return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H5N (Pyridine)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-246.637689
Energy at 298.15K-246.643945
HF Energy-246.637689
Nuclear repulsion energy205.790199
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 HSEh1PBE/3-21G
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 3250 3130 1.59      
2 A1 3222 3103 6.73      
3 A1 3207 3089 8.91      
4 A1 1623 1564 17.83      
5 A1 1531 1475 11.19      
6 A1 1271 1225 1.36      
7 A1 1124 1083 0.15      
8 A1 1073 1034 9.50      
9 A1 1011 974 4.24      
10 A1 639 616 4.30      
11 A2 1056 1017 0.00      
12 A2 935 901 0.00      
13 A2 396 381 0.00      
14 B1 1075 1036 0.00      
15 B1 999 962 0.12      
16 B1 800 770 4.39      
17 B1 747 720 91.67      
18 B1 436 420 3.76      
19 B2 3240 3121 18.01      
20 B2 3202 3085 19.23      
21 B2 1621 1562 4.06      
22 B2 1495 1440 32.55      
23 B2 1425 1373 0.65      
24 B2 1279 1232 0.85      
25 B2 1223 1178 1.20      
26 B2 1092 1052 0.18      
27 B2 695 670 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 19833.6 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 19105.7 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 HSEh1PBE/3-21G
ABC
0.19999 0.19467 0.09865

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 1.411
C2 0.000 0.000 -1.382
C3 0.000 1.150 0.725
C4 0.000 -1.150 0.725
C5 0.000 1.200 -0.671
C6 0.000 -1.200 -0.671
H7 0.000 0.000 -2.462
H8 0.000 2.064 1.300
H9 0.000 -2.064 1.300
H10 0.000 2.149 -1.187
H11 0.000 -2.149 -1.187

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11
N12.79301.33891.33892.40292.40293.87302.06722.06723.37213.3721
C22.79302.40032.40031.39451.39451.08003.38453.38452.15792.1579
C31.33892.40032.29961.39702.73293.38801.08033.26512.15793.8132
C41.33892.40032.29962.73291.39703.38803.26511.08033.81322.1579
C52.40291.39451.39702.73292.39932.15562.15253.81301.08083.3883
C62.40291.39452.73291.39702.39932.15563.81302.15253.38831.0808
H73.87301.08003.38803.38802.15562.15564.29124.29122.49852.4985
H82.06723.38451.08033.26512.15253.81304.29124.12852.48924.8929
H92.06723.38453.26511.08033.81302.15254.29124.12854.89292.4892
H103.37212.15792.15793.81321.08083.38832.49852.48924.89294.2982
H113.37212.15793.81322.15793.38831.08082.49854.89292.48924.2982

picture of Pyridine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C3 C5 122.867 N1 C3 H8 117.011
N1 C4 C6 122.867 N1 C4 H9 117.011
C2 C5 C3 118.607 C2 C5 H10 120.800
C2 C6 C4 118.607 C2 C6 H11 120.800
C3 N1 C4 118.357 C3 C5 H10 120.593
C4 C6 H11 120.593 C5 C2 C6 118.695
C5 C2 H7 120.652 C5 C3 H8 120.122
C6 C2 H7 120.652 C6 C4 H9 120.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability