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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-246.740819
Energy at 298.15K-246.747256
Nuclear repulsion energy208.033871
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 3375 3053 7.47      
2 A1 3349 3029 27.42      
3 A1 3337 3018 2.99      
4 A1 1790 1618 43.04      
5 A1 1651 1493 7.40      
6 A1 1339 1211 6.06      
7 A1 1175 1062 3.57      
8 A1 1120 1013 9.26      
9 A1 1088 984 4.13      
10 A1 660 597 5.12      
11 A2 1121 1014 0.00      
12 A2 981 887 0.00      
13 A2 436 394 0.00      
14 B1 1122 1015 0.27      
15 B1 1069 967 0.04      
16 B1 836 756 21.23      
17 B1 775 701 71.09      
18 B1 463 418 3.88      
19 B2 3366 3045 54.64      
20 B2 3337 3018 27.53      
21 B2 1777 1607 19.87      
22 B2 1597 1445 40.34      
23 B2 1502 1359 1.13      
24 B2 1305 1180 0.37      
25 B2 1167 1055 5.17      
26 B2 1148 1038 5.04      
27 B2 719 650 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 20801.7 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 18813.1 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
0.20528 0.19797 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 1.129 0.717
C4 0.000 -1.129 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 2.034 1.300
H9 0.000 -2.034 1.300
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
N12.77161.31951.31952.38372.38373.84712.03662.03663.34223.3422
C22.77162.37492.37491.38311.38311.07553.35823.35822.14872.1487
C31.31952.37492.25861.38472.70003.36021.07633.21672.13893.7733
C41.31952.37492.25862.70001.38473.36023.21671.07633.77332.1389
C52.38371.38311.38472.70002.37872.14192.13993.77581.07433.3661
C62.38371.38312.70001.38472.37872.14193.77582.13993.36611.0743
H73.84711.07553.36023.36022.14192.14194.26394.26392.49232.4923
H82.03663.35821.07633.21672.13993.77584.26394.06842.47054.8486
H92.03663.35823.21671.07633.77582.13994.26394.06844.84862.4705
H103.34222.14872.13893.77331.07433.36612.49232.47054.84864.2781
H113.34222.14873.77332.13893.36611.07432.49234.84862.47054.2781

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.630 N1 C3 H8 116.078
N1 C4 C6 123.630 N1 C4 H9 116.078
C2 C5 C3 118.201 C2 C5 H10 121.442
C2 C6 C4 118.201 C2 C6 H11 121.442
C3 N1 C4 117.714 C3 C5 H10 120.357
C4 C6 H11 120.357 C5 C2 C6 118.624
C5 C2 H7 120.688 C5 C3 H8 120.292
C6 C2 H7 120.688 C6 C4 H9 120.292
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.398 -0.685   -0.713
2 C -0.084 0.253   0.313
3 C 0.030 0.493   0.539
4 C 0.030 0.493   0.539
5 C -0.351 -0.482   -0.615
6 C -0.351 -0.482   -0.615
7 H 0.230 0.065   0.081
8 H 0.226 0.010   0.022
9 H 0.226 0.010   0.022
10 H 0.221 0.163   0.214
11 H 0.221 0.163   0.214


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 -2.273 2.273
CHELPG        
AIM        
ESP 0.000 0.000 -2.287 2.287


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.510 0.000 0.000
y 0.000 -29.125 0.000
z 0.000 0.000 -36.178
Traceless
 xyz
x -5.858 0.000 0.000
y 0.000 8.219 0.000
z 0.000 0.000 -2.361
Polar
3z2-r2-4.722
x2-y2-9.385
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.847 0.000 0.000
y 0.000 9.886 0.000
z 0.000 0.000 9.103


<r2> (average value of r2) Å2
<r2> 119.924
(<r2>)1/2 10.951