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

using model chemistry: B2PLYP=FULLultrafine/TZVP

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=FULLultrafine/TZVP
 hartrees
Energy at 0K-226.095465
Energy at 298.15K 
HF Energy-225.817582
Nuclear repulsion energy163.389155
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=FULLultrafine/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 A' 3674 3674 63.99      
2 A' 3307 3307 0.86      
3 A' 3280 3280 0.74      
4 A' 3278 3278 4.08      
5 A' 1559 1559 10.70      
6 A' 1507 1507 18.49      
7 A' 1440 1440 17.11      
8 A' 1370 1370 7.35      
9 A' 1294 1294 0.77      
10 A' 1161 1161 5.28      
11 A' 1157 1157 2.96      
12 A' 1104 1104 19.67      
13 A' 1082 1082 39.96      
14 A' 949 949 2.15      
15 A' 912 912 6.86      
16 A" 818 818 19.07      
17 A" 781 781 42.38      
18 A" 699 699 26.10      
19 A" 672 672 6.39      
20 A" 628 628 21.93      
21 A" 448 448 77.40      

Unscaled Zero Point Vibrational Energy (zpe) 15559.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15559.3 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 B2PLYP=FULLultrafine/TZVP
ABC
0.32604 0.31424 0.16001

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.104 0.000
C2 -1.089 0.282 0.000
C3 1.118 0.299 0.000
N4 -0.741 -0.984 0.000
C5 0.636 -0.982 0.000
H6 -0.010 2.109 0.000
H7 -2.097 0.660 0.000
H8 2.114 0.701 0.000
H9 1.196 -1.901 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36441.37742.21502.18031.00572.14392.15243.2333
C21.36442.20701.31272.13832.12251.07663.23083.1597
C31.37742.20702.25831.36842.13283.23541.07452.2007
N42.21501.31272.25831.37673.17842.13083.31522.1427
C52.18032.13831.36841.37673.15793.18812.24001.0758
H61.00572.12252.13283.17843.15792.54182.54864.1871
H72.14391.07663.23542.13083.18812.54184.21204.1711
H82.15243.23081.07453.31522.24002.54864.21202.7586
H93.23333.15972.20072.14271.07584.18714.17112.7586

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 111.650 N1 C2 H7 122.434
N1 C3 C5 105.126 N1 C3 H8 122.285
C2 N1 C3 107.214 C2 N1 H6 126.486
C2 N4 C5 105.306 C3 N1 H6 126.300
C3 C5 N4 110.704 C3 C5 H9 128.006
N4 C2 H7 125.915 N4 C5 H9 121.290
C5 C3 H8 132.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability