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

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-225.677324
Energy at 298.15K-225.683268
HF Energy-224.835796
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 MP2=FULL/6-311G*
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' 3705 3509 83.53      
2 A' 3312 3137 0.50      
3 A' 3293 3119 1.88      
4 A' 3285 3111 1.86      
5 A' 1563 1481 5.95      
6 A' 1523 1442 5.01      
7 A' 1463 1386 12.43      
8 A' 1389 1315 2.58      
9 A' 1304 1235 3.12      
10 A' 1203 1139 1.14      
11 A' 1171 1109 12.21      
12 A' 1074 1018 32.69      
13 A' 1071 1014 13.51      
14 A' 940 891 3.40      
15 A' 919 871 7.28      
16 A" 841 796 8.64      
17 A" 799 757 42.80      
18 A" 717 679 79.73      
19 A" 694 657 32.92      
20 A" 630 597 0.03      
21 A" 517 490 49.62      

Unscaled Zero Point Vibrational Energy (zpe) 15706.4 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 14875.6 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 MP2=FULL/6-311G*
ABC
0.32133 0.31356 0.15870

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.108 0.731 0.000
C2 1.115 0.306 0.000
H3 1.260 -1.902 0.000
C4 0.660 -1.004 0.000
H5 -1.488 -1.677 0.000
C6 -0.743 -0.894 0.000
N7 -1.146 0.390 0.000
H8 -0.046 2.089 0.000
N9 0.000 1.083 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.08022.76552.26024.32813.28193.27192.54662.1373
C21.08022.21211.38703.27252.21202.26262.12821.3594
H32.76552.21211.07962.75772.24303.32294.19943.2402
C42.26021.38701.07962.25091.40762.28143.17332.1896
H54.32813.27252.75772.25091.08102.09544.03363.1364
C63.28192.21202.24301.40761.08101.34543.06382.1125
N73.27192.26263.32292.28142.09541.34542.02461.3396
H82.54662.12824.19943.17334.03363.06382.02461.0071
N92.13731.35943.24022.18963.13642.11251.33961.0071

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 132.335 H1 C2 N9 121.928
C2 C4 H3 127.040 C2 C4 C6 104.657
C2 N9 N7 113.920 C2 N9 H8 127.506
H3 C4 C6 128.304 C4 C2 N9 105.737
C4 C6 H5 129.042 C4 C6 N7 111.913
H5 C6 N7 119.045 C6 N7 N9 103.773
N7 N9 H8 118.574
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability