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

using model chemistry: CCSD=FULL/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/cc-pVDZ
 hartrees
Energy at 0K-224.939068
Energy at 298.15K-224.943534
HF Energy-224.220004
Nuclear repulsion energy152.138466
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/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 3281 3281 2.49      
2 A1 3269 3269 9.73      
3 A1 1502 1502 16.55      
4 A1 1326 1326 44.57      
5 A1 1166 1166 26.24      
6 A1 1004 1004 2.05      
7 A1 920 920 4.10      
8 A2 888 888 0.00      
9 A2 570 570 0.00      
10 B1 868 868 0.68      
11 B1 779 779 20.92      
12 B1 533 533 28.85      
13 B2 3255 3255 1.12      
14 B2 1563 1563 17.72      
15 B2 1301 1301 0.00      
16 B2 1194 1194 5.83      
17 B2 1015 1015 56.77      
18 B2 792 792 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 12612.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12612.7 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 CCSD=FULL/cc-pVDZ
ABC
0.35305 0.30127 0.16255

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.098
N2 0.000 1.176 0.373
N3 0.000 -1.176 0.373
C4 0.000 0.742 -0.877
C5 0.000 -0.742 -0.877
H6 0.000 0.000 2.190
H7 0.000 1.414 -1.739
H8 0.000 -1.414 -1.739

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.38151.38152.11042.11041.09163.17033.1703
N21.38152.35141.32332.28932.16422.12553.3417
N31.38152.35142.28931.32332.16423.34172.1255
C42.11041.32332.28931.48403.15571.09282.3217
C52.11042.28931.32331.48403.15572.32171.0928
H61.09162.16422.16423.15573.15574.17574.1757
H73.17032.12553.34171.09282.32174.17572.8276
H83.17033.34172.12552.32171.09284.17572.8276

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 102.542 C1 N3 C5 102.542
N2 C1 N3 116.652 N2 C1 H6 121.674
N2 C4 C5 109.132 N2 C4 H7 122.935
N3 C1 H6 121.674 N3 C5 C4 109.132
N3 C5 H8 122.935 C4 C5 H8 127.933
C5 C4 H7 127.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability