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All results from a given calculation for C3H3N2 (imidazolyl radical)

using model chemistry: MP3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
Energy calculated at MP3/TZVP
 hartrees
Energy at 0K-224.990889
Energy at 298.15K-224.995166
HF Energy-224.268085
Nuclear repulsion energy154.332883
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/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3322 3107 0.05      
2 A1 3308 3094 16.77      
3 A1 1525 1426 46.85      
4 A1 1391 1301 77.20      
5 A1 1205 1127 49.02      
6 A1 1048 980 10.76      
7 A1 960 898 1.11      
8 A2 862 806 0.00      
9 A2 579 542 0.00      
10 B1 853 798 0.92      
11 B1 834 780 19.35      
12 B1 530 496 35.65      
13 B2 3293 3079 0.00      
14 B2 1654 1547 50.19      
15 B2 1340 1253 0.30      
16 B2 1235 1155 29.34      
17 B2 1016 950 41.11      
18 B2 408 382 0.44      

Unscaled Zero Point Vibrational Energy (zpe) 12682.6 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 11860.8 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/TZVP
ABC
0.36228 0.31105 0.16736

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.087
N2 0.000 1.159 0.366
N3 0.000 -1.159 0.366
C4 0.000 0.727 -0.865
C5 0.000 -0.727 -0.865
H6 0.000 0.000 2.164
H7 0.000 1.386 -1.719
H8 0.000 -1.386 -1.719

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.36511.36512.08302.08301.07723.12963.1296
N21.36512.31821.30432.25242.13952.09703.2901
N31.36512.31822.25241.30432.13953.29012.0970
C42.08301.30432.25241.45453.11521.07862.2795
C52.08302.25241.30431.45453.11522.27951.0786
H61.07722.13952.13953.11523.11524.12304.1230
H73.12962.09703.29011.07862.27954.12302.7726
H83.12963.29012.09702.27951.07864.12302.7726

picture of imidazolyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C4 102.553 C1 N3 C5 102.553
N2 C1 N3 116.224 N2 C1 H6 121.888
N2 C4 C5 109.335 N2 C4 H7 123.002
N3 C1 H6 121.888 N3 C5 C4 109.335
N3 C5 H8 123.002 C4 C5 H8 127.663
C5 C4 H7 127.663
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability