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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-246.749673
Energy at 298.15K-246.756123
Nuclear repulsion energy208.031415
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 HF/6-311G**
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 3359 3051 5.34      
2 A1 3331 3026 18.81      
3 A1 3318 3015 3.64      
4 A1 1785 1621 42.01      
5 A1 1642 1492 8.08      
6 A1 1334 1212 6.25      
7 A1 1172 1065 3.79      
8 A1 1117 1015 8.96      
9 A1 1087 987 4.25      
10 A1 659 598 5.15      
11 A2 1125 1023 0.00      
12 A2 983 893 0.00      
13 A2 435 396 0.00      
14 B1 1127 1024 0.26      
15 B1 1072 973 0.03      
16 B1 836 760 21.17      
17 B1 776 705 67.31      
18 B1 462 419 4.04      
19 B2 3350 3044 37.76      
20 B2 3318 3015 25.96      
21 B2 1772 1610 20.06      
22 B2 1590 1445 40.27      
23 B2 1494 1357 0.88      
24 B2 1298 1179 0.26      
25 B2 1165 1059 5.73      
26 B2 1146 1042 4.67      
27 B2 718 652 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 20736.0 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 18838.6 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 HF/6-311G**
ABC
0.20523 0.19802 0.10078

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.400
C2 0.000 0.000 -1.372
C3 0.000 1.130 0.717
C4 0.000 -1.130 0.717
C5 0.000 1.189 -0.666
C6 0.000 -1.189 -0.666
H7 0.000 0.000 -2.447
H8 0.000 2.036 1.299
H9 0.000 -2.036 1.299
H10 0.000 2.139 -1.168
H11 0.000 -2.139 -1.168

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.77131.31971.31972.38342.38343.84692.03812.03813.34203.3420
C22.77132.37492.37491.38291.38291.07563.35803.35802.14862.1486
C31.31972.37492.25921.38462.70013.36021.07663.21822.13873.7734
C41.31972.37492.25922.70011.38463.36023.21821.07663.77342.1387
C52.38341.38291.38462.70012.37842.14192.13953.77631.07443.3658
C62.38341.38292.70011.38462.37842.14193.77632.13953.36581.0744
H73.84691.07563.36023.36022.14192.14194.26364.26362.49222.4922
H82.03813.35801.07663.21822.13953.77634.26364.07122.46944.8491
H92.03813.35803.21821.07663.77632.13954.26364.07124.84912.4694
H103.34202.14862.13873.77341.07443.36582.49222.46944.84914.2779
H113.34202.14863.77342.13873.36581.07442.49224.84912.46944.2779

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.599 N1 C3 H8 116.168
N1 C4 C6 123.599 N1 C4 H9 116.168
C2 C5 C3 118.220 C2 C5 H10 121.439
C2 C6 C4 118.220 C2 C6 H11 121.439
C3 N1 C4 117.737 C3 C5 H10 120.341
C4 C6 H11 120.341 C5 C2 C6 118.625
C5 C2 H7 120.688 C5 C3 H8 120.234
C6 C2 H7 120.688 C6 C4 H9 120.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.396      
2 C 0.031      
3 C 0.146      
4 C 0.146      
5 C -0.236      
6 C -0.236      
7 H 0.111      
8 H 0.112      
9 H 0.112      
10 H 0.105      
11 H 0.105      


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 -2.263 2.263
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.316 0.000 0.000
y 0.000 -29.186 0.000
z 0.000 0.000 -36.256
Traceless
 xyz
x -5.595 0.000 0.000
y 0.000 8.101 0.000
z 0.000 0.000 -2.505
Polar
3z2-r2-5.011
x2-y2-9.130
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.966 0.000 0.000
y 0.000 9.946 0.000
z 0.000 0.000 9.155


<r2> (average value of r2) Å2
<r2> 119.914
(<r2>)1/2 10.951