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 C5H5NO (3(6H)-Pyridinone)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-322.667574
Energy at 298.15K-322.673521
HF Energy-321.624080
Nuclear repulsion energy271.362280
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 MP2/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3244 3075 3.47      
2 A 3205 3038 6.46      
3 A 3179 3013 15.79      
4 A 3103 2942 2.43      
5 A 3072 2912 4.56      
6 A 1722 1632 131.14      
7 A 1670 1583 8.88      
8 A 1646 1560 18.19      
9 A 1446 1370 15.24      
10 A 1433 1358 11.60      
11 A 1399 1326 3.12      
12 A 1367 1296 3.79      
13 A 1302 1234 12.98      
14 A 1240 1176 0.07      
15 A 1177 1115 2.48      
16 A 1032 978 10.25      
17 A 1000 947 17.97      
18 A 968 917 11.99      
19 A 917 869 0.04      
20 A 899 852 5.79      
21 A 873 827 0.64      
22 A 770 730 7.77      
23 A 717 680 34.51      
24 A 571 541 4.38      
25 A 535 508 4.90      
26 A 518 491 5.99      
27 A 441 418 17.25      
28 A 342 324 14.00      
29 A 197 186 5.16      
30 A 30 29 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 20005.5 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 18963.2 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 MP2/TZVP
ABC
0.17731 0.09192 0.06120

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.006 -1.306 -0.000
C2 0.268 -1.229 -0.000
C3 1.094 0.030 -0.000
C4 0.316 1.277 0.000
C5 -1.024 1.219 -0.000
C6 -1.771 -0.076 0.000
O7 2.314 -0.018 0.000
H8 0.850 -2.150 -0.000
H9 0.866 2.211 -0.000
H10 -1.623 2.125 -0.000
H11 -2.433 -0.113 -0.870
H12 -2.433 -0.113 0.870

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.27622.48892.90172.52501.44853.56052.03823.98343.48652.05382.0538
C21.27621.50562.50672.76822.34232.37701.08933.49103.85073.04973.0496
C32.48891.50561.47052.42972.86701.22042.19362.19273.43153.63633.6362
C42.90172.50671.47051.34152.48692.38133.46871.08312.11603.20133.2013
C52.52502.76822.42971.34151.49463.56023.85522.13431.08622.12532.1253
C61.44852.34232.86702.48691.49464.08493.34173.48972.20641.09441.0944
O73.56052.37701.22042.38133.56024.08492.58632.65804.48254.82724.8271
H82.03821.08932.19363.46873.85523.34172.58634.36074.93893.96023.9602
H93.98343.49102.19271.08312.13433.48972.65804.36072.48994.12804.1279
H103.48653.85073.43152.11601.08622.20644.48254.93892.48992.53482.5349
H112.05383.04973.63633.20132.12531.09444.82723.96024.12802.53481.7402
H122.05383.04963.63623.20132.12531.09444.82713.96024.12792.53491.7402

picture of 3(6H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 126.741 N1 C2 H8 118.791
N1 C6 C5 118.168 N1 C6 H11 106.916
N1 C6 H12 106.916 C2 N1 C6 118.418
C2 C3 C4 114.753 C2 C3 O7 121.021
C3 N1 H8 56.925 C3 C4 C5 119.475
C3 C4 H9 117.528 C4 C3 O7 124.226
C4 C5 C6 122.446 C4 C5 H10 120.937
C5 C4 H9 122.997 C5 C6 H11 109.377
C5 C6 H12 109.377 C6 C5 H10 116.617
H11 C6 H12 105.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability