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

using model chemistry: MP2=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 MP2=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-224.940972
Energy at 298.15K 
HF Energy-224.231951
Nuclear repulsion energy153.324353
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 MP2=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 3296 3195 6.22      
2 A1 3287 3186 13.54      
3 A1 1465 1420 60.31      
4 A1 1400 1357 69.35      
5 A1 1229 1191 62.88      
6 A1 1068 1035 14.30      
7 A1 929 901 1.12      
8 A2 1017 986 0.00      
9 A2 600 581 0.00      
10 B1 989 959 2.05      
11 B1 892 865 15.25      
12 B1 532 515 39.75      
13 B2 3271 3170 0.63      
14 B2 1653 1602 80.23      
15 B2 1297 1257 0.17      
16 B2 1208 1171 41.46      
17 B2 988 957 43.61      
18 B2 280i 272i 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 12419.6 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 12037.1 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 MP2=FULL/aug-cc-pVDZ
ABC
0.35700 0.30814 0.16539

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.089
N2 0.000 1.170 0.373
N3 0.000 -1.170 0.373
C4 0.000 0.722 -0.872
C5 0.000 -0.722 -0.872
H6 0.000 0.000 2.179
H7 0.000 1.388 -1.735
H8 0.000 -1.388 -1.735

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.37191.37192.09012.09011.08943.14723.1472
N21.37192.33961.32312.26442.15182.11923.3144
N31.37192.33962.26441.32312.15183.31442.1192
C42.09011.32312.26441.44343.13521.09032.2793
C52.09012.26441.32311.44343.13522.27931.0903
H61.08942.15182.15183.13523.13524.15284.1528
H73.14722.11923.31441.09032.27934.15282.7759
H83.14723.31442.11922.27931.09034.15282.7759

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 101.697 C1 N3 C5 101.697
N2 C1 N3 117.014 N2 C1 H6 121.493
N2 C4 C5 109.797 N2 C4 H7 122.535
N3 C1 H6 121.493 N3 C5 C4 109.797
N3 C5 H8 122.535 C4 C5 H8 127.668
C5 C4 H7 127.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability