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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: CCSD=FULL/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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-209.703537
Energy at 298.15K 
HF Energy-208.831947
Nuclear repulsion energy161.606932
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=FULL/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 3771 3551 77.42      
2 A1 3331 3137 0.33      
3 A1 3309 3115 1.78      
4 A1 1543 1453 9.42      
5 A1 1453 1368 4.97      
6 A1 1195 1125 3.23      
7 A1 1121 1055 10.22      
8 A1 1058 996 24.52      
9 A1 908 855 0.19      
10 A2 882 830 0.00      
11 A2 723 681 0.00      
12 A2 638 601 0.00      
13 B1 849 800 2.03      
14 B1 765 720 114.78      
15 B1 654 616 0.40      
16 B1 486 458 76.63      
17 B2 3323 3129 3.38      
18 B2 3299 3106 1.57      
19 B2 1620 1525 5.36      
20 B2 1506 1418 11.14      
21 B2 1333 1255 1.53      
22 B2 1194 1124 1.89      
23 B2 1096 1032 17.48      
24 B2 884 832 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 18468.3 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 17389.7 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 CCSD=FULL/6-31G(2df,p)
ABC
0.30790 0.30366 0.15288

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.116
H2 0.000 0.000 2.116
C3 0.000 1.118 0.330
C4 0.000 -1.118 0.330
C5 0.000 0.712 -0.978
C6 0.000 -0.712 -0.978
H7 0.000 2.101 0.765
H8 0.000 -2.101 0.765
H9 0.000 1.358 -1.839
H10 0.000 -1.358 -1.839

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.00051.36651.36652.21162.21162.13032.13033.25163.2516
H21.00052.10752.10753.17533.17532.49842.49844.18174.1817
C31.36652.10752.23541.36942.24871.07553.24822.18163.2909
C41.36652.10752.23542.24871.36943.24821.07553.29092.1816
C52.21163.17531.36942.24871.42322.22913.30901.07622.2412
C62.21163.17532.24871.36941.42323.30902.22912.24121.0762
H72.13032.49841.07553.24822.22913.30904.20242.70754.3293
H82.13032.49843.24821.07553.30902.22914.20244.32932.7075
H93.25164.18172.18163.29091.07622.24122.70754.32932.7157
H103.25164.18173.29092.18162.24121.07624.32932.70752.7157

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.873 N1 C3 H7 121.009
N1 C4 C6 107.873 N1 C4 H8 121.009
H2 N1 C3 125.124 H2 N1 C4 125.124
C3 N1 C4 109.752 C3 C5 C6 107.251
C3 C5 H9 125.842 C4 C6 C5 107.251
C4 C6 H10 125.842 C5 C3 H7 131.118
C5 C6 H10 126.908 C6 C4 H8 131.118
C6 C5 H9 126.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability