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All results from a given calculation for C4H5N (2H-pyrrole)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-210.160485
Energy at 298.15K-210.166598
HF Energy-210.160485
Nuclear repulsion energy158.621805
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 B3LYP/6-31G(2df,p)
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' 3241 3127 8.07      
2 A' 3217 3105 5.08      
3 A' 3165 3054 26.04      
4 A' 3026 2920 7.16      
5 A' 1656 1598 8.58      
6 A' 1548 1494 11.42      
7 A' 1408 1359 13.90      
8 A' 1373 1325 16.46      
9 A' 1316 1270 0.19      
10 A' 1260 1216 0.17      
11 A' 1121 1082 5.58      
12 A' 1006 971 17.74      
13 A' 980 945 18.15      
14 A' 934 901 2.76      
15 A' 857 827 10.54      
16 A' 835 806 5.55      
17 A" 3052 2945 4.86      
18 A" 1160 1120 0.37      
19 A" 997 962 8.15      
20 A" 947 914 4.96      
21 A" 914 882 6.43      
22 A" 711 686 24.71      
23 A" 553 534 2.77      
24 A" 367 354 14.78      

Unscaled Zero Point Vibrational Energy (zpe) 17821.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 17198.2 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 B3LYP/6-31G(2df,p)
ABC
0.30389 0.28087 0.14999

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.200 0.337 0.000
C2 0.000 1.172 0.000
C3 -1.174 0.237 0.000
C4 -0.683 -1.014 0.000
C5 0.780 -0.880 0.000
H6 0.014 1.834 0.877
H7 0.014 1.834 -0.877
H8 -2.211 0.543 0.000
H9 -1.231 -1.947 0.000
H10 1.477 -1.714 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10
N11.46132.37532.31721.28732.10112.10113.41693.33542.0702
C21.46131.50052.29012.19471.09901.09902.29883.35273.2421
C32.37531.50051.34372.25002.17512.17511.08172.18423.2914
C42.31722.29011.34371.46883.06063.06062.18171.08182.2707
C51.28732.19472.25001.46882.95302.95303.31202.27651.0876
H62.10111.09902.17513.06062.95301.75362.71814.07613.9370
H72.10111.09902.17513.06062.95301.75362.71814.07613.9370
H83.41692.29881.08172.18173.31202.71812.71812.67554.3242
H93.33543.35272.18421.08182.27654.07614.07612.67552.7184
H102.07023.24213.29142.27071.08763.93703.93704.32422.7184

picture of 2H-pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 106.631 N1 C2 H6 109.490
N1 C2 H7 109.490 N1 C5 C4 114.280
N1 C5 H10 121.081 C2 N1 C5 105.796
C2 C3 C4 107.121 C2 C3 H8 125.020
C3 C2 H6 112.684 C3 C2 H7 112.684
C3 C4 C5 106.172 C3 C4 H9 128.123
C4 C3 H8 127.859 C4 C5 H10 124.639
C5 C4 H9 125.705 H6 C2 H7 105.847
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability