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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-247.975116
Energy at 298.15K-247.981078
Nuclear repulsion energy204.777442
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 PBEPBE/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 3143 3100 8.16      
2 A1 3120 3077 4.59      
3 A1 3092 3049 10.92      
4 A1 1592 1570 19.44      
5 A1 1475 1454 2.72      
6 A1 1214 1198 2.52      
7 A1 1069 1054 3.98      
8 A1 1024 1010 2.85      
9 A1 979 966 7.64      
10 A1 591 583 3.77      
11 A2 954 941 0.00      
12 A2 866 855 0.00      
13 A2 360 355 0.00      
14 B1 970 957 0.03      
15 B1 920 907 0.00      
16 B1 737 727 4.58      
17 B1 694 685 46.80      
18 B1 401 395 3.00      
19 B2 3135 3092 27.48      
20 B2 3089 3047 33.05      
21 B2 1590 1568 7.88      
22 B2 1436 1416 22.29      
23 B2 1342 1324 0.08      
24 B2 1316 1298 0.59      
25 B2 1143 1127 1.22      
26 B2 1055 1041 0.07      
27 B2 648 639 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 18976.8 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 18716.8 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 PBEPBE/6-31G**
ABC
0.19961 0.19137 0.09770

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.432
C2 0.000 0.000 -1.393
C3 0.000 1.146 0.725
C4 0.000 -1.146 0.725
C5 0.000 1.204 -0.677
C6 0.000 -1.204 -0.677
H7 0.000 0.000 -2.487
H8 0.000 2.072 1.314
H9 0.000 -2.072 1.314
H10 0.000 2.170 -1.190
H11 0.000 -2.170 -1.190

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.82461.34691.34692.42802.42803.91902.07542.07543.40333.4033
C22.82462.40782.40781.40061.40061.09443.40893.40892.17902.1790
C31.34692.40782.29251.40262.73623.41021.09753.27192.17123.8290
C41.34692.40782.29252.73621.40263.41023.27191.09753.82902.1712
C52.42801.40061.40262.73622.40752.17402.17203.83331.09383.4121
C62.42801.40062.73621.40262.40752.17403.83332.17203.41211.0938
H73.91901.09443.41023.41022.17402.17404.32934.32932.52772.5277
H82.07543.40891.09753.27192.17203.83334.32934.14412.50624.9258
H92.07543.40893.27191.09753.83332.17204.32934.14414.92582.5062
H103.40332.17902.17123.82901.09383.41212.52772.50624.92584.3391
H113.40332.17903.82902.17123.41211.09382.52774.92582.50624.3391

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 124.020 N1 C3 H8 115.843
N1 C4 C6 124.020 N1 C4 H9 115.843
C2 C5 C3 118.397 C2 C5 H10 121.260
C2 C6 C4 118.397 C2 C6 H11 121.260
C3 N1 C4 116.655 C3 C5 H10 120.343
C4 C6 H11 120.343 C5 C2 C6 118.510
C5 C2 H7 120.745 C5 C3 H8 120.137
C6 C2 H7 120.745 C6 C4 H9 120.137
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.402      
2 C -0.073      
3 C 0.068      
4 C 0.068      
5 C -0.101      
6 C -0.101      
7 H 0.111      
8 H 0.111      
9 H 0.111      
10 H 0.104      
11 H 0.104      


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 -2.137 2.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.871 0.000 0.000
y 0.000 -29.075 0.000
z 0.000 0.000 -35.549
Traceless
 xyz
x -4.559 0.000 0.000
y 0.000 7.134 0.000
z 0.000 0.000 -2.575
Polar
3z2-r2-5.151
x2-y2-7.795
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.181 0.000 0.000
y 0.000 10.479 0.000
z 0.000 0.000 9.526


<r2> (average value of r2) Å2
<r2> 122.548
(<r2>)1/2 11.070