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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-209.737238
Energy at 298.15K-209.743299
HF Energy-208.890786
Nuclear repulsion energy161.172036
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3702 3522 82.97      
2 A1 3312 3151 0.02      
3 A1 3292 3132 1.07      
4 A1 1510 1437 7.74      
5 A1 1435 1365 3.27      
6 A1 1178 1121 2.22      
7 A1 1108 1055 5.14      
8 A1 1046 995 27.02      
9 A1 891 848 0.18      
10 A2 850 809 0.00      
11 A2 672 640 0.00      
12 A2 615 585 0.00      
13 B1 817 777 6.13      
14 B1 730 694 158.03      
15 B1 648 617 1.25      
16 B1 496 472 63.09      
17 B2 3305 3145 0.95      
18 B2 3281 3122 1.56      
19 B2 1561 1486 1.33      
20 B2 1485 1413 10.53      
21 B2 1313 1249 1.20      
22 B2 1170 1113 2.47      
23 B2 1068 1016 24.48      
24 B2 868 826 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 18176.2 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 17294.7 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/Def2TZVPP
ABC
0.30703 0.30116 0.15203

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.118
H2 0.000 0.000 2.121
C3 0.000 1.122 0.334
C4 0.000 -1.122 0.334
C5 0.000 0.708 -0.984
C6 0.000 -0.708 -0.984
H7 0.000 2.105 0.770
H8 0.000 -2.105 0.770
H9 0.000 1.355 -1.844
H10 0.000 -1.355 -1.844

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00361.36871.36872.21772.21772.13342.13343.25653.2565
H21.00362.11052.11053.18503.18502.50162.50164.19004.1900
C31.36872.11052.24411.38122.25531.07503.25612.18993.2979
C41.36872.11052.24412.25531.38123.25611.07503.29792.1899
C52.21773.18501.38122.25531.41662.24153.31481.07572.2351
C62.21773.18502.25531.38121.41663.31482.24152.23511.0757
H72.13342.50161.07503.25612.24153.31484.20962.71864.3356
H82.13342.50163.25611.07503.31482.24154.20964.33562.7186
H93.25654.19002.18993.29791.07572.23512.71864.33562.7096
H103.25654.19003.29792.18992.23511.07574.33562.71862.7096

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.506 N1 C3 H7 121.157
N1 C4 C6 107.506 N1 C4 H8 121.157
H2 N1 C3 124.939 H2 N1 C4 124.939
C3 N1 C4 110.123 C3 C5 C6 107.432
C3 C5 H9 125.624 C4 C6 C5 107.432
C4 C6 H10 125.624 C5 C3 H7 131.337
C5 C6 H10 126.944 C6 C4 H8 131.337
C6 C5 H9 126.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability