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

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

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/6-31G**
 hartrees
Energy at 0K-224.903821
Energy at 298.15K 
HF Energy-224.206799
Nuclear repulsion energy154.271209
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3339 3120 0.81      
2 A1 3329 3111 22.69      
3 A1 1517 1418 54.26      
4 A1 1424 1330 81.42      
5 A1 1234 1153 55.36      
6 A1 1088 1016 22.94      
7 A1 946 884 1.95      
8 A2 1010 944 0.00      
9 A2 610 570 0.00      
10 B1 968 904 3.81      
11 B1 897 838 8.97      
12 B1 537 501 42.56      
13 B2 3313 3095 0.07      
14 B2 1693 1582 56.50      
15 B2 1341 1253 0.04      
16 B2 1244 1163 37.94      
17 B2 1000 934 45.37      
18 B2 282i 264i 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 12603.0 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 11776.3 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/6-31G**
ABC
0.36227 0.31109 0.16737

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.083
N2 0.000 1.165 0.369
N3 0.000 -1.165 0.369
C4 0.000 0.718 -0.866
C5 0.000 -0.718 -0.866
H6 0.000 0.000 2.161
H7 0.000 1.376 -1.721
H8 0.000 -1.376 -1.721

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.36601.36602.07652.07651.07853.12353.1235
N21.36602.32981.31352.25182.13722.10153.2902
N31.36602.32982.25181.31352.13723.29022.1015
C42.07651.31352.25181.43593.11091.07932.2617
C52.07652.25181.31351.43593.11092.26171.0793
H61.07852.13722.13723.11093.11094.11924.1192
H73.12352.10153.29021.07932.26174.11922.7511
H83.12353.29022.10152.26171.07934.11922.7511

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 101.590 C1 N3 C5 101.590
N2 C1 N3 117.034 N2 C1 H6 121.483
N2 C4 C5 109.893 N2 C4 H7 122.570
N3 C1 H6 121.483 N3 C5 C4 109.893
N3 C5 H8 122.570 C4 C5 H8 127.537
C5 C4 H7 127.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability