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All results from a given calculation for C5H5N (Pyridine)

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-247.983034
Energy at 298.15K-247.989015
Nuclear repulsion energy205.160663
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 3135 3103 8.18      
2 A1 3111 3079 3.72      
3 A1 3081 3049 8.72      
4 A1 1579 1563 20.67      
5 A1 1466 1451 3.04      
6 A1 1211 1199 2.09      
7 A1 1066 1055 3.18      
8 A1 1024 1013 4.00      
9 A1 979 969 7.85      
10 A1 588 582 4.35      
11 A2 961 951 0.00      
12 A2 874 865 0.00      
13 A2 361 357 0.00      
14 B1 977 966 0.00      
15 B1 928 919 0.00      
16 B1 748 740 3.01      
17 B1 701 693 43.41      
18 B1 400 396 2.87      
19 B2 3126 3094 25.62      
20 B2 3078 3047 30.77      
21 B2 1577 1561 7.62      
22 B2 1427 1412 23.26      
23 B2 1334 1320 0.01      
24 B2 1306 1293 0.29      
25 B2 1137 1126 1.25      
26 B2 1051 1040 0.10      
27 B2 643 637 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 18934.0 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 18738.9 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 PBEPBE/6-31G(2df,p)
ABC
0.20043 0.19206 0.09808

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 1.429
C2 0.000 0.000 -1.390
C3 0.000 1.144 0.723
C4 0.000 -1.144 0.723
C5 0.000 1.201 -0.675
C6 0.000 -1.201 -0.675
H7 0.000 0.000 -2.484
H8 0.000 2.069 1.312
H9 0.000 -2.069 1.312
H10 0.000 2.167 -1.188
H11 0.000 -2.167 -1.188

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.81971.34411.34412.42322.42323.91322.07232.07233.39753.3975
C22.81972.40322.40321.39781.39781.09353.40363.40362.17602.1760
C31.34412.40322.28751.39972.73023.40491.09683.26632.16753.8222
C41.34412.40322.28752.73021.39973.40493.26631.09683.82222.1675
C52.42321.39781.39972.73022.40222.17112.16873.82671.09303.4064
C62.42321.39782.73021.39972.40222.17113.82672.16873.40641.0930
H73.91321.09353.40493.40492.17112.17114.32324.32322.52462.5246
H82.07233.40361.09683.26632.16873.82674.32324.13802.50184.9182
H92.07233.40363.26631.09683.82672.16874.32324.13804.91822.5018
H103.39752.17602.16753.82221.09303.40642.52462.50184.91824.3330
H113.39752.17603.82222.16753.40641.09302.52464.91822.50184.3330

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 124.037 N1 C3 H8 115.837
N1 C4 C6 124.037 N1 C4 H9 115.837
C2 C5 C3 118.418 C2 C5 H10 121.275
C2 C6 C4 118.418 C2 C6 H11 121.275
C3 N1 C4 116.622 C3 C5 H10 120.307
C4 C6 H11 120.307 C5 C2 C6 118.467
C5 C2 H7 120.766 C5 C3 H8 120.126
C6 C2 H7 120.766 C6 C4 H9 120.126
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 -0.262      
2 C -0.084      
3 C 0.015      
4 C 0.015      
5 C -0.120      
6 C -0.120      
7 H 0.113      
8 H 0.114      
9 H 0.114      
10 H 0.107      
11 H 0.107      


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 -2.062 2.062
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.616 0.000 0.000
y 0.000 -29.216 0.000
z 0.000 0.000 -35.448
Traceless
 xyz
x -4.284 0.000 0.000
y 0.000 6.816 0.000
z 0.000 0.000 -2.532
Polar
3z2-r2-5.064
x2-y2-7.400
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.835 0.000 0.000
y 0.000 10.633 0.000
z 0.000 0.000 9.705


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000