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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: PBEPBE/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 PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-209.916805
Energy at 298.15K-209.922729
HF Energy-209.916805
Nuclear repulsion energy160.300825
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 PBEPBE/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 3610 3572 50.00      
2 A1 3213 3180 0.19      
3 A1 3192 3159 3.57      
4 A1 1466 1451 6.82      
5 A1 1392 1377 3.02      
6 A1 1154 1142 2.51      
7 A1 1077 1066 4.45      
8 A1 1016 1006 23.89      
9 A1 869 860 0.02      
10 A2 824 815 0.00      
11 A2 641 635 0.00      
12 A2 609 603 0.00      
13 B1 772 764 11.81      
14 B1 706 699 101.09      
15 B1 627 620 2.32      
16 B1 464 459 56.43      
17 B2 3206 3173 4.42      
18 B2 3181 3148 2.03      
19 B2 1534 1518 3.64      
20 B2 1425 1411 5.21      
21 B2 1261 1248 2.57      
22 B2 1138 1126 2.83      
23 B2 1043 1033 22.89      
24 B2 844 835 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 17631.0 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 17449.4 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 PBEPBE/6-31G(2df,p)
ABC
0.30354 0.29841 0.15048

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.123
H2 0.000 0.000 2.135
C3 0.000 1.128 0.334
C4 0.000 -1.128 0.334
C5 0.000 0.713 -0.987
C6 0.000 -0.713 -0.987
H7 0.000 2.119 0.778
H8 0.000 -2.119 0.778
H9 0.000 1.365 -1.857
H10 0.000 -1.365 -1.857

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01201.37651.37652.22732.22732.14732.14733.27793.2779
H21.01202.12502.12503.20253.20252.51672.51674.21914.2191
C31.37652.12502.25581.38492.26591.08613.27742.20413.3188
C41.37652.12502.25582.26591.38493.27741.08613.31882.2041
C52.22733.20251.38492.26591.42582.25663.33701.08712.2523
C62.22733.20252.26591.38491.42583.33702.25662.25231.0871
H72.14732.51671.08613.27742.25663.33704.23862.74094.3681
H82.14732.51673.27741.08613.33702.25664.23864.36812.7409
H93.27794.21912.20413.31881.08712.25232.74094.36812.7291
H103.27794.21913.31882.20412.25231.08714.36812.74092.7291

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.533 N1 C3 H7 120.923
N1 C4 C6 107.533 N1 C4 H8 120.923
H2 N1 C3 124.972 H2 N1 C4 124.972
C3 N1 C4 110.056 C3 C5 C6 107.439
C3 C5 H9 125.733 C4 C6 C5 107.439
C4 C6 H10 125.733 C5 C3 H7 131.544
C5 C6 H10 126.828 C6 C4 H8 131.544
C6 C5 H9 126.828
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.214      
2 H 0.261      
3 C -0.091      
4 C -0.091      
5 C -0.143      
6 C -0.143      
7 H 0.116      
8 H 0.116      
9 H 0.094      
10 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.899 1.899
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.626 0.000 0.000
y 0.000 -26.512 0.000
z 0.000 0.000 -23.237
Traceless
 xyz
x -7.752 0.000 0.000
y 0.000 1.419 0.000
z 0.000 0.000 6.333
Polar
3z2-r212.665
x2-y2-6.114
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.313 0.000 0.000
y 0.000 8.277 0.000
z 0.000 0.000 8.054


<r2> (average value of r2) Å2
<r2> 85.750
(<r2>)1/2 9.260