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

using model chemistry: CCSD=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
Energy calculated at CCSD=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-224.978095
Energy at 298.15K-224.982542
HF Energy-224.232019
Nuclear repulsion energy151.995663
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 CCSD=FULL/aug-cc-pVDZ
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 3276 3276 0.95      
2 A1 3265 3265 9.24      
3 A1 1477 1477 14.49      
4 A1 1319 1319 48.08      
5 A1 1160 1160 22.97      
6 A1 1003 1003 1.30      
7 A1 913 913 2.80      
8 A2 869 869 0.00      
9 A2 558 558 0.00      
10 B1 866 866 0.46      
11 B1 770 770 23.79      
12 B1 530 530 29.44      
13 B2 3251 3251 0.35      
14 B2 1540 1540 21.01      
15 B2 1294 1294 0.01      
16 B2 1186 1186 6.71      
17 B2 1011 1011 54.24      
18 B2 787 787 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 12536.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12536.3 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 CCSD=FULL/aug-cc-pVDZ
ABC
0.35072 0.30201 0.16227

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.104
N2 0.000 1.174 0.373
N3 0.000 -1.174 0.373
C4 0.000 0.742 -0.880
C5 0.000 -0.742 -0.880
H6 0.000 0.000 2.193
H7 0.000 1.414 -1.740
H8 0.000 -1.414 -1.740

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.38251.38252.11872.11871.08923.17603.1760
N21.38252.34731.32622.28952.16552.12703.3408
N31.38252.34732.28951.32622.16553.34082.1270
C42.11871.32622.28951.48393.16211.09082.3206
C52.11872.28951.32621.48393.16212.32061.0908
H61.08922.16552.16553.16213.16214.17964.1796
H73.17602.12703.34081.09082.32064.17962.8273
H83.17603.34082.12702.32061.09084.17962.8273

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 102.905 C1 N3 C5 102.905
N2 C1 N3 116.193 N2 C1 H6 121.903
N2 C4 C5 108.998 N2 C4 H7 122.993
N3 C1 H6 121.903 N3 C5 C4 108.998
N3 C5 H8 122.993 C4 C5 H8 128.009
C5 C4 H7 128.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability