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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-208.103868
Energy at 298.15K-208.109971
HF Energy-207.643395
Nuclear repulsion energy158.944246
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 MP2/3-21G
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 3612 3448 71.51      
2 A1 3307 3157 0.05      
3 A1 3281 3132 3.81      
4 A1 1482 1414 2.36      
5 A1 1393 1330 10.76      
6 A1 1158 1105 0.19      
7 A1 1101 1051 7.41      
8 A1 1032 985 24.88      
9 A1 928 886 0.54      
10 A2 803 767 0.00      
11 A2 677 646 0.00      
12 A2 626 598 0.00      
13 B1 802 765 6.34      
14 B1 722 689 151.16      
15 B1 646 617 0.33      
16 B1 564 538 116.34      
17 B2 3297 3147 4.32      
18 B2 3271 3122 1.33      
19 B2 1555 1484 11.05      
20 B2 1438 1372 14.61      
21 B2 1342 1281 0.54      
22 B2 1185 1131 0.02      
23 B2 1064 1016 20.39      
24 B2 914 873 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 18099.8 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 17276.2 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 MP2/3-21G
ABC
0.29725 0.29371 0.14773

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.141
H2 0.000 0.000 2.153
C3 0.000 1.143 0.333
C4 0.000 -1.143 0.333
C5 0.000 0.720 -0.994
C6 0.000 -0.720 -0.994
H7 0.000 2.135 0.758
H8 0.000 -2.135 0.758
H9 0.000 1.363 -1.861
H10 0.000 -1.363 -1.861

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01221.39931.39932.25262.25262.16892.16893.29713.2971
H21.01222.14892.14893.22803.22802.55032.55034.23954.2395
C31.39932.14892.28551.39252.28691.07913.30492.20553.3308
C41.39932.14892.28552.28691.39253.30491.07913.33082.2055
C52.25263.22801.39252.28691.44002.25153.34921.08002.2565
C62.25263.22802.28691.39251.44003.34922.25152.25651.0800
H72.16892.55031.07913.30492.25153.34924.26962.73054.3697
H82.16892.55033.30491.07913.34922.25154.26964.36972.7305
H93.29714.23952.20553.33081.08002.25652.73054.36972.7260
H103.29714.23953.33082.20552.25651.08004.36972.73052.7260

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.579 N1 C3 H7 121.575
N1 C4 C6 107.579 N1 C4 H8 121.575
H2 N1 C3 125.252 H2 N1 C4 125.252
C3 N1 C4 109.497 C3 C5 C6 107.673
C3 C5 H9 125.788 C4 C6 C5 107.673
C4 C6 H10 125.788 C5 C3 H7 130.846
C5 C6 H10 126.540 C6 C4 H8 130.846
C6 C5 H9 126.540
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability