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

using model chemistry: SVWN/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 SVWN/3-21G*
 hartrees
Energy at 0K-223.714499
Energy at 298.15K-223.720507
Nuclear repulsion energy161.587524
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 SVWN/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' 3544 3544 92.68      
2 A' 3248 3248 0.38      
3 A' 3221 3221 0.08      
4 A' 3215 3215 1.05      
5 A' 1506 1506 14.11      
6 A' 1422 1422 11.06      
7 A' 1378 1378 6.94      
8 A' 1327 1327 2.87      
9 A' 1242 1242 2.13      
10 A' 1138 1138 5.78      
11 A' 1130 1130 14.58      
12 A' 1052 1052 9.50      
13 A' 990 990 20.28      
14 A' 937 937 3.45      
15 A' 923 923 16.51      
16 A" 910 910 0.88      
17 A" 843 843 17.22      
18 A" 751 751 84.61      
19 A" 682 682 43.93      
20 A" 649 649 7.18      
21 A" 616 616 83.02      

Unscaled Zero Point Vibrational Energy (zpe) 15360.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15360.6 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 SVWN/3-21G*
ABC
0.31599 0.30967 0.15640

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.124 0.722 0.000
C2 1.116 0.317 0.000
H3 1.283 -1.889 0.000
C4 0.672 -0.993 0.000
H5 -1.456 -1.722 0.000
C6 -0.736 -0.908 0.000
N7 -1.172 0.367 0.000
H8 -0.060 2.118 0.000
N9 0.000 1.101 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08612.74302.24694.33423.29173.31472.59202.1572
C21.08612.21271.38343.28202.22062.28832.15061.3633
H32.74302.21271.08482.74422.24483.33424.22613.2534
C42.24691.38341.08482.24921.41052.29103.19572.1986
H54.33423.28202.74422.24921.08632.10784.08533.1757
C63.29172.22062.24481.41051.08631.34753.10052.1393
N73.31472.28833.33422.29102.10781.34752.07401.3826
H82.59202.15064.22613.19574.08533.10052.07401.0191
N92.15721.36333.25342.19863.17572.13931.38261.0191

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 130.590 H1 C2 N9 123.062
C2 C4 H3 126.987 C2 C4 C6 105.274
C2 N9 N7 112.885 C2 N9 H8 128.458
H3 C4 C6 127.739 C4 C2 N9 106.348
C4 C6 H5 128.062 C4 C6 N7 112.317
H5 C6 N7 119.621 C6 N7 N9 103.177
N7 N9 H8 118.657
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.235      
2 C 0.089      
3 H 0.201      
4 C -0.343      
5 H 0.226      
6 C 0.011      
7 N -0.276      
8 H 0.358      
9 N -0.502      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.104 1.065 0.000 2.358
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.258 2.466 0.000
y 2.466 -21.242 0.000
z 0.000 0.000 -31.980
Traceless
 xyz
x -2.647 2.466 0.000
y 2.466 9.377 0.000
z 0.000 0.000 -6.730
Polar
3z2-r2-13.460
x2-y2-8.016
xy2.466
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.432 0.337 0.000
y 0.337 6.684 0.000
z 0.000 0.000 1.851


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000