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All results from a given calculation for C5H5N (Pyridine)

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-41.020343
Energy at 298.15K-41.026464
Nuclear repulsion energy102.789689
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 B1B95/CEP-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 3246 3108 7.26      
2 A1 3216 3079 20.86      
3 A1 3202 3066 0.46      
4 A1 1634 1564 18.53      
5 A1 1493 1429 8.09      
6 A1 1243 1190 2.57      
7 A1 1087 1041 9.08      
8 A1 1036 992 2.32      
9 A1 991 949 4.18      
10 A1 594 569 2.12      
11 A2 1044 1000 0.00      
12 A2 937 898 0.00      
13 A2 381 365 0.00      
14 B1 1073 1027 0.04      
15 B1 997 954 0.22      
16 B1 778 745 62.52      
17 B1 742 711 55.89      
18 B1 415 397 4.89      
19 B2 3234 3097 51.66      
20 B2 3202 3066 29.23      
21 B2 1633 1564 6.20      
22 B2 1466 1403 33.47      
23 B2 1377 1318 0.02      
24 B2 1335 1278 0.10      
25 B2 1174 1124 1.10      
26 B2 1080 1034 0.36      
27 B2 647 619 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 19626.6 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 18792.4 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 B1B95/CEP-31G
ABC
0.19493 0.18749 0.09557

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.443
C2 0.000 0.000 -1.409
C3 0.000 1.162 0.735
C4 0.000 -1.162 0.735
C5 0.000 1.220 -0.686
C6 0.000 -1.220 -0.686
H7 0.000 0.000 -2.502
H8 0.000 2.081 1.328
H9 0.000 -2.081 1.328
H10 0.000 2.184 -1.195
H11 0.000 -2.184 -1.195

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.85201.36051.36052.45312.45313.94412.08462.08463.42473.4247
C22.85202.43932.43931.41861.41861.09213.43893.43892.19472.1947
C31.36052.43932.32421.42202.77373.43911.09383.29732.18433.8632
C41.36052.43932.32422.77371.42203.43913.29731.09383.86322.1843
C52.45311.41861.42202.77372.44002.18772.19023.86701.09063.4421
C62.45311.41862.77371.42202.44002.18773.86702.19023.44211.0906
H73.94411.09213.43913.43912.18772.18774.35874.35872.54512.5451
H82.08463.43891.09383.29732.19023.86704.35874.16282.52534.9560
H92.08463.43893.29731.09383.86702.19024.35874.16284.95602.5253
H103.42472.19472.18433.86321.09063.44212.54512.52534.95604.3684
H113.42472.19473.86322.18433.44211.09062.54514.95602.52534.3684

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 123.658 N1 C3 H8 115.858
N1 C4 C6 123.658 N1 C4 H9 115.858
C2 C5 C3 118.350 C2 C5 H10 121.464
C2 C6 C4 118.350 C2 C6 H11 121.464
C3 N1 C4 117.347 C3 C5 H10 120.186
C4 C6 H11 120.186 C5 C2 C6 118.637
C5 C2 H7 120.681 C5 C3 H8 120.483
C6 C2 H7 120.681 C6 C4 H9 120.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.333      
2 C -0.506      
3 C -0.618      
4 C -0.618      
5 C 0.037      
6 C 0.037      
7 H 0.280      
8 H 0.234      
9 H 0.234      
10 H 0.294      
11 H 0.294      


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 -2.764 2.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.680 0.000 0.000
y 0.000 -28.056 0.000
z 0.000 0.000 -36.931
Traceless
 xyz
x -5.186 0.000 0.000
y 0.000 9.249 0.000
z 0.000 0.000 -4.063
Polar
3z2-r2-8.126
x2-y2-9.623
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.645 0.000 0.000
y 0.000 9.880 0.000
z 0.000 0.000 9.317


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000