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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: HF/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-208.885453
Energy at 298.15K-208.891837
HF Energy-208.885453
Nuclear repulsion energy162.620193
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/cc-pVTZ
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 3915 3563 89.57      
2 A1 3406 3100 0.34      
3 A1 3383 3079 5.96      
4 A1 1630 1484 12.72      
5 A1 1526 1389 6.73      
6 A1 1253 1140 2.30      
7 A1 1147 1044 26.96      
8 A1 1098 999 26.39      
9 A1 965 879 0.77      
10 A2 1002 912 0.00      
11 A2 815 741 0.00      
12 A2 676 615 0.00      
13 B1 978 890 0.00      
14 B1 830 755 157.59      
15 B1 684 622 0.78      
16 B1 502 457 94.07      
17 B2 3399 3094 8.87      
18 B2 3371 3068 3.92      
19 B2 1719 1565 6.70      
20 B2 1573 1431 7.25      
21 B2 1429 1300 0.69      
22 B2 1237 1126 0.91      
23 B2 1153 1049 19.70      
24 B2 944 859 2.79      

Unscaled Zero Point Vibrational Energy (zpe) 19316.5 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 17579.9 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/cc-pVTZ
ABC
0.31081 0.30819 0.15475

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVTZ

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 2.099
C3 0.000 1.110 0.326
C4 0.000 -1.110 0.326
C5 0.000 0.712 -0.970
C6 0.000 -0.712 -0.970
H7 0.000 2.090 0.751
H8 0.000 -2.090 0.751
H9 0.000 1.356 -1.824
H10 0.000 -1.356 -1.824

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N10.98841.35921.35922.19952.19952.12062.12063.23273.2327
H20.98842.09192.09193.15093.15092.48702.48704.15084.1508
C31.35922.09192.21931.35562.23601.06843.22762.16393.2710
C41.35922.09192.21932.23601.35563.22761.06843.27102.1639
C52.19953.15091.35562.23601.42472.20453.28861.06902.2372
C62.19953.15092.23601.35561.42473.28862.20452.23721.0690
H72.12062.48701.06843.22762.20453.28864.17972.67774.3013
H82.12062.48703.22761.06843.28862.20454.17974.30132.6777
H93.23274.15082.16393.27101.06902.23722.67774.30132.7110
H103.23274.15083.27102.16392.23721.06904.30132.67772.7110

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 108.227 N1 C3 H7 121.286
N1 C4 C6 108.227 N1 C4 H8 121.286
H2 N1 C3 125.270 H2 N1 C4 125.270
C3 N1 C4 109.460 C3 C5 C6 107.043
C3 C5 H9 125.968 C4 C6 C5 107.043
C4 C6 H10 125.968 C5 C3 H7 130.487
C5 C6 H10 126.989 C6 C4 H8 130.487
C6 C5 H9 126.989
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.063      
2 H 0.186      
3 C -0.177      
4 C -0.177      
5 C -0.214      
6 C -0.214      
7 H 0.164      
8 H 0.164      
9 H 0.166      
10 H 0.166      


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 1.908 1.908
CHELPG        
AIM 0.000 0.000 2.071 2.071
ESP 0.000 0.000 1.892 1.892


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.192 0.000 0.000
y 0.000 -26.716 0.000
z 0.000 0.000 -23.730
Traceless
 xyz
x -8.969 0.000 0.000
y 0.000 2.245 0.000
z 0.000 0.000 6.724
Polar
3z2-r213.448
x2-y2-7.476
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.335 0.000 0.000
y 0.000 8.011 0.000
z 0.000 0.000 8.092


<r2> (average value of r2) Å2
<r2> 84.291
(<r2>)1/2 9.181