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 (2(5H)-Pyridinone)

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-323.521731
Energy at 298.15K-323.527990
HF Energy-323.521731
Nuclear repulsion energy272.215215
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 TPSSh/6-31G(2df,p)
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' 3201 3089 8.91      
2 A' 3162 3051 10.77      
3 A' 3076 2969 44.49      
4 A' 2994 2890 6.72      
5 A' 1769 1707 214.42      
6 A' 1708 1648 81.20      
7 A' 1656 1598 57.72      
8 A' 1432 1382 6.06      
9 A' 1416 1366 28.40      
10 A' 1402 1353 32.06      
11 A' 1361 1313 8.56      
12 A' 1221 1178 52.85      
13 A' 1131 1091 33.83      
14 A' 994 960 1.66      
15 A' 947 914 17.31      
16 A' 885 854 6.97      
17 A' 772 745 7.56      
18 A' 581 561 0.33      
19 A' 535 516 1.95      
20 A' 457 441 2.82      
21 A" 3012 2906 4.70      
22 A" 1193 1151 0.00      
23 A" 1035 998 1.07      
24 A" 1002 967 8.51      
25 A" 876 845 19.43      
26 A" 793 765 11.30      
27 A" 601 580 3.92      
28 A" 365 352 1.49      
29 A" 303 292 2.98      
30 A" 63 60 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19970.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19271.3 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 TPSSh/6-31G(2df,p)
ABC
0.17929 0.09297 0.06191

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.261 0.401 0.000
C2 0.000 1.083 0.000
C3 1.246 0.287 0.000
C4 1.228 -1.051 0.000
C5 -0.066 -1.792 0.000
C6 -1.259 -0.878 0.000
O7 0.016 2.297 0.000
H8 2.168 0.859 0.000
H9 2.149 -1.630 0.000
H10 -0.136 -2.466 0.868
H11 -2.235 -1.372 0.000
H12 -0.136 -2.466 -0.868

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.43342.50972.88202.49711.27902.28553.45913.96883.19962.02303.1996
C21.43341.47862.46212.87492.32981.21432.17923.46063.65553.31983.6555
C32.50971.47861.33802.45782.76222.35701.08472.11863.20003.85633.2000
C42.88202.46211.33801.49112.49293.56102.12861.08732.14863.47842.1486
C52.49712.87492.45781.49111.50234.08923.46622.22071.10152.20941.1015
C61.27902.32982.76222.49291.50233.42093.84133.48932.12951.09452.1295
O72.28551.21432.35703.56104.08923.42092.58844.46894.84344.30414.8434
H83.45912.17921.08472.12863.46623.84132.58842.48894.13694.93584.1369
H93.96883.46062.11861.08732.22073.48934.46892.48892.58324.39162.5832
H103.19963.65553.20002.14861.10152.12954.84344.13692.58322.52121.7368
H112.02303.31983.85633.47842.20941.09454.30414.93584.39162.52122.5212
H123.19963.65553.20002.14861.10152.12954.84344.13692.58321.73682.5212

picture of 2(5H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 119.041 N1 C2 O7 119.122
N1 C6 C5 127.563 N1 C6 H11 116.720
C2 N1 C6 118.284 C2 C3 C4 121.805
C2 C3 H8 115.598 C3 C2 O7 121.837
C3 C4 C5 120.530 C3 C4 H9 121.400
C4 C3 H8 122.597 C4 C5 C6 112.777
C4 C5 H10 111.042 C4 C5 H12 111.042
C5 C4 H9 118.070 C5 C6 H11 115.717
C6 C5 H10 108.763 C6 C5 H12 108.763
H10 C5 H12 104.060
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability