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

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-224.919601
Energy at 298.15K 
HF Energy-224.213562
Nuclear repulsion energy154.106016
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/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3343 3139 0.70      
2 A1 3332 3129 17.93      
3 A1 1498 1407 58.70      
4 A1 1418 1331 89.17      
5 A1 1238 1162 57.00      
6 A1 1083 1018 18.99      
7 A1 943 886 1.07      
8 A2 977 918 0.00      
9 A2 594 558 0.00      
10 B1 963 905 2.44      
11 B1 887 833 18.03      
12 B1 528 496 43.77      
13 B2 3315 3113 0.54      
14 B2 1679 1577 82.13      
15 B2 1334 1253 0.21      
16 B2 1239 1163 44.66      
17 B2 999 938 41.26      
18 B2 262i 246i 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 12553.6 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 11790.3 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/6-31+G**
ABC
0.36048 0.31124 0.16703

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.086
N2 0.000 1.164 0.370
N3 0.000 -1.164 0.370
C4 0.000 0.718 -0.868
C5 0.000 -0.718 -0.868
H6 0.000 0.000 2.164
H7 0.000 1.378 -1.722
H8 0.000 -1.378 -1.722

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.36671.36672.08242.08241.07823.12833.1283
N21.36672.32811.31612.25332.13882.10323.2925
N31.36672.32812.25331.31612.13883.29252.1032
C42.08241.31612.25331.43683.11661.07912.2638
C52.08242.25331.31611.43683.11662.26381.0791
H61.07822.13882.13883.11663.11664.12374.1237
H73.12832.10323.29251.07912.26384.12372.7564
H83.12833.29252.10322.26381.07914.12372.7564

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 101.808 C1 N3 C5 101.808
N2 C1 N3 116.800 N2 C1 H6 121.600
N2 C4 C5 109.792 N2 C4 H7 122.514
N3 C1 H6 121.600 N3 C5 C4 109.792
N3 C5 H8 122.514 C4 C5 H8 127.694
C5 C4 H7 127.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability