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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-224.721355
Energy at 298.15K-224.727675
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 HF/LANL2DZ
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' 3967 3570 123.07      
2 A' 3510 3159 1.98      
3 A' 3489 3140 8.30      
4 A' 3480 3132 2.09      
5 A' 1713 1542 14.83      
6 A' 1594 1435 22.55      
7 A' 1534 1380 20.00      
8 A' 1527 1374 4.25      
9 A' 1396 1257 2.29      
10 A' 1266 1140 0.72      
11 A' 1216 1095 31.27      
12 A' 1144 1030 2.61      
13 A' 1120 1008 58.72      
14 A' 1021 919 3.43      
15 A' 1012 911 20.73      
16 A" 1051 946 0.39      
17 A" 1007 906 4.56      
18 A" 878 790 130.61      
19 A" 744 669 118.72      
20 A" 714 643 24.15      
21 A" 676 608 46.79      

Unscaled Zero Point Vibrational Energy (zpe) 17030.2 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 15325.5 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/LANL2DZ
ABC
0.32021 0.31519 0.15884

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.096 0.714 0.000
C2 1.110 0.310 0.000
H3 1.262 -1.878 0.000
C4 0.671 -0.993 0.000
H5 -1.471 -1.683 0.000
C6 -0.752 -0.897 0.000
N7 -1.144 0.366 0.000
H8 -0.055 2.086 0.000
N9 0.000 1.097 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.06542.72322.22434.29733.27183.25882.55152.1308
C21.06542.19361.37543.26082.21882.25512.12441.3610
H32.72322.19361.06472.74002.24063.29064.17763.2320
C42.22431.37541.06472.24941.42552.26723.16372.1951
H54.29733.26082.74002.24941.06532.07474.02593.1447
C63.27182.21882.24061.42551.06531.32223.06292.1305
N73.25882.25513.29062.26722.07471.32222.03571.3575
H82.55152.12444.17763.16374.02593.06292.03570.9907
N92.13081.36103.23202.19513.14472.13051.35750.9907

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 130.947 H1 C2 N9 122.380
C2 C4 H3 127.578 C2 C4 C6 104.762
C2 N9 N7 112.105 C2 N9 H8 128.511
H3 C4 C6 127.660 C4 C2 N9 106.673
C4 C6 H5 128.549 C4 C6 N7 111.149
H5 C6 N7 120.302 C6 N7 N9 105.311
N7 N9 H8 119.384
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.244      
2 C -0.080      
3 H 0.233      
4 C -0.305      
5 H 0.241      
6 C -0.187      
7 N -0.105      
8 H 0.401      
9 N -0.442      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.528 0.703 0.000 2.624
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.694 3.215 0.000
y 3.215 -22.330 0.000
z 0.000 0.000 -33.145
Traceless
 xyz
x -2.956 3.215 0.000
y 3.215 9.589 0.000
z 0.000 0.000 -6.632
Polar
3z2-r2-13.265
x2-y2-8.364
xy3.215
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.476 0.289 0.000
y 0.289 6.942 0.000
z 0.000 0.000 2.601


<r2> (average value of r2) Å2
<r2> 80.641
(<r2>)1/2 8.980