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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-209.784198
Energy at 298.15K-209.779268
HF Energy-208.804712
Nuclear repulsion energy162.099990
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3934 3934 78.42      
2 A1 3436 3436 0.21      
3 A1 3411 3411 9.72      
4 A1 1643 1643 15.83      
5 A1 1542 1542 6.34      
6 A1 1260 1260 2.88      
7 A1 1157 1157 26.31      
8 A1 1105 1105 25.97      
9 A1 964 964 0.73      
10 A2 984 984 0.00      
11 A2 796 796 0.00      
12 A2 676 676 0.00      
13 B1 954 954 0.38      
14 B1 826 826 131.77      
15 B1 682 682 0.15      
16 B1 480 480 119.17      
17 B2 3430 3430 13.74      
18 B2 3398 3398 4.81      
19 B2 1741 1741 9.59      
20 B2 1598 1598 9.63      
21 B2 1424 1424 1.16      
22 B2 1248 1248 1.45      
23 B2 1160 1160 18.49      
24 B2 942 942 2.72      

Unscaled Zero Point Vibrational Energy (zpe) 19395.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19395.8 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 CBS-Q
ABC
0.30437 0.29807 0.15059

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.114
H2 0.000 0.000 2.105
C3 0.000 1.113 0.327
C4 0.000 -1.113 0.327
C5 0.000 0.714 -0.973
C6 0.000 -0.714 -0.973
H7 0.000 2.095 0.758
H8 0.000 -2.095 0.758
H9 0.000 1.360 -1.831
H10 0.000 -1.360 -1.831

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N10.99101.36351.36352.20632.20632.12542.12543.24443.2444
H20.99102.09822.09823.16023.16022.49092.49094.16494.1649
C31.36352.09822.22621.35962.24271.07303.23742.17213.2824
C41.36352.09822.22622.24271.35963.23741.07303.28242.1721
C52.20633.16021.35962.24271.42892.21483.30061.07392.2451
C62.20633.16022.24271.35961.42893.30062.21482.24511.0739
H72.12542.49091.07303.23742.21483.30064.19082.69214.3183
H82.12542.49093.23741.07303.30062.21484.19084.31832.6921
H93.24444.16492.17213.28241.07392.24512.69214.31832.7203
H103.24444.16493.28242.17212.24511.07394.31832.69212.7203

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 108.230 N1 C3 H7 120.993
N1 C4 C6 108.230 N1 C4 H8 120.993
H2 N1 C3 125.280 H2 N1 C4 125.280
C3 N1 C4 109.439 C3 C5 C6 107.050
C3 C5 H9 125.989 C4 C6 C5 107.050
C4 C6 H10 125.989 C5 C3 H7 130.776
C5 C6 H10 126.961 C6 C4 H8 130.776
C6 C5 H9 126.961
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability