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

using model chemistry: B3LYPultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-226.288452
Energy at 298.15K-226.294476
HF Energy-226.288452
Nuclear repulsion energy163.429681
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 B3LYPultrafine/aug-cc-pVTZ
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' 3662 3543 83.63      
2 A' 3269 3162 0.38      
3 A' 3251 3145 1.13      
4 A' 3237 3131 2.77      
5 A' 1564 1513 6.41      
6 A' 1476 1428 6.70      
7 A' 1420 1374 12.27      
8 A' 1382 1337 5.27      
9 A' 1279 1238 2.24      
10 A' 1175 1136 0.10      
11 A' 1140 1103 20.79      
12 A' 1055 1021 5.48      
13 A' 1043 1009 37.51      
14 A' 942 912 5.06      
15 A' 925 895 9.33      
16 A" 908 879 4.20      
17 A" 858 830 7.71      
18 A" 763 738 94.77      
19 A" 693 670 18.42      
20 A" 640 619 0.11      
21 A" 541 523 56.37      

Unscaled Zero Point Vibrational Energy (zpe) 15609.6 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 15102.3 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 B3LYPultrafine/aug-cc-pVTZ
ABC
0.32282 0.31664 0.15985

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.098 0.726 0.000
C2 1.107 0.307 0.000
H3 1.261 -1.890 0.000
C4 0.664 -0.996 0.000
H5 -1.478 -1.682 0.000
C6 -0.748 -0.889 0.000
N7 -1.138 0.374 0.000
H8 -0.047 2.090 0.000
N9 0.000 1.087 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.07642.74612.24114.31123.27233.25552.54262.1291
C21.07642.20181.37613.26122.20672.24602.12441.3542
H32.74612.20181.07492.74732.24473.29914.18963.2330
C42.24111.37611.07492.24901.41582.26403.16732.1865
H54.31123.26122.74732.24901.07782.08404.03433.1388
C63.27232.20672.24471.41581.07781.32233.06052.1130
N73.25552.24603.29912.26402.08401.32232.03331.3431
H82.54262.12444.18963.16734.03433.06052.03331.0042
N92.12911.35423.23302.18653.13882.11301.34311.0042

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 131.692 H1 C2 N9 121.892
C2 C4 H3 127.452 C2 C4 C6 104.435
C2 N9 N7 112.752 C2 N9 H8 127.897
H3 C4 C6 128.113 C4 C2 N9 106.416
C4 C6 H5 128.307 C4 C6 N7 111.511
H5 C6 N7 120.182 C6 N7 N9 104.886
N7 N9 H8 119.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.507      
2 C -0.713      
3 H 0.341      
4 C 0.005      
5 H 0.522      
6 C -0.413      
7 N -0.655      
8 H 0.077      
9 N 0.328      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.143 0.783 0.000 2.282
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.398 2.597 0.000
y 2.597 -22.690 0.000
z 0.000 0.000 -32.201
Traceless
 xyz
x -2.952 2.597 0.000
y 2.597 8.609 0.000
z 0.000 0.000 -5.657
Polar
3z2-r2-11.314
x2-y2-7.708
xy2.597
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.357 0.168 0.000
y 0.168 8.369 0.000
z 0.000 0.000 5.077


<r2> (average value of r2) Å2
<r2> 80.160
(<r2>)1/2 8.953