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

using model chemistry: B2PLYP=FULL/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-225.353277
Energy at 298.15K-225.357704
HF Energy-225.113570
Nuclear repulsion energy152.860286
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/6-31+G**
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 3297 3135 1.48      
2 A1 3282 3121 8.54      
3 A1 1457 1386 15.56      
4 A1 1332 1267 58.79      
5 A1 1174 1117 26.98      
6 A1 1012 962 2.59      
7 A1 919 874 2.10      
8 A2 870 828 0.00      
9 A2 559 532 0.00      
10 B1 876 833 0.12      
11 B1 772 734 27.44      
12 B1 516 491 31.90      
13 B2 3269 3109 0.20      
14 B2 1549 1473 24.39      
15 B2 1312 1248 0.01      
16 B2 1210 1151 7.93      
17 B2 1018 968 68.50      
18 B2 775 737 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 12599.5 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 11982.1 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 B2PLYP=FULL/6-31+G**
ABC
0.35417 0.30599 0.16416

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.098
N2 0.000 1.168 0.373
N3 0.000 -1.168 0.373
C4 0.000 0.735 -0.877
C5 0.000 -0.735 -0.877
H6 0.000 0.000 2.178
H7 0.000 1.401 -1.728
H8 0.000 -1.401 -1.728

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.37461.37462.10732.10731.07993.15453.1545
N21.37462.33531.32272.27612.14992.11393.3185
N31.37462.33532.27611.32272.14993.31852.1139
C42.10731.32272.27611.46923.14211.08112.2991
C52.10732.27611.32271.46923.14212.29911.0811
H61.07992.14992.14993.14213.14214.14984.1498
H73.15452.11393.31851.08112.29914.14982.8023
H83.15453.31852.11392.29911.08114.14982.8023

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 102.736 C1 N3 C5 102.736
N2 C1 N3 116.309 N2 C1 H6 121.846
N2 C4 C5 109.110 N2 C4 H7 122.824
N3 C1 H6 121.846 N3 C5 C4 109.110
N3 C5 H8 122.824 C4 C5 H8 128.066
C5 C4 H7 128.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability