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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-225.408515
Energy at 298.15K-225.412942
HF Energy-225.146172
Nuclear repulsion energy153.101701
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 B2PLYP=FULL/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 3269 3269 3.65      
2 A1 3254 3254 16.03      
3 A1 1450 1450 14.02      
4 A1 1328 1328 54.32      
5 A1 1171 1171 30.49      
6 A1 1003 1003 2.36      
7 A1 922 922 3.29      
8 A2 882 882 0.00      
9 A2 569 569 0.00      
10 B1 872 872 0.25      
11 B1 767 767 25.79      
12 B1 517 517 31.33      
13 B2 3241 3241 1.42      
14 B2 1546 1546 19.37      
15 B2 1304 1304 0.02      
16 B2 1205 1205 7.70      
17 B2 1013 1013 71.49      
18 B2 765 765 1.64      

Unscaled Zero Point Vibrational Energy (zpe) 12538.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12538.4 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 B2PLYP=FULL/6-311G*
ABC
0.35647 0.30598 0.16465

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.094
N2 0.000 1.167 0.371
N3 0.000 -1.167 0.371
C4 0.000 0.735 -0.874
C5 0.000 -0.735 -0.874
H6 0.000 0.000 2.175
H7 0.000 1.405 -1.724
H8 0.000 -1.405 -1.724

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.37251.37252.10072.10071.08093.14843.1484
N21.37252.33421.31842.27372.14792.10893.3174
N31.37252.33422.27371.31842.14793.31742.1089
C42.10071.31842.27371.47023.13611.08202.3024
C52.10072.27371.31841.47023.13612.30241.0820
H61.08092.14792.14793.13613.13614.14404.1440
H73.14842.10893.31741.08202.30244.14402.8093
H83.14843.31742.10892.30241.08204.14402.8093

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 102.622 C1 N3 C5 102.622
N2 C1 N3 116.499 N2 C1 H6 121.751
N2 C4 C5 109.128 N2 C4 H7 122.639
N3 C1 H6 121.751 N3 C5 C4 109.128
N3 C5 H8 122.639 C4 C5 H8 128.232
C5 C4 H7 128.232
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability