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

using model chemistry: MP3=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 MP3=FULL/cc-pVDZ
 hartrees
Energy at 0K-225.585655
Energy at 298.15K-225.591652
HF Energy-224.833810
Nuclear repulsion energy162.593149
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/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' 3749 3526 79.48      
2 A' 3346 3146 1.14      
3 A' 3318 3120 0.67      
4 A' 3314 3116 4.85      
5 A' 1606 1510 12.03      
6 A' 1559 1465 21.05      
7 A' 1504 1414 14.87      
8 A' 1403 1320 6.58      
9 A' 1299 1222 0.82      
10 A' 1193 1122 7.26      
11 A' 1165 1096 1.60      
12 A' 1115 1048 19.26      
13 A' 1095 1030 30.82      
14 A' 951 894 1.94      
15 A' 916 862 6.74      
16 A" 871 819 2.65      
17 A" 835 785 33.62      
18 A" 742 698 33.60      
19 A" 687 646 2.38      
20 A" 649 611 14.07      
21 A" 504 474 88.65      

Unscaled Zero Point Vibrational Energy (zpe) 15910.6 cm-1
Scaled (by 0.9403) Zero Point Vibrational Energy (zpe) 14960.8 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/cc-pVDZ
ABC
0.32442 0.30980 0.15847

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 1.113 0.000
C2 -1.088 0.280 0.000
C3 1.123 0.305 0.000
N4 -0.750 -0.992 0.000
C5 0.637 -0.990 0.000
H6 -0.015 2.122 0.000
H7 -2.108 0.665 0.000
H8 2.131 0.711 0.000
H9 1.206 -1.918 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 N4 C5 H6 H7 H8 H9
N11.36991.38332.23452.19711.00942.15472.16903.2622
C21.36992.21081.31672.14242.13171.09003.24813.1776
C31.38332.21082.27761.38262.14393.25051.08752.2243
N42.23451.31672.27761.38683.19982.14293.34682.1641
C52.19712.14241.38261.38683.17953.20542.26391.0889
H61.00942.13172.14393.19983.17952.55022.56844.2206
H72.15471.09003.25052.14293.20542.55024.23944.2022
H82.16903.24811.08753.34682.26392.56844.23942.7870
H93.26223.17762.22432.16411.08894.22064.20222.7870

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 112.530 N1 C2 H7 121.891
N1 C3 C5 105.191 N1 C3 H8 122.320
C2 N1 C3 106.832 C2 N1 H6 126.594
C2 N4 C5 104.796 C3 N1 H6 126.574
C3 C5 N4 110.652 C3 C5 H9 127.925
N4 C2 H7 125.579 N4 C5 H9 121.423
C5 C3 H8 132.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability