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

using model chemistry: B2PLYP=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/STO-3G
 hartrees
Energy at 0K-222.989583
Energy at 298.15K-222.995204
HF Energy-222.882996
Nuclear repulsion energy158.976620
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/STO-3G
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' 3817 3817 56.66      
2 A' 3567 3567 9.56      
3 A' 3535 3535 13.75      
4 A' 3534 3534 16.82      
5 A' 1637 1637 13.60      
6 A' 1589 1589 9.02      
7 A' 1535 1535 11.35      
8 A' 1414 1414 13.67      
9 A' 1296 1296 0.34      
10 A' 1195 1195 4.13      
11 A' 1168 1168 12.42      
12 A' 1136 1136 8.41      
13 A' 1102 1102 6.04      
14 A' 953 953 1.13      
15 A' 918 918 3.48      
16 A" 913 913 0.73      
17 A" 819 819 15.83      
18 A" 785 785 9.23      
19 A" 660 660 0.31      
20 A" 646 646 11.07      
21 A" 451 451 84.97      

Unscaled Zero Point Vibrational Energy (zpe) 16334.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16334.4 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/STO-3G
ABC
0.31085 0.29534 0.15145

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.134 0.000
C2 -1.119 0.283 0.000
C3 1.143 0.307 0.000
N4 -0.770 -1.033 0.000
C5 0.665 -0.988 0.000
H6 -0.006 2.176 0.000
H7 -2.140 0.681 0.000
H8 2.152 0.727 0.000
H9 1.250 -1.911 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.40551.41112.29992.22361.04192.18742.19003.2923
C21.40552.26191.36132.18982.19581.09623.30043.2291
C31.41112.26192.33591.38022.19403.30441.09282.2211
N42.29991.36132.33591.43593.29882.19413.41142.2032
C52.22362.18981.38021.43593.23403.26372.26991.0937
H61.04192.19582.19403.29883.23402.60572.59884.2762
H72.18741.09623.30442.19413.26372.60574.29214.2679
H82.19003.30041.09283.41142.26992.59884.29212.7887
H93.29233.22912.22112.20321.09374.27624.26792.7887

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 112.444 N1 C2 H7 121.440
N1 C3 C5 105.612 N1 C3 H8 121.484
C2 N1 C3 106.843 C2 N1 H6 126.951
C2 N4 C5 103.017 C3 N1 H6 126.206
C3 C5 N4 112.083 C3 C5 H9 127.365
N4 C2 H7 126.116 N4 C5 H9 120.552
C5 C3 H8 132.904
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability