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

using model chemistry: MP3=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-225.735535
Energy at 298.15K-225.741599
HF Energy-224.838726
Nuclear repulsion energy164.038490
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 MP3=FULL/6-31G(2df,p)
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' 3793 3793 83.46      
2 A' 3367 3367 0.91      
3 A' 3340 3340 1.53      
4 A' 3338 3338 1.94      
5 A' 1611 1611 13.93      
6 A' 1559 1559 21.13      
7 A' 1498 1498 20.24      
8 A' 1408 1408 7.86      
9 A' 1316 1316 0.62      
10 A' 1192 1192 7.69      
11 A' 1187 1187 0.61      
12 A' 1134 1134 15.14      
13 A' 1108 1108 34.43      
14 A' 963 963 1.37      
15 A' 925 925 7.99      
16 A" 894 894 2.11      
17 A" 863 863 25.61      
18 A" 762 762 29.79      
19 A" 701 701 3.26      
20 A" 663 663 14.28      
21 A" 543 543 94.12      

Unscaled Zero Point Vibrational Energy (zpe) 16081.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16081.3 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 MP3=FULL/6-31G(2df,p)
ABC
0.32920 0.31620 0.16128

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.102 0.000
C2 -1.080 0.279 0.000
C3 1.113 0.298 0.000
N4 -0.743 -0.981 0.000
C5 0.633 -0.980 0.000
H6 -0.012 2.102 0.000
H7 -2.085 0.661 0.000
H8 2.108 0.699 0.000
H9 1.193 -1.896 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.35731.37292.21112.17580.99982.13132.14573.2271
C21.35732.19261.30412.12602.11201.07573.21483.1467
C31.37292.19262.25361.36432.12593.21871.07292.1956
N42.21111.30412.25361.37663.16782.12063.30902.1423
C52.17582.12601.36431.37663.14823.17562.23441.0743
H60.99982.11202.12593.16783.14822.52452.54144.1758
H72.13131.07573.21872.12063.17562.52454.19314.1584
H82.14573.21481.07293.30902.23442.54144.19312.7521
H93.22713.14672.19562.14231.07434.17584.15842.7521

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 112.347 N1 C2 H7 121.903
N1 C3 C5 105.286 N1 C3 H8 122.156
C2 N1 C3 106.845 C2 N1 H6 126.614
C2 N4 C5 104.913 C3 N1 H6 126.542
C3 C5 N4 110.609 C3 C5 H9 128.010
N4 C2 H7 125.749 N4 C5 H9 121.381
C5 C3 H8 132.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability