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

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-226.278714
Energy at 298.15K-226.284705
HF Energy-226.278714
Nuclear repulsion energy163.249954
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 B3LYP/TZVP
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' 3663 3536 85.31      
2 A' 3275 3162 0.30      
3 A' 3258 3146 1.14      
4 A' 3245 3133 2.95      
5 A' 1568 1513 6.32      
6 A' 1476 1425 7.40      
7 A' 1422 1373 12.35      
8 A' 1384 1336 5.65      
9 A' 1281 1237 1.84      
10 A' 1175 1134 0.11      
11 A' 1142 1102 22.81      
12 A' 1057 1021 6.99      
13 A' 1044 1008 41.23      
14 A' 945 913 5.69      
15 A' 928 896 8.80      
16 A" 894 863 6.10      
17 A" 844 814 9.82      
18 A" 751 725 96.06      
19 A" 690 666 22.37      
20 A" 636 614 0.01      
21 A" 520 502 56.43      

Unscaled Zero Point Vibrational Energy (zpe) 15599.2 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 15059.5 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 B3LYP/TZVP
ABC
0.32254 0.31557 0.15951

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.070 0.633 0.000
C2 1.083 0.299 0.000
H3 1.201 -1.853 0.000
C4 0.629 -0.982 0.000
H5 -1.427 -1.657 0.000
C6 -0.739 -0.872 0.000
N7 -1.099 0.390 0.000
H8 0.008 2.044 0.000
N9 0.000 1.063 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.04242.63412.16474.18003.18763.17832.49852.1142
C21.04242.15531.35903.18162.16622.18362.04951.3252
H32.63412.15531.04192.63502.17413.21264.07543.1534
C42.16471.35901.04192.16381.37302.20663.08892.1394
H54.18003.18162.63502.16381.04292.07283.96853.0708
C63.18762.16622.17411.37301.04291.31263.01012.0713
N73.17832.18363.21262.20662.07281.31261.98951.2882
H82.49852.04954.07543.08893.96853.01011.98950.9810
N92.11421.32523.15342.13943.07082.07131.28820.9810

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 128.221 H1 C2 N9 126.089
C2 C4 H3 127.222 C2 C4 C6 104.914
C2 N9 N7 113.337 C2 N9 H8 124.743
H3 C4 C6 127.863 C4 C2 N9 105.690
C4 C6 H5 126.644 C4 C6 N7 110.479
H5 C6 N7 122.877 C6 N7 N9 105.579
N7 N9 H8 121.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.123      
2 C -0.176      
3 H 0.136      
4 C -0.023      
5 H 0.113      
6 C -0.220      
7 N -0.106      
8 H 0.250      
9 N -0.096      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.190 0.876 0.000 2.359
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.204 2.623 0.000
y 2.623 -22.397 0.000
z 0.000 0.000 -32.229
Traceless
 xyz
x -2.891 2.623 0.000
y 2.623 8.819 0.000
z 0.000 0.000 -5.928
Polar
3z2-r2-11.857
x2-y2-7.806
xy2.623
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.628 0.215 0.000
y 0.215 7.693 0.000
z 0.000 0.000 4.187


<r2> (average value of r2) Å2
<r2> 80.199
(<r2>)1/2 8.955