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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-248.188416
Energy at 298.15K-248.194513
Nuclear repulsion energy206.145685
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3227 3087 7.21      
2 A1 3203 3064 7.84      
3 A1 3181 3043 10.67      
4 A1 1656 1584 23.21      
5 A1 1532 1466 3.78      
6 A1 1256 1202 2.99      
7 A1 1104 1057 4.65      
8 A1 1054 1009 2.83      
9 A1 1014 970 8.25      
10 A1 610 583 4.06      
11 A2 996 953 0.00      
12 A2 898 859 0.00      
13 A2 382 365 0.00      
14 B1 1011 967 0.00      
15 B1 958 916 0.01      
16 B1 763 730 7.86      
17 B1 717 686 53.17      
18 B1 418 400 3.35      
19 B2 3219 3080 30.02      
20 B2 3179 3041 32.55      
21 B2 1652 1580 9.44      
22 B2 1489 1425 26.92      
23 B2 1394 1333 0.00      
24 B2 1334 1277 0.06      
25 B2 1181 1130 1.68      
26 B2 1091 1044 0.07      
27 B2 668 639 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 19593.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18744.8 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 B3PW91/6-31G*
ABC
0.20203 0.19414 0.09900

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.419
C2 0.000 0.000 -1.384
C3 0.000 1.139 0.721
C4 0.000 -1.139 0.721
C5 0.000 1.197 -0.672
C6 0.000 -1.197 -0.672
H7 0.000 0.000 -2.471
H8 0.000 2.057 1.308
H9 0.000 -2.057 1.308
H10 0.000 2.156 -1.182
H11 0.000 -2.156 -1.182

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.80241.33611.33612.40922.40923.88962.06012.06013.37823.3782
C22.80242.39332.39331.39241.39241.08723.38803.38802.16592.1659
C31.33612.39332.27881.39432.72013.38921.08963.25012.15743.8056
C41.33612.39332.27882.72011.39433.38923.25011.08963.80562.1574
C52.40921.39241.39432.72012.39382.16062.15913.80931.08643.3918
C62.40921.39242.72011.39432.39382.16063.80932.15913.39181.0864
H73.88961.08723.38923.38922.16062.16064.30274.30272.51242.5124
H82.06013.38801.08963.25012.15913.80934.30274.11432.49184.8942
H92.06013.38803.25011.08963.80932.15914.30274.11434.89422.4918
H103.37822.16592.15743.80561.08643.39182.51242.49184.89424.3128
H113.37822.16593.80562.15743.39181.08642.51244.89422.49184.3128

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.845 N1 C3 H8 115.906
N1 C4 C6 123.845 N1 C4 H9 115.906
C2 C5 C3 118.371 C2 C5 H10 121.297
C2 C6 C4 118.371 C2 C6 H11 121.297
C3 N1 C4 117.035 C3 C5 H10 120.332
C4 C6 H11 120.332 C5 C2 C6 118.533
C5 C2 H7 120.733 C5 C3 H8 120.250
C6 C2 H7 120.733 C6 C4 H9 120.250
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.419     -0.628
2 C -0.132     0.237
3 C 0.021     0.452
4 C 0.021     0.452
5 C -0.178     -0.495
6 C -0.178     -0.495
7 H 0.177     0.074
8 H 0.172     0.020
9 H 0.172     0.020
10 H 0.172     0.181
11 H 0.172     0.181


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 -2.217 2.217
CHELPG        
AIM        
ESP 0.000 0.000 -2.213 2.213


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.946 0.000 0.000
y 0.000 -28.629 0.000
z 0.000 0.000 -35.360
Traceless
 xyz
x -4.951 0.000 0.000
y 0.000 7.524 0.000
z 0.000 0.000 -2.573
Polar
3z2-r2-5.146
x2-y2-8.316
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 121.103
(<r2>)1/2 11.005