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

using model chemistry: CID/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 CID/6-31G*
 hartrees
Energy at 0K-224.782810
Energy at 298.15K-224.787363
HF Energy-224.203019
Nuclear repulsion energy154.399605
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 CID/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 3382 3124 1.71      
2 A1 3368 3111 15.00      
3 A1 1574 1454 37.72      
4 A1 1408 1301 81.25      
5 A1 1237 1143 38.62      
6 A1 1076 994 6.62      
7 A1 972 898 3.31      
8 A2 962 889 0.00      
9 A2 605 559 0.00      
10 B1 933 862 1.99      
11 B1 861 795 15.25      
12 B1 574 531 42.57      
13 B2 3353 3097 0.54      
14 B2 1671 1544 31.56      
15 B2 1368 1263 0.02      
16 B2 1248 1152 25.43      
17 B2 1047 967 48.43      
18 B2 682 630 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 13160.5 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 12156.4 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 CID/6-31G*
ABC
0.36190 0.31185 0.16751

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.087
N2 0.000 1.156 0.367
N3 0.000 -1.156 0.367
C4 0.000 0.729 -0.866
C5 0.000 -0.729 -0.866
H6 0.000 0.000 2.164
H7 0.000 1.390 -1.718
H8 0.000 -1.390 -1.718

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.36141.36142.08402.08401.07723.13003.1300
N21.36142.31181.30502.25222.13632.09833.2906
N31.36142.31182.25221.30502.13633.29062.0983
C42.08401.30502.25221.45753.11611.07842.2834
C52.08402.25221.30501.45753.11612.28341.0784
H61.07722.13632.13633.11613.11614.12314.1231
H73.13002.09833.29061.07842.28344.12312.7793
H83.13003.29062.09832.28341.07844.12312.7793

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 102.788 C1 N3 C5 102.788
N2 C1 N3 116.211 N2 C1 H6 121.894
N2 C4 C5 109.107 N2 C4 H7 123.098
N3 C1 H6 121.894 N3 C5 C4 109.107
N3 C5 H8 123.098 C4 C5 H8 127.795
C5 C4 H7 127.795
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability