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

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-225.552341
Energy at 298.15K 
HF Energy-224.807457
Nuclear repulsion energy162.512570
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 MP2/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP2/6-31+G**
ABC
0.31961 0.31266 0.15805

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.107 0.728 0.000
C2 1.115 0.307 0.000
H3 1.262 -1.900 0.000
C4 0.665 -1.004 0.000
H5 -1.480 -1.687 0.000
C6 -0.748 -0.895 0.000
N7 -1.147 0.383 0.000
H8 -0.048 2.097 0.000
N9 0.000 1.091 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.07792.76092.25424.32413.28413.27222.55262.1376
C21.07792.21211.38653.27212.21682.26302.13441.3623
H32.76092.21211.07642.75052.24753.31934.20663.2461
C42.25421.38651.07642.25091.41732.28243.18262.1981
H54.32413.27212.75052.25091.07822.09634.04603.1470
C63.28412.21682.24751.41731.07821.33893.07322.1218
N73.27222.26303.31932.28242.09631.33892.03651.3478
H82.55262.13444.20663.18264.04603.07322.03651.0079
N92.13761.36233.24612.19813.14702.12181.34781.0079

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 121.887
C2 C4 H3 127.387 C2 C4 C6 104.488
C2 N9 N7 113.231 C2 N9 H8 127.824
H3 C4 C6 128.125 C4 C2 N9 106.187
C4 C6 H5 128.326 C4 C6 N7 111.774
H5 C6 N7 119.899 C6 N7 N9 104.319
N7 N9 H8 118.945
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability