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

using model chemistry: MP3/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 MP3/TZVP
 hartrees
Energy at 0K-225.656820
Energy at 298.15K-225.662452
HF Energy-224.885588
Nuclear repulsion energy163.625061
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/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' 3757 3514 79.60      
2 A' 3354 3137 1.25      
3 A' 3327 3111 0.42      
4 A' 3325 3109 4.60      
5 A' 1608 1504 11.81      
6 A' 1553 1452 25.99      
7 A' 1490 1393 21.43      
8 A' 1403 1312 7.35      
9 A' 1321 1235 0.90      
10 A' 1183 1106 7.46      
11 A' 1176 1100 3.24      
12 A' 1126 1053 16.17      
13 A' 1104 1032 39.21      
14 A' 962 900 1.78      
15 A' 928 868 5.52      
16 A" 778 728 74.96      
17 A" 755 706 0.73      
18 A" 678 635 7.98      
19 A" 653 610 9.31      
20 A" 579 541 36.93      
21 A" 271 253 67.92      

Unscaled Zero Point Vibrational Energy (zpe) 15665.0 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 14649.9 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/TZVP
ABC
0.32720 0.31486 0.16046

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.105 0.000
C2 -1.084 0.280 0.000
C3 1.117 0.297 0.000
N4 -0.745 -0.981 0.000
C5 0.636 -0.982 0.000
H6 -0.013 2.107 0.000
H7 -2.092 0.659 0.000
H8 2.114 0.696 0.000
H9 1.194 -1.900 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36261.37812.21512.18151.00252.13922.15293.2340
C21.36262.20131.30632.13352.11841.07653.22533.1539
C31.37812.20132.25821.36662.13353.22921.07392.1992
N42.21511.30632.25821.38053.17412.12283.31432.1458
C52.18152.13351.36661.38053.15663.18342.23621.0750
H61.00252.11842.13353.17413.15662.53402.55224.1856
H72.13921.07653.22922.12283.18342.53404.20614.1655
H82.15293.22531.07393.31432.23622.55224.20612.7547
H93.23403.15392.19922.14581.07504.18564.16552.7547

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 112.176 N1 C2 H7 122.131
N1 C3 C5 105.271 N1 C3 H8 122.321
C2 N1 C3 106.869 C2 N1 H6 126.523
C2 N4 C5 105.106 C3 N1 H6 126.609
C3 C5 N4 110.579 C3 C5 H9 128.097
N4 C2 H7 125.693 N4 C5 H9 121.324
C5 C3 H8 132.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability