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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-248.239308
Energy at 298.15K-248.245458
Nuclear repulsion energy206.167619
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 mPW1PW91/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 3237 3102 5.27      
2 A1 3211 3078 4.73      
3 A1 3184 3051 7.26      
4 A1 1666 1596 24.41      
5 A1 1521 1458 3.62      
6 A1 1246 1195 2.90      
7 A1 1100 1055 5.77      
8 A1 1060 1015 2.66      
9 A1 1018 975 9.21      
10 A1 610 584 4.25      
11 A2 1012 969 0.00      
12 A2 903 866 0.00      
13 A2 384 368 0.00      
14 B1 1025 982 0.00      
15 B1 966 925 0.02      
16 B1 769 737 6.17      
17 B1 722 692 52.49      
18 B1 419 401 3.03      
19 B2 3228 3094 20.73      
20 B2 3182 3049 27.00      
21 B2 1660 1590 10.88      
22 B2 1479 1417 26.64      
23 B2 1373 1316 0.00      
24 B2 1342 1286 0.02      
25 B2 1165 1116 1.89      
26 B2 1088 1043 0.01      
27 B2 667 639 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 19616.9 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 18798.9 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 mPW1PW91/cc-pVDZ
ABC
0.20237 0.19405 0.09906

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.419
C2 0.000 0.000 -1.384
C3 0.000 1.137 0.721
C4 0.000 -1.137 0.721
C5 0.000 1.196 -0.672
C6 0.000 -1.196 -0.672
H7 0.000 0.000 -2.475
H8 0.000 2.060 1.309
H9 0.000 -2.060 1.309
H10 0.000 2.159 -1.183
H11 0.000 -2.159 -1.183

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.80301.33451.33452.40872.40873.89422.06262.06263.38113.3811
C22.80302.39242.39241.39171.39171.09113.39043.39042.16832.1683
C31.33452.39242.27451.39392.71713.39221.09403.25062.16063.8065
C41.33452.39242.27452.71711.39393.39223.25061.09403.80652.1606
C52.40871.39171.39392.71712.39152.16372.16123.81081.09043.3934
C62.40871.39172.71711.39392.39152.16373.81082.16123.39341.0904
H73.89421.09113.39223.39222.16372.16374.30844.30842.51612.5161
H82.06263.39041.09403.25062.16123.81084.30844.11932.49414.8997
H92.06263.39043.25061.09403.81082.16124.30844.11934.89972.4941
H103.38112.16832.16063.80651.09043.39342.51612.49414.89974.3179
H113.38112.16833.80652.16063.39341.09042.51614.89972.49414.3179

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.954 N1 C3 H8 115.922
N1 C4 C6 123.954 N1 C4 H9 115.922
C2 C5 C3 118.370 C2 C5 H10 121.273
C2 C6 C4 118.370 C2 C6 H11 121.273
C3 N1 C4 116.903 C3 C5 H10 120.357
C4 C6 H11 120.357 C5 C2 C6 118.450
C5 C2 H7 120.775 C5 C3 H8 120.124
C6 C2 H7 120.775 C6 C4 H9 120.124
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.227      
2 C 0.056      
3 C 0.110      
4 C 0.110      
5 C -0.071      
6 C -0.071      
7 H 0.016      
8 H 0.027      
9 H 0.027      
10 H 0.011      
11 H 0.011      


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 -2.076 2.076
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.242 0.000 0.000
y 0.000 -29.193 0.000
z 0.000 0.000 -35.488
Traceless
 xyz
x -4.902 0.000 0.000
y 0.000 7.172 0.000
z 0.000 0.000 -2.270
Polar
3z2-r2-4.541
x2-y2-8.049
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> 121.297
(<r2>)1/2 11.013