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

using model chemistry: CCD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-224.977410
Energy at 298.15K-224.981807
HF Energy-224.251956
Nuclear repulsion energy153.800472
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 CCD/6-311G**
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 3279 3132 0.38      
2 A1 3265 3119 19.33      
3 A1 1526 1458 44.45      
4 A1 1375 1314 70.08      
5 A1 1199 1145 44.32      
6 A1 1041 994 8.82      
7 A1 944 902 2.45      
8 A2 969 926 0.00      
9 A2 596 570 0.00      
10 B1 925 883 2.42      
11 B1 857 819 15.12      
12 B1 546 522 38.05      
13 B2 3250 3104 0.19      
14 B2 1646 1572 43.72      
15 B2 1315 1256 0.24      
16 B2 1217 1163 24.77      
17 B2 1004 959 42.55      
18 B2 475 453 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 12714.6 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 12143.8 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 CCD/6-311G**
ABC
0.36073 0.30815 0.16619

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.088
N2 0.000 1.164 0.368
N3 0.000 -1.164 0.368
C4 0.000 0.731 -0.866
C5 0.000 -0.731 -0.866
H6 0.000 0.000 2.171
H7 0.000 1.394 -1.725
H8 0.000 -1.394 -1.725

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.36921.36922.08682.08681.08303.13933.1393
N21.36922.32851.30792.26172.14672.10483.3050
N31.36922.32852.26171.30792.14673.30502.1048
C42.08681.30792.26171.46213.12431.08452.2919
C52.08682.26171.30791.46213.12432.29191.0845
H61.08302.14672.14673.12433.12434.13774.1377
H73.13932.10483.30501.08452.29194.13772.7884
H83.13933.30502.10482.29191.08454.13772.7884

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 102.408 C1 N3 C5 102.408
N2 C1 N3 116.498 N2 C1 H6 121.751
N2 C4 C5 109.343 N2 C4 H7 122.961
N3 C1 H6 121.751 N3 C5 C4 109.343
N3 C5 H8 122.961 C4 C5 H8 127.696
C5 C4 H7 127.696
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability