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All results from a given calculation for C4H5N (Pyrrole)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)/6-31G(2df,p)
 hartrees
Energy at 0K-209.701534
Energy at 298.15K 
HF Energy-208.830566
Nuclear repulsion energy160.714660
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 CCSD(T)/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 A1 3725 3725        
2 A1 3301 3301        
3 A1 3279 3279        
4 A1 1515 1515        
5 A1 1424 1424        
6 A1 1171 1171        
7 A1 1106 1106        
8 A1 1042 1042        
9 A1 889 889        
10 A2 847 847        
11 A2 690 690        
12 A2 614 614        
13 B1 814 814        
14 B1 741 741        
15 B1 635 635        
16 B1 459 459        
17 B2 3293 3293        
18 B2 3268 3268        
19 B2 1582 1582        
20 B2 1477 1477        
21 B2 1312 1312        
22 B2 1175 1175        
23 B2 1076 1076        
24 B2 867 867        

Unscaled Zero Point Vibrational Energy (zpe) 18150.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18150.2 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 CCSD(T)/6-31G(2df,p)
ABC
0.30462 0.30006 0.15116

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.122
H2 0.000 0.000 2.127
C3 0.000 1.125 0.332
C4 0.000 -1.125 0.332
C5 0.000 0.714 -0.984
C6 0.000 -0.714 -0.984
H7 0.000 2.110 0.771
H8 0.000 -2.110 0.771
H9 0.000 1.363 -1.848
H10 0.000 -1.363 -1.848

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00431.37461.37462.22462.22462.13962.13963.26763.2676
H21.00432.11792.11793.19213.19212.50862.50864.20144.2014
C31.37462.11792.24981.37912.26201.07873.26492.19273.3075
C41.37462.11792.24982.26201.37913.26491.07873.30752.1927
C52.22463.19211.37912.26201.42892.24253.32571.07952.2494
C62.22463.19212.26201.37911.42893.32572.24252.24941.0795
H72.13962.50861.07873.26492.24253.32574.22092.72294.3495
H82.13962.50863.26491.07873.32572.24254.22094.34952.7229
H93.26764.20142.19273.30751.07952.24942.72294.34952.7254
H103.26764.20143.30752.19272.24941.07954.34952.72292.7254

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.770 N1 C3 H7 120.935
N1 C4 C6 107.770 N1 C4 H8 120.935
H2 N1 C3 125.085 H2 N1 C4 125.085
C3 N1 C4 109.831 C3 C5 C6 107.315
C3 C5 H9 125.777 C4 C6 C5 107.315
C4 C6 H10 125.777 C5 C3 H7 131.295
C5 C6 H10 126.908 C6 C4 H8 131.295
C6 C5 H9 126.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability