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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-225.515853
Energy at 298.15K-225.521823
HF Energy-224.791147
Nuclear repulsion energy163.029933
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 MP3/6-31G*
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' 3736 3507 89.16      
2 A' 3340 3135 0.33      
3 A' 3322 3118 2.16      
4 A' 3310 3107 3.79      
5 A' 1629 1529 6.53      
6 A' 1552 1457 9.01      
7 A' 1488 1397 19.25      
8 A' 1437 1349 4.87      
9 A' 1326 1245 2.21      
10 A' 1227 1152 1.46      
11 A' 1184 1111 19.43      
12 A' 1096 1028 23.55      
13 A' 1090 1023 18.45      
14 A' 959 900 5.18      
15 A' 939 882 8.24      
16 A" 862 809 16.92      
17 A" 813 763 6.13      
18 A" 752 706 90.50      
19 A" 700 657 23.53      
20 A" 629 591 0.00      
21 A" 510 478 63.34      

Unscaled Zero Point Vibrational Energy (zpe) 15951.1 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 14971.7 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 MP3/6-31G*
ABC
0.32219 0.31426 0.15909

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.104 0.731 0.000
C2 1.112 0.305 0.000
H3 1.264 -1.896 0.000
C4 0.665 -0.998 0.000
H5 -1.480 -1.683 0.000
C6 -0.744 -0.890 0.000
N7 -1.147 0.380 0.000
H8 -0.050 2.092 0.000
N9 0.000 1.085 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08012.75782.24994.32143.27773.27052.54822.1341
C21.08012.20671.37813.26652.20782.26002.13071.3579
H32.75782.20671.07962.75302.24623.31574.19863.2384
C42.24991.37811.07962.25161.41312.27633.17152.1871
H54.32143.26652.75302.25161.08132.08904.03623.1389
C63.27772.20782.24621.41311.08131.33263.06192.1114
N73.27052.26003.31572.27632.08901.33262.03341.3469
H82.54822.13074.19863.17154.03623.06192.03341.0075
N92.13411.35793.23842.18713.13892.11141.34691.0075

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 132.110 H1 C2 N9 121.753
C2 C4 H3 127.338 C2 C4 C6 104.547
C2 N9 N7 113.345 C2 N9 H8 127.897
H3 C4 C6 128.115 C4 C2 N9 106.137
C4 C6 H5 128.529 C4 C6 N7 111.972
H5 C6 N7 119.500 C6 N7 N9 103.999
N7 N9 H8 118.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability