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

using model chemistry: ROMP2/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
Energy calculated at ROMP2/6-31G
 hartrees
Energy at 0K-224.535597
Energy at 298.15K-224.539791
HF Energy-224.050610
Nuclear repulsion energy149.322863
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 ROMP2/6-31G
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 3328 3328        
2 A1 3296 3296        
3 A1 1526 1526        
4 A1 1319 1319        
5 A1 1109 1109        
6 A1 960 960        
7 A1 879 879        
8 A2 795 795        
9 A2 558 558        
10 B1 765 765        
11 B1 722 722        
12 B1 495 495        
13 B2 3282 3282        
14 B2 1452 1452        
15 B2 1288 1288        
16 B2 1173 1173        
17 B2 935 935        
18 B2 600 600        

Unscaled Zero Point Vibrational Energy (zpe) 12240.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12240.7 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 ROMP2/6-31G
ABC
0.33563 0.29316 0.15648

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.144
N2 0.000 1.195 0.373
N3 0.000 -1.195 0.373
C4 0.000 0.748 -0.901
C5 0.000 -0.748 -0.901
H6 0.000 0.000 2.225
H7 0.000 1.417 -1.753
H8 0.000 -1.417 -1.753

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.42241.42242.17732.17731.08103.22513.2251
N21.42242.39051.34972.32382.20432.13743.3682
N31.42242.39052.32381.34972.20433.36822.1374
C42.17731.34972.32381.49693.21401.08342.3275
C52.17732.32381.34971.49693.21402.32751.0834
H61.08102.20432.20433.21403.21404.22294.2229
H73.22512.13743.36821.08342.32754.22292.8348
H83.22513.36822.13742.32751.08344.22292.8348

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 103.495 C1 N3 C5 103.495
N2 C1 N3 114.346 N2 C1 H6 122.827
N2 C4 C5 109.333 N2 C4 H7 122.537
N3 C1 H6 122.827 N3 C5 C4 109.333
N3 C5 H8 122.537 C4 C5 H8 128.130
C5 C4 H7 128.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability