373.1458
C63.28452.21492.24821.41351.08171.33733.06952.1185
N73.27562.26383.31942.27872.09341.33732.03691.3493
H82.55112.13114.20173.17604.04373.06952.03691.0076
N92.13781.35973.24192.19163.14582.11851.34931.0076

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 132.169 H1 C2 N9 121.847
C2 C4 H3 127.010 C2 C4 C6 104.881
C2 N9 N7 113.272 C2 N9 H8 127.816
H3 C4 C6 128.110 C4 C2 N9 105.984
C4 C6 H5 128.814 C4 C6 N7 111.606
H5 C6 N7 119.581 C6 N7 N9 104.257
N7 N9 H8 118.912
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.146      
2 C 0.231      
3 H 0.137      
4 C 0.048      
5 H 0.132      
6 C 0.160      
7 N -0.632      
8 H 0.167      
9 N -0.388      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.096 0.808 0.000 2.246
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.209 2.562 0.000
y 2.562 -22.521 0.000
z 0.000 0.000 -32.116
Traceless
 xyz
x -2.891 2.562 0.000
y 2.562 8.642 0.000
z 0.000 0.000 -5.750
Polar
3z2-r2-11.501
x2-y2-7.689
xy2.562
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.562 0.155 0.000
y 0.155 8.449 0.000
z 0.000 0.000 5.146


<r2> (average value of r2) Å2
<r2> 80.620
(<r2>)1/2 8.979