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

using model chemistry: MP3=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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-224.901120
Energy at 298.15K-224.905486
HF Energy-224.202277
Nuclear repulsion energy153.987433
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=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 3316 3111 0.54      
2 A1 3304 3100 16.79      
3 A1 1547 1451 43.62      
4 A1 1399 1313 80.13      
5 A1 1218 1143 46.90      
6 A1 1068 1002 13.07      
7 A1 956 897 2.48      
8 A2 964 904 0.00      
9 A2 603 565 0.00      
10 B1 933 876 3.24      
11 B1 863 809 13.38      
12 B1 553 519 42.74      
13 B2 3288 3086 0.28      
14 B2 1671 1568 37.36      
15 B2 1339 1257 0.06      
16 B2 1234 1158 29.72      
17 B2 1015 953 45.96      
18 B2 443 416 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 12857.3 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 12064.0 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=FULL/6-31G*
ABC
0.36081 0.30976 0.16667

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.088
N2 0.000 1.163 0.368
N3 0.000 -1.163 0.368
C4 0.000 0.726 -0.866
C5 0.000 -0.726 -0.866
H6 0.000 0.000 2.171
H7 0.000 1.389 -1.724
H8 0.000 -1.389 -1.724

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.36771.36772.08482.08481.08283.13633.1363
N21.36772.32571.30922.25672.14522.10423.2997
N31.36772.32572.25671.30922.14523.29972.1042
C42.08481.30922.25671.45273.12261.08382.2825
C52.08482.25671.30921.45273.12262.28251.0838
H61.08282.14522.14523.12263.12264.13504.1350
H73.13632.10423.29971.08382.28254.13502.7777
H83.13633.29972.10422.28251.08384.13502.7777

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 102.286 C1 N3 C5 102.286
N2 C1 N3 116.476 N2 C1 H6 121.762
N2 C4 C5 109.477 N2 C4 H7 122.844
N3 C1 H6 121.762 N3 C5 C4 109.477
N3 C5 H8 122.844 C4 C5 H8 127.679
C5 C4 H7 127.679
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability