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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-208.832672
Energy at 298.15K-208.839028
HF Energy-208.832672
Nuclear repulsion energy162.530907
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 HF/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 3935 3563 87.80      
2 A1 3419 3096 0.60      
3 A1 3395 3074 7.20      
4 A1 1636 1481 13.24      
5 A1 1530 1385 7.05      
6 A1 1256 1137 2.50      
7 A1 1150 1042 25.92      
8 A1 1100 996 23.80      
9 A1 963 872 0.58      
10 A2 987 894 0.00      
11 A2 808 732 0.00      
12 A2 677 613 0.00      
13 B1 960 869 0.18      
14 B1 834 755 119.80      
15 B1 684 619 0.10      
16 B1 494 448 96.62      
17 B2 3411 3089 12.51      
18 B2 3383 3063 3.57      
19 B2 1730 1566 9.51      
20 B2 1578 1429 9.29      
21 B2 1425 1290 1.02      
22 B2 1242 1124 0.93      
23 B2 1157 1048 17.04      
24 B2 940 851 2.49      

Unscaled Zero Point Vibrational Energy (zpe) 19345.3 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 17517.1 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 HF/6-31G(2df,p)
ABC
0.31035 0.30801 0.15459

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.111
H2 0.000 0.000 2.100
C3 0.000 1.110 0.325
C4 0.000 -1.110 0.325
C5 0.000 0.713 -0.970
C6 0.000 -0.713 -0.970
H7 0.000 2.090 0.755
H8 0.000 -2.090 0.755
H9 0.000 1.357 -1.826
H10 0.000 -1.357 -1.826

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N10.98911.36051.36052.20022.20022.12052.12053.23513.2351
H20.98912.09382.09383.15223.15222.48612.48614.15374.1537
C31.36052.09382.22101.35492.23691.06973.22942.16493.2730
C41.36052.09382.22102.23691.35493.22941.06973.27302.1649
C52.20023.15221.35492.23691.42632.20713.29151.07042.2395
C62.20023.15222.23691.35491.42633.29152.20712.23951.0704
H72.12052.48611.06973.22942.20713.29154.18062.68244.3056
H82.12052.48613.22941.06973.29152.20714.18064.30562.6824
H93.23514.15372.16493.27301.07042.23952.68244.30562.7132
H103.23514.15373.27302.16492.23951.07044.30562.68242.7132

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 108.240 N1 C3 H7 121.046
N1 C4 C6 108.240 N1 C4 H8 121.046
H2 N1 C3 125.293 H2 N1 C4 125.293
C3 N1 C4 109.414 C3 C5 C6 107.053
C3 C5 H9 125.997 C4 C6 C5 107.053
C4 C6 H10 125.997 C5 C3 H7 130.715
C5 C6 H10 126.950 C6 C4 H8 130.715
C6 C5 H9 126.950
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.347      
2 H 0.306      
3 C -0.072      
4 C -0.072      
5 C -0.203      
6 C -0.203      
7 H 0.154      
8 H 0.154      
9 H 0.141      
10 H 0.141      


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 1.852 1.852
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.261 0.000 0.000
y 0.000 -26.193 0.000
z 0.000 0.000 -23.381
Traceless
 xyz
x -8.474 0.000 0.000
y 0.000 2.128 0.000
z 0.000 0.000 6.346
Polar
3z2-r212.693
x2-y2-7.068
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.247 0.000 0.000
y 0.000 7.489 0.000
z 0.000 0.000 7.651


<r2> (average value of r2) Å2
<r2> 83.990
(<r2>)1/2 9.165