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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-248.180644
Energy at 298.15K-248.186749
Nuclear repulsion energy206.619542
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 B1B95/6-31G**
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 3233 3087 6.00      
2 A1 3208 3063 6.49      
3 A1 3182 3038 10.01      
4 A1 1661 1585 22.69      
5 A1 1528 1459 3.79      
6 A1 1253 1196 2.93      
7 A1 1102 1052 4.61      
8 A1 1056 1008 1.82      
9 A1 1012 966 8.59      
10 A1 602 575 4.12      
11 A2 1002 957 0.00      
12 A2 901 860 0.00      
13 A2 380 363 0.00      
14 B1 1016 970 0.00      
15 B1 961 917 0.00      
16 B1 764 729 7.81      
17 B1 719 686 47.49      
18 B1 415 396 3.39      
19 B2 3225 3079 24.38      
20 B2 3179 3036 31.98      
21 B2 1660 1585 10.38      
22 B2 1486 1419 25.88      
23 B2 1385 1322 0.00      
24 B2 1339 1278 0.03      
25 B2 1173 1120 1.62      
26 B2 1090 1041 0.10      
27 B2 664 634 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 19596.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 18710.5 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 B1B95/6-31G**
ABC
0.20302 0.19498 0.09946

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.416
C2 0.000 0.000 -1.381
C3 0.000 1.136 0.720
C4 0.000 -1.136 0.720
C5 0.000 1.194 -0.671
C6 0.000 -1.194 -0.671
H7 0.000 0.000 -2.466
H8 0.000 2.054 1.304
H9 0.000 -2.054 1.304
H10 0.000 2.151 -1.179
H11 0.000 -2.151 -1.179

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.79631.33251.33252.40372.40373.88132.05662.05663.37063.3706
C22.79632.38812.38811.38911.38911.08503.38023.38022.16092.1609
C31.33252.38812.27281.39162.71363.38211.08763.24312.15313.7967
C41.33252.38812.27282.71361.39163.38213.24311.08763.79672.1531
C52.40371.38911.39162.71362.38782.15582.15393.80081.08413.3838
C62.40371.38912.71361.39162.38782.15583.80082.15393.38381.0841
H73.88131.08503.38213.38212.15582.15584.29304.29302.50692.5069
H82.05663.38021.08763.24312.15393.80084.29304.10722.48514.8835
H92.05663.38023.24311.08763.80082.15394.29304.10724.88352.4851
H103.37062.16092.15313.79671.08413.38382.50692.48514.88354.3029
H113.37062.16093.79672.15313.38381.08412.50694.88352.48514.3029

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.849 N1 C3 H8 116.014
N1 C4 C6 123.849 N1 C4 H9 116.014
C2 C5 C3 118.373 C2 C5 H10 121.295
C2 C6 C4 118.373 C2 C6 H11 121.295
C3 N1 C4 117.040 C3 C5 H10 120.332
C4 C6 H11 120.332 C5 C2 C6 118.517
C5 C2 H7 120.742 C5 C3 H8 120.137
C6 C2 H7 120.742 C6 C4 H9 120.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.431      
2 C -0.081      
3 C 0.076      
4 C 0.076      
5 C -0.123      
6 C -0.123      
7 H 0.125      
8 H 0.122      
9 H 0.122      
10 H 0.119      
11 H 0.119      


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 -2.181 2.181
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.796 0.000 0.000
y 0.000 -28.788 0.000
z 0.000 0.000 -35.403
Traceless
 xyz
x -4.701 0.000 0.000
y 0.000 7.312 0.000
z 0.000 0.000 -2.611
Polar
3z2-r2-5.222
x2-y2-8.008
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.142 0.000 0.000
y 0.000 10.125 0.000
z 0.000 0.000 9.223


<r2> (average value of r2) Å2
<r2> 120.658
(<r2>)1/2 10.984