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

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-226.021017
Energy at 298.15K-226.026922
HF Energy-226.021017
Nuclear repulsion energy162.578559
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 PBEPBE/Def2TZVPP
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' 3579 3536 69.38      
2 A' 3202 3163 0.69      
3 A' 3183 3145 1.57      
4 A' 3170 3131 2.84      
5 A' 1515 1497 4.91      
6 A' 1438 1421 4.74      
7 A' 1391 1375 9.89      
8 A' 1337 1321 3.12      
9 A' 1243 1228 2.90      
10 A' 1153 1139 0.33      
11 A' 1119 1105 15.99      
12 A' 1028 1016 10.10      
13 A' 1021 1009 33.42      
14 A' 913 902 4.50      
15 A' 893 882 8.76      
16 A" 864 853 4.77      
17 A" 810 800 12.96      
18 A" 727 718 86.19      
19 A" 677 669 19.51      
20 A" 622 615 0.29      
21 A" 524 517 45.62      

Unscaled Zero Point Vibrational Energy (zpe) 15204.6 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 15020.6 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 PBEPBE/Def2TZVPP
ABC
0.32012 0.31293 0.15824

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.111 0.736 0.000
C2 1.114 0.309 0.000
H3 1.269 -1.901 0.000
C4 0.663 -1.002 0.000
H5 -1.485 -1.691 0.000
C6 -0.744 -0.897 0.000
N7 -1.149 0.381 0.000
H8 -0.049 2.100 0.000
N9 0.000 1.089 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08482.76802.26174.33883.28943.27972.55532.1408
C21.08482.21561.38623.27982.21542.26412.13541.3596
H32.76802.21561.08412.76192.24973.32494.21253.2477
C42.26171.38621.08412.25641.41162.27973.18252.1931
H54.33883.27982.76192.25641.08632.09984.05433.1518
C63.28942.21542.24971.41161.08631.34073.07652.1204
N73.27972.26413.32492.27972.09981.34072.04061.3493
H82.55532.13544.21253.18254.05433.07652.04061.0126
N92.14081.35963.24772.19313.15182.12041.34931.0126

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 132.115 H1 C2 N9 121.875
C2 C4 H3 127.075 C2 C4 C6 104.709
C2 N9 N7 113.402 C2 N9 H8 127.757
H3 C4 C6 128.215 C4 C2 N9 106.010
C4 C6 H5 128.731 C4 C6 N7 111.829
H5 C6 N7 119.440 C6 N7 N9 104.049
N7 N9 H8 118.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.125      
2 C -0.102      
3 H 0.120      
4 C -0.143      
5 H 0.097      
6 C -0.103      
7 N -0.201      
8 H 0.189      
9 N 0.018      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.048 0.910 0.000 2.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.082 2.459 0.000
y 2.459 -22.424 0.000
z 0.000 0.000 -32.018
Traceless
 xyz
x -2.860 2.459 0.000
y 2.459 8.625 0.000
z 0.000 0.000 -5.765
Polar
3z2-r2-11.530
x2-y2-7.657
xy2.459
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.103 0.229 0.000
y 0.229 8.091 0.000
z 0.000 0.000 4.462


<r2> (average value of r2) Å2
<r2> 80.659
(<r2>)1/2 8.981