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

using model chemistry: B3LYP/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 B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-226.288457
Energy at 298.15K-226.294483
HF Energy-226.288457
Nuclear repulsion energy163.433568
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 B3LYP/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 83.64      
2 A' 3269 3162 0.37      
3 A' 3251 3145 1.18      
4 A' 3237 3132 2.74      
5 A' 1564 1513 6.37      
6 A' 1476 1428 6.69      
7 A' 1420 1374 12.35      
8 A' 1382 1337 5.26      
9 A' 1280 1238 2.24      
10 A' 1175 1136 0.10      
11 A' 1141 1104 20.77      
12 A' 1055 1020 5.43      
13 A' 1043 1010 37.52      
14 A' 942 912 5.05      
15 A' 925 895 9.36      
16 A" 908 879 4.32      
17 A" 858 830 7.50      
18 A" 762 737 95.17      
19 A" 693 670 18.50      
20 A" 641 620 0.10      
21 A" 543 526 55.85      

Unscaled Zero Point Vibrational Energy (zpe) 15612.9 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 15105.5 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 B3LYP/aug-cc-pVTZ
ABC
0.32284 0.31666 0.15986

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.097 0.730 0.000
C2 1.107 0.308 0.000
H3 1.263 -1.886 0.000
C4 0.662 -0.995 0.000
H5 -1.474 -1.683 0.000
C6 -0.742 -0.892 0.000
N7 -1.143 0.374 0.000
H8 -0.050 2.089 0.000
N9 0.000 1.086 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.07572.74612.24324.30933.26983.25932.54022.1267
C21.07572.19981.37653.25962.20482.25132.12361.3533
H32.74612.19981.07482.74412.23813.30114.18623.2294
C42.24321.37651.07482.24431.40862.26573.16472.1836
H54.30933.25962.74412.24431.07722.08324.03153.1365
C63.26982.20482.23811.40861.07721.32803.06032.1126
N73.25932.25133.30112.26572.08321.32802.03381.3466
H82.54022.12364.18623.16474.03153.06032.03381.0041
N92.12671.35333.22942.18363.13652.11261.34661.0041

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 131.959 H1 C2 N9 121.804
C2 C4 H3 127.197 C2 C4 C6 104.672
C2 N9 N7 112.995 C2 N9 H8 127.920
H3 C4 C6 128.131 C4 C2 N9 106.237
C4 C6 H5 128.588 C4 C6 N7 111.745
H5 C6 N7 119.668 C6 N7 N9 104.351
N7 N9 H8 119.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability