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

using model chemistry: CCSD=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-225.096097
Energy at 298.15K-225.100460
HF Energy-224.267715
Nuclear repulsion energy153.251286
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/TZVP
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 3292 3119 1.72      
2 A1 3278 3106 9.66      
3 A1 1485 1407 16.46      
4 A1 1342 1271 52.03      
5 A1 1168 1107 28.01      
6 A1 1007 954 1.97      
7 A1 933 884 2.17      
8 A2 766 726 0.00      
9 A2 548 519 0.00      
10 B1 784 743 0.01      
11 B1 750 711 26.35      
12 B1 511 484 27.93      
13 B2 3266 3094 0.53      
14 B2 1562 1480 19.14      
15 B2 1326 1256 0.09      
16 B2 1213 1149 8.68      
17 B2 1016 963 53.38      
18 B2 770 729 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 12507.5 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 11850.9 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/TZVP
ABC
0.35683 0.30663 0.16491

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.096
N2 0.000 1.165 0.369
N3 0.000 -1.165 0.369
C4 0.000 0.737 -0.873
C5 0.000 -0.737 -0.873
H6 0.000 0.000 2.174
H7 0.000 1.401 -1.724
H8 0.000 -1.401 -1.724

Atom - Atom Distances (Å)
  C1 N2 N3 C4 C5 H6 H7 H8
C11.37291.37292.10222.10221.07803.14863.1486
N21.37292.32931.31352.27122.14812.10623.3109
N31.37292.32932.27121.31352.14813.31092.1062
C42.10221.31352.27121.47393.13471.07932.3009
C52.10222.27121.31351.47393.13472.30091.0793
H61.07802.14812.14813.13473.13474.14194.1419
H73.14862.10623.31091.07932.30094.14192.8017
H83.14863.31092.10622.30091.07934.14192.8017

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 102.967 C1 N3 C5 102.967
N2 C1 N3 116.058 N2 C1 H6 121.971
N2 C4 C5 109.004 N2 C4 H7 123.037
N3 C1 H6 121.971 N3 C5 C4 109.004
N3 C5 H8 123.037 C4 C5 H8 127.959
C5 C4 H7 127.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability