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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: B3LYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/3-21G*
 hartrees
Energy at 0K-209.012732
Energy at 298.15K-209.018938
HF Energy-209.012732
Nuclear repulsion energy159.980209
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 B3LYP/3-21G*
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 3606 3469 57.95      
2 A1 3302 3177 0.09      
3 A1 3277 3152 3.59      
4 A1 1486 1429 3.56      
5 A1 1405 1352 7.36      
6 A1 1167 1123 0.70      
7 A1 1103 1061 7.05      
8 A1 1035 995 30.11      
9 A1 930 894 0.43      
10 A2 915 880 0.00      
11 A2 723 695 0.00      
12 A2 644 619 0.00      
13 B1 873 840 2.37      
14 B1 751 722 129.33      
15 B1 648 624 0.44      
16 B1 590 568 133.66      
17 B2 3293 3167 4.01      
18 B2 3266 3142 2.36      
19 B2 1576 1516 10.13      
20 B2 1435 1381 8.82      
21 B2 1333 1283 0.00      
22 B2 1176 1131 0.94      
23 B2 1070 1030 27.21      
24 B2 915 880 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 18258.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 17564.6 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 B3LYP/3-21G*
ABC
0.30100 0.29799 0.14974

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.132
H2 0.000 0.000 2.143
C3 0.000 1.134 0.331
C4 0.000 -1.134 0.331
C5 0.000 0.716 -0.986
C6 0.000 -0.716 -0.986
H7 0.000 2.125 0.752
H8 0.000 -2.125 0.752
H9 0.000 1.356 -1.853
H10 0.000 -1.356 -1.853

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01101.38881.38882.23552.23552.15882.15883.27833.2783
H21.01102.13802.13803.20963.20962.53992.53994.21954.2195
C31.38882.13802.26871.38112.27111.07653.28642.19463.3121
C41.38882.13802.26872.27111.38113.28641.07653.31212.1946
C52.23553.20961.38112.27111.43262.23683.33051.07762.2465
C62.23553.20962.27111.38111.43263.33052.23682.24651.0776
H72.15882.53991.07653.28642.23683.33054.25012.71554.3476
H82.15882.53993.28641.07653.33052.23684.25014.34762.7155
H93.27834.21952.19463.31211.07762.24652.71554.34762.7124
H103.27834.21953.31212.19462.24651.07764.34762.71552.7124

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.621 N1 C3 H7 121.737
N1 C4 C6 107.621 N1 C4 H8 121.737
H2 N1 C3 125.238 H2 N1 C4 125.238
C3 N1 C4 109.525 C3 C5 C6 107.617
C3 C5 H9 125.955 C4 C6 C5 107.617
C4 C6 H10 125.955 C5 C3 H7 130.642
C5 C6 H10 126.428 C6 C4 H8 130.642
C6 C5 H9 126.428
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.691      
2 H 0.320      
3 C 0.066      
4 C 0.066      
5 C -0.247      
6 C -0.247      
7 H 0.196      
8 H 0.196      
9 H 0.169      
10 H 0.169      


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 1.986 1.986
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.741 0.000 0.000
y 0.000 -26.153 0.000
z 0.000 0.000 -23.075
Traceless
 xyz
x -9.126 0.000 0.000
y 0.000 2.254 0.000
z 0.000 0.000 6.872
Polar
3z2-r213.744
x2-y2-7.587
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.863 0.000 0.000
y 0.000 7.313 0.000
z 0.000 0.000 7.228


<r2> (average value of r2) Å2
<r2> 86.109
(<r2>)1/2 9.280