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All results from a given calculation for C4H5N (Pyrrole)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-208.746361
Energy at 298.15K 
HF Energy-208.746361
Nuclear repulsion energy159.068191
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 PBEPBEultrafine/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 3525 3493 51.49      
2 A1 3236 3206 0.06      
3 A1 3210 3181 2.87      
4 A1 1441 1428 2.57      
5 A1 1370 1358 6.33      
6 A1 1137 1126 1.12      
7 A1 1086 1076 4.16      
8 A1 1012 1003 28.24      
9 A1 901 893 0.20      
10 A2 860 852 0.00      
11 A2 674 668 0.00      
12 A2 622 616 0.00      
13 B1 816 809 3.63      
14 B1 712 705 149.33      
15 B1 631 626 0.30      
16 B1 559 554 114.60      
17 B2 3225 3196 3.02      
18 B2 3200 3170 1.83      
19 B2 1526 1512 9.70      
20 B2 1396 1384 7.60      
21 B2 1286 1275 0.12      
22 B2 1148 1137 1.95      
23 B2 1042 1033 28.98      
24 B2 883 875 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 17749.2 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 17587.7 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 PBEPBEultrafine/3-21G
ABC
0.29788 0.29446 0.14808

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.136
H2 0.000 0.000 2.156
C3 0.000 1.141 0.334
C4 0.000 -1.141 0.334
C5 0.000 0.719 -0.992
C6 0.000 -0.719 -0.992
H7 0.000 2.138 0.760
H8 0.000 -2.138 0.760
H9 0.000 1.364 -1.865
H10 0.000 -1.364 -1.865

Atom - Atom Distances (Å)
  N1 H2 C3 C4 C5 C6 H7 H8 H9 H10
N11.01931.39461.39462.24662.24662.17102.17103.29713.2971
H21.01932.14932.14933.22883.22882.55312.55314.24614.2461
C31.39462.14932.28141.39182.28391.08483.30652.21083.3334
C41.39462.14932.28142.28391.39183.30651.08483.33342.2108
C52.24663.22881.39182.28391.43742.25543.35171.08582.2585
C62.24663.22882.28391.39181.43743.35172.25542.25851.0858
H72.17102.55311.08483.30652.25543.35174.27642.73754.3774
H82.17102.55313.30651.08483.35172.25544.27644.37742.7375
H93.29714.24612.21083.33341.08582.25852.73754.37742.7283
H103.29714.24613.33342.21082.25851.08584.37742.73752.7283

picture of Pyrrole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 107.468 N1 C3 H7 121.737
N1 C4 C6 107.468 N1 C4 H8 121.737
H2 N1 C3 125.119 H2 N1 C4 125.119
C3 N1 C4 109.763 C3 C5 C6 107.650
C3 C5 H9 125.877 C4 C6 C5 107.650
C4 C6 H10 125.877 C5 C3 H7 130.794
C5 C6 H10 126.472 C6 C4 H8 130.794
C6 C5 H9 126.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.664      
2 H 0.324      
3 C 0.039      
4 C 0.039      
5 C -0.254      
6 C -0.254      
7 H 0.206      
8 H 0.206      
9 H 0.179      
10 H 0.179      


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 2.028 2.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.924 0.000 0.000
y 0.000 -26.048 0.000
z 0.000 0.000 -22.811
Traceless
 xyz
x -9.494 0.000 0.000
y 0.000 2.320 0.000
z 0.000 0.000 7.174
Polar
3z2-r214.349
x2-y2-7.876
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.919 0.000 0.000
y 0.000 7.524 0.000
z 0.000 0.000 7.347


<r2> (average value of r2) Å2
<r2> 86.867
(<r2>)1/2 9.320