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

using model chemistry: HF/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 HF/cc-pVTZ
 hartrees
Energy at 0K-224.875573
Energy at 298.15K-224.881832
Nuclear repulsion energy165.340747
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 HF/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' 3914 3562 112.47      
2 A' 3419 3111 1.19      
3 A' 3397 3092 3.96      
4 A' 3383 3079 7.42      
5 A' 1728 1573 10.18      
6 A' 1620 1475 11.35      
7 A' 1533 1395 9.66      
8 A' 1530 1392 25.57      
9 A' 1398 1272 3.04      
10 A' 1272 1158 1.64      
11 A' 1220 1110 27.05      
12 A' 1133 1031 52.38      
13 A' 1118 1018 0.58      
14 A' 1016 925 7.13      
15 A' 997 907 14.07      
16 A" 1026 934 4.49      
17 A" 987 899 2.36      
18 A" 851 775 100.63      
19 A" 748 681 19.63      
20 A" 688 626 0.29      
21 A" 567 516 75.42      

Unscaled Zero Point Vibrational Energy (zpe) 16772.4 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 15264.5 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 HF/cc-pVTZ
ABC
0.33065 0.32344 0.16350

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.076 0.719 0.000
C2 1.093 0.302 0.000
H3 1.254 -1.875 0.000
C4 0.661 -0.988 0.000
H5 -1.474 -1.656 0.000
C6 -0.746 -0.873 0.000
N7 -1.123 0.370 0.000
H8 -0.043 2.061 0.000
N9 0.000 1.074 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.06822.72172.21734.27143.23993.21832.50872.1061
C21.06822.18331.36043.22832.18182.21702.09431.3377
H32.72172.18331.06692.73702.23663.26984.14493.2044
C42.21731.36041.06692.23741.41162.24253.12992.1651
H54.27143.22832.73702.23741.06932.05573.98293.1019
C63.23992.18182.23661.41161.06931.29913.01732.0845
N73.21832.21703.26982.24252.05571.29912.00681.3254
H82.50872.09434.14493.12993.98293.01732.00680.9888
N92.10611.33773.20442.16513.10192.08451.32540.9888

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 131.483 H1 C2 N9 121.785
C2 C4 H3 127.769 C2 C4 C6 103.816
C2 N9 N7 112.711 C2 N9 H8 127.738
H3 C4 C6 128.414 C4 C2 N9 106.732
C4 C6 H5 128.282 C4 C6 N7 111.575
H5 C6 N7 120.143 C6 N7 N9 105.166
N7 N9 H8 119.551
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.169 0.129    
2 C -0.135 -0.144    
3 H 0.179 0.128    
4 C -0.251 -0.273    
5 H 0.167 0.058    
6 C -0.136 0.267    
7 N -0.187 -0.586    
8 H 0.200 0.243    
9 N -0.007 0.178    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.196 0.817 0.000 2.343
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.657 2.783 0.000
y 2.783 -22.191 0.000
z 0.000 0.000 -32.169
Traceless
 xyz
x -2.477 2.783 0.000
y 2.783 8.722 0.000
z 0.000 0.000 -6.246
Polar
3z2-r2-12.491
x2-y2-7.466
xy2.783
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.967 0.242 0.000
y 0.242 7.376 0.000
z 0.000 0.000 3.889


<r2> (average value of r2) Å2
<r2> 72.554
(<r2>)1/2 8.518