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

using model chemistry: MP2=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-225.569677
Energy at 298.15K-225.575643
HF Energy-224.832332
Nuclear repulsion energy162.267079
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 MP2=FULL/cc-pVDZ
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' 3683 3500 75.68      
2 A' 3331 3166 0.59      
3 A' 3308 3143 0.79      
4 A' 3300 3137 3.55      
5 A' 1545 1469 5.64      
6 A' 1523 1447 19.63      
7 A' 1489 1416 11.95      
8 A' 1381 1312 7.64      
9 A' 1273 1210 0.85      
10 A' 1200 1141 3.70      
11 A' 1150 1093 2.52      
12 A' 1103 1049 29.90      
13 A' 1084 1030 17.95      
14 A' 932 886 2.09      
15 A' 895 851 7.19      
16 A" 846 804 9.43      
17 A" 789 749 43.65      
18 A" 715 680 20.89      
19 A" 685 651 0.00      
20 A" 650 618 22.28      
21 A" 533 507 75.65      

Unscaled Zero Point Vibrational Energy (zpe) 15707.8 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 14928.7 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 MP2=FULL/cc-pVDZ
ABC
0.32419 0.30764 0.15785

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.114 0.000
C2 -1.090 0.281 0.000
C3 1.122 0.309 0.000
N4 -0.747 -0.998 0.000
C5 0.637 -0.992 0.000
H6 -0.013 2.127 0.000
H7 -2.110 0.669 0.000
H8 2.131 0.719 0.000
H9 1.208 -1.919 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.37141.38122.23982.19951.01352.15622.16683.2649
C21.37142.21241.32402.14512.13691.09093.25003.1818
C31.38122.21242.28091.38792.14393.25201.08852.2298
N42.23981.32402.28091.38433.20992.15223.35102.1619
C52.19952.14511.38791.38433.18573.20932.27091.0896
H61.01352.13692.14393.20993.18572.55402.56484.2268
H72.15621.09093.25202.15223.20932.55404.24054.2078
H82.16683.25001.08853.35102.27092.56484.24052.7949
H93.26493.18182.22982.16191.08964.22684.20782.7949

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 112.383 N1 C2 H7 121.837
N1 C3 C5 105.175 N1 C3 H8 122.208
C2 N1 C3 106.978 C2 N1 H6 126.627
C2 N4 C5 104.735 C3 N1 H6 126.395
C3 C5 N4 110.729 C3 C5 H9 127.903
N4 C2 H7 125.779 N4 C5 H9 121.368
C5 C3 H8 132.617
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability