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All results from a given calculation for C3H4N2 (1H-Imidazole)

using model chemistry: CID/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-311G*
 hartrees
Energy at 0K-225.493242
Energy at 298.15K-225.499338
HF Energy-224.859849
Nuclear repulsion energy164.312199
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 CID/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 A' 3840 3568 71.31      
2 A' 3389 3148 2.73      
3 A' 3361 3123 0.61      
4 A' 3359 3121 7.96      
5 A' 1662 1544 18.27      
6 A' 1599 1486 23.16      
7 A' 1538 1429 19.96      
8 A' 1448 1345 8.43      
9 A' 1348 1252 0.63      
10 A' 1221 1134 6.88      
11 A' 1209 1123 1.08      
12 A' 1154 1072 19.87      
13 A' 1130 1050 45.04      
14 A' 986 916 2.26      
15 A' 950 882 7.16      
16 A" 908 843 0.54      
17 A" 885 822 35.39      
18 A" 769 714 49.03      
19 A" 708 658 8.73      
20 A" 669 622 13.64      
21 A" 531 493 117.06      

Unscaled Zero Point Vibrational Energy (zpe) 16330.6 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 15172.7 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 CID/6-311G*
ABC
0.32979 0.31777 0.16183

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.100 0.000
C2 -1.079 0.279 0.000
C3 1.113 0.296 0.000
N4 -0.742 -0.976 0.000
C5 0.632 -0.978 0.000
H6 -0.011 2.098 0.000
H7 -2.087 0.657 0.000
H8 2.110 0.693 0.000
H9 1.189 -1.897 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.35601.37312.20522.17220.99762.13332.14873.2248
C21.35602.19151.29932.12292.10911.07633.21543.1429
C31.37312.19152.24901.36102.12403.21951.07352.1942
N42.20521.29932.24901.37453.15972.11493.30472.1397
C52.17222.12291.36101.37453.14223.17222.23061.0749
H60.99762.10912.12403.15973.14222.52672.54404.1715
H72.13331.07633.21952.11493.17222.52674.19654.1535
H82.14873.21541.07353.30472.23062.54404.19652.7493
H93.22483.14292.19422.13971.07494.17154.15352.7493

picture of 1H-Imidazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 N4 112.281 N1 C2 H7 122.166
N1 C3 C5 105.207 N1 C3 H8 122.381
C2 N1 C3 106.834 C2 N1 H6 126.638
C2 N4 C5 105.077 C3 N1 H6 126.528
C3 C5 N4 110.602 C3 C5 H9 128.135
N4 C2 H7 125.553 N4 C5 H9 121.264
C5 C3 H8 132.413
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability