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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-209.193816
Energy at 298.15K 
HF Energy-208.724979
Nuclear repulsion energy158.758504
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/6-31G
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 3684 3500 60.23      
2 A1 3298 3133 0.24      
3 A1 3272 3108 7.59      
4 A1 1496 1421 7.35      
5 A1 1426 1355 8.65      
6 A1 1162 1104 0.07      
7 A1 1118 1062 6.13      
8 A1 1047 995 30.56      
9 A1 916 870 0.59      
10 A2 745 708 0.00      
11 A2 614 583 0.00      
12 A2 571 543 0.00      
13 B1 750 713 46.88      
14 B1 673 640 138.40      
15 B1 623 592 6.82      
16 B1 526 499 99.85      
17 B2 3288 3124 8.51      
18 B2 3259 3097 2.50      
19 B2 1574 1495 8.41      
20 B2 1471 1398 18.99      
21 B2 1344 1277 0.00      
22 B2 1198 1138 0.43      
23 B2 1084 1030 19.67      
24 B2 898 854 1.03      

Unscaled Zero Point Vibrational Energy (zpe) 18019.2 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 17120.1 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/6-31G
ABC
0.29635 0.29328 0.14741

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.138
H2 0.000 0.000 2.148
C3 0.000 1.145 0.336
C4 0.000 -1.145 0.336
C5 0.000 0.720 -0.995
C6 0.000 -0.720 -0.995
H7 0.000 2.138 0.767
H8 0.000 -2.138 0.767
H9 0.000 1.367 -1.866
H10 0.000 -1.367 -1.866

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01001.39811.39812.25192.25192.17042.17043.30063.3006
H21.01002.14402.14403.22513.22512.54572.54574.24064.2406
C31.39812.14402.28941.39692.29111.08343.31142.21263.3399
C41.39812.14402.28942.29111.39693.31141.08343.33992.2126
C52.25193.22511.39692.29111.44052.26233.35841.08452.2615
C62.25193.22512.29111.39691.44053.35842.26232.26151.0845
H72.17042.54571.08343.31142.26233.35844.27692.74384.3842
H82.17042.54573.31141.08343.35842.26234.27694.38422.7438
H93.30064.24062.21263.33991.08452.26152.74384.38422.7340
H103.30064.24063.33992.21262.26151.08454.38422.74382.7340

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.351 N1 C3 H7 121.481
N1 C4 C6 107.351 N1 C4 H8 121.481
H2 N1 C3 125.041 H2 N1 C4 125.041
C3 N1 C4 109.919 C3 C5 C6 107.690
C3 C5 H9 125.699 C4 C6 C5 107.690
C4 C6 H10 125.699 C5 C3 H7 131.168
C5 C6 H10 126.611 C6 C4 H8 131.168
C6 C5 H9 126.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability