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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: B3PW91/6-31G(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 B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-248.204821
Energy at 298.15K-248.210948
Nuclear repulsion energy206.558170
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(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 3214 3090 6.53      
2 A1 3188 3065 5.23      
3 A1 3161 3039 8.05      
4 A1 1638 1575 24.22      
5 A1 1516 1457 4.21      
6 A1 1247 1199 2.53      
7 A1 1098 1055 3.64      
8 A1 1052 1011 4.02      
9 A1 1011 972 8.54      
10 A1 606 583 4.67      
11 A2 1005 967 0.00      
12 A2 904 870 0.00      
13 A2 381 367 0.00      
14 B1 1018 979 0.00      
15 B1 967 930 0.02      
16 B1 774 744 5.12      
17 B1 724 696 46.96      
18 B1 417 401 3.23      
19 B2 3205 3082 23.44      
20 B2 3158 3036 29.78      
21 B2 1635 1571 9.49      
22 B2 1473 1416 27.17      
23 B2 1377 1324 0.00      
24 B2 1320 1269 0.00      
25 B2 1169 1124 1.74      
26 B2 1082 1041 0.09      
27 B2 663 637 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 19501.6 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 18748.8 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(2df,p)
ABC
0.20287 0.19493 0.09941

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

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 1.137 0.720
C4 0.000 -1.137 0.720
C5 0.000 1.194 -0.671
C6 0.000 -1.194 -0.671
H7 0.000 0.000 -2.467
H8 0.000 2.055 1.305
H9 0.000 -2.055 1.305
H10 0.000 2.153 -1.179
H11 0.000 -2.153 -1.179

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.79691.33341.33342.40412.40413.88282.05802.05803.37173.3717
C22.79692.38832.38831.38941.38941.08593.38163.38162.16222.1622
C31.33342.38832.27391.39122.71403.38301.08873.24512.15313.7981
C41.33342.38832.27392.71401.39123.38303.24511.08873.79812.1531
C52.40411.38941.39122.71402.38822.15692.15473.80241.08513.3852
C62.40411.38942.71401.39122.38822.15693.80242.15473.38521.0851
H73.88281.08593.38303.38302.15692.15694.29504.29502.50852.5085
H82.05803.38161.08873.24512.15473.80244.29504.10992.48564.8860
H92.05803.38163.24511.08873.80242.15474.29504.10994.88602.4856
H103.37172.16222.15313.79811.08513.38522.50852.48564.88604.3054
H113.37172.16223.79812.15313.38521.08512.50854.88602.48564.3054

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.851 N1 C3 H8 115.988
N1 C4 C6 123.851 N1 C4 H9 115.988
C2 C5 C3 118.390 C2 C5 H10 121.315
C2 C6 C4 118.390 C2 C6 H11 121.315
C3 N1 C4 117.009 C3 C5 H10 120.295
C4 C6 H11 120.295 C5 C2 C6 118.508
C5 C2 H7 120.746 C5 C3 H8 120.161
C6 C2 H7 120.746 C6 C4 H9 120.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.282      
2 C -0.100      
3 C 0.009      
4 C 0.009      
5 C -0.153      
6 C -0.153      
7 H 0.136      
8 H 0.135      
9 H 0.135      
10 H 0.132      
11 H 0.132      


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 -2.121 2.121
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.601 0.000 0.000
y 0.000 -28.789 0.000
z 0.000 0.000 -35.239
Traceless
 xyz
x -4.587 0.000 0.000
y 0.000 7.131 0.000
z 0.000 0.000 -2.544
Polar
3z2-r2-5.088
x2-y2-7.812
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.813 0.000 0.000
y 0.000 10.335 0.000
z 0.000 0.000 9.457


<r2> (average value of r2) Å2
<r2> 120.640
(<r2>)1/2 10.984