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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-246.725023
Energy at 298.15K-246.731453
Nuclear repulsion energy207.390024
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/aug-cc-pVDZ
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 3369 3068 4.64      
2 A1 3342 3043 14.40      
3 A1 3329 3032 1.96      
4 A1 1782 1623 41.33      
5 A1 1633 1487 6.04      
6 A1 1326 1208 6.15      
7 A1 1167 1063 3.25      
8 A1 1116 1016 7.59      
9 A1 1083 987 4.57      
10 A1 655 597 5.18      
11 A2 1115 1016 0.00      
12 A2 968 882 0.00      
13 A2 430 392 0.00      
14 B1 1106 1007 0.17      
15 B1 1061 966 0.02      
16 B1 827 753 24.01      
17 B1 767 698 69.49      
18 B1 458 417 4.08      
19 B2 3361 3061 31.17      
20 B2 3330 3033 21.87      
21 B2 1770 1612 23.01      
22 B2 1582 1440 36.01      
23 B2 1483 1350 0.84      
24 B2 1295 1180 0.03      
25 B2 1175 1070 12.12      
26 B2 1148 1045 2.27      
27 B2 712 648 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 20695.5 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 18845.3 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/aug-cc-pVDZ
ABC
0.20402 0.19682 0.10018

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.404
C2 0.000 0.000 -1.376
C3 0.000 1.133 0.720
C4 0.000 -1.133 0.720
C5 0.000 1.192 -0.668
C6 0.000 -1.192 -0.668
H7 0.000 0.000 -2.457
H8 0.000 2.044 1.302
H9 0.000 -2.044 1.302
H10 0.000 2.147 -1.172
H11 0.000 -2.147 -1.172

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.77961.32341.32342.39042.39043.86062.04642.04643.35343.3534
C22.77962.38182.38181.38671.38671.08103.36893.36892.15672.1567
C31.32342.38182.26541.38872.70753.37221.08163.22962.14643.7861
C41.32342.38182.26542.70751.38873.37223.22961.08163.78612.1464
C52.39041.38671.38872.70752.38482.14992.14633.78881.07973.3773
C62.39041.38672.70751.38872.38482.14993.78882.14633.37731.0797
H73.86061.08103.37223.37222.14992.14994.27884.27882.50212.5021
H82.04643.36891.08163.22962.14633.78884.27884.08772.47664.8669
H92.04643.36893.22961.08163.78882.14634.27884.08774.86692.4766
H103.35342.15672.14643.78611.07973.37732.50212.47664.86694.2942
H113.35342.15673.78612.14643.37731.07972.50214.86692.47664.2942

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.604 N1 C3 H8 116.255
N1 C4 C6 123.604 N1 C4 H9 116.255
C2 C5 C3 118.233 C2 C5 H10 121.464
C2 C6 C4 118.233 C2 C6 H11 121.464
C3 N1 C4 117.720 C3 C5 H10 120.303
C4 C6 H11 120.303 C5 C2 C6 118.606
C5 C2 H7 120.697 C5 C3 H8 120.141
C6 C2 H7 120.697 C6 C4 H9 120.141
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.553      
2 C -0.025      
3 C 0.365      
4 C 0.365      
5 C 0.854      
6 C 0.854      
7 H -0.388      
8 H -0.326      
9 H -0.326      
10 H -0.409      
11 H -0.409      


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 -2.291 2.291
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.945 0.000 0.000
y 0.000 -29.427 0.000
z 0.000 0.000 -36.592
Traceless
 xyz
x -5.936 0.000 0.000
y 0.000 8.341 0.000
z 0.000 0.000 -2.406
Polar
3z2-r2-4.811
x2-y2-9.518
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> 120.777
(<r2>)1/2 10.990