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

using model chemistry: BLYP/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-226.208099
Energy at 298.15K 
Nuclear repulsion energy 
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 BLYP/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' 3560 3549 65.21      
2 A' 3191 3181 1.95      
3 A' 3174 3164 3.06      
4 A' 3160 3151 4.16      
5 A' 1506 1501 4.99      
6 A' 1420 1415 5.66      
7 A' 1372 1368 8.66      
8 A' 1327 1323 4.83      
9 A' 1228 1224 1.75      
10 A' 1126 1123 1.47      
11 A' 1102 1099 16.12      
12 A' 1026 1023 6.73      
13 A' 995 992 31.30      
14 A' 913 910 7.19      
15 A' 898 895 9.04      
16 A" 859 856 4.91      
17 A" 806 803 11.45      
18 A" 723 720 79.67      
19 A" 670 668 18.09      
20 A" 620 618 0.36      
21 A" 487 486 47.11      

Unscaled Zero Point Vibrational Energy (zpe) 15079.5 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 15034.3 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 BLYP/cc-pVTZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.115 0.733 0.000
C2 1.119 0.310 0.000
H3 1.274 -1.898 0.000
C4 0.669 -1.002 0.000
H5 -1.479 -1.696 0.000
C6 -0.745 -0.899 0.000
N7 -1.159 0.377 0.000
H8 -0.051 2.105 0.000
N9 0.000 1.095 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08212.76202.25834.33763.29263.29292.56412.1454
C21.08212.21361.38683.28222.22152.27862.14271.3664
H32.76202.21361.08142.76032.25223.33104.21693.2527
C42.25831.38681.08142.25731.41732.28963.18932.2007
H54.33763.28222.76032.25731.08352.09804.06063.1587
C63.29262.22152.25221.41731.08351.34223.08362.1288
N73.29292.27863.33102.28962.09801.34222.05241.3631
H82.56412.14274.21693.18934.06063.08362.05241.0117
N92.14541.36643.25272.20073.15872.12881.36311.0117

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 131.926 H1 C2 N9 121.950
C2 C4 H3 127.049 C2 C4 C6 104.785
C2 N9 N7 113.186 C2 N9 H8 127.959
H3 C4 C6 128.166 C4 C2 N9 106.124
C4 C6 H5 128.519 C4 C6 N7 112.116
H5 C6 N7 119.364 C6 N7 N9 103.789
N7 N9 H8 118.854
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.096      
2 C -0.074      
3 H 0.096      
4 C -0.149      
5 H 0.089      
6 C -0.079      
7 N -0.165      
8 H 0.151      
9 N 0.032      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.024 0.892 0.000 2.212
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.220 2.410 0.000
y 2.410 -22.654 0.000
z 0.000 0.000 -31.922
Traceless
 xyz
x -2.932 2.410 0.000
y 2.410 8.417 0.000
z 0.000 0.000 -5.485
Polar
3z2-r2-10.970
x2-y2-7.566
xy2.410
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 81.148
(<r2>)1/2 9.008