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All results from a given calculation for C5H5NO (2(5H)-Pyridinone)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-322.493061
Energy at 298.15K-322.499263
HF Energy-321.532946
Nuclear repulsion energy271.517638
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 MP2/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3259 3074 3.60      
2 A' 3226 3042 6.21      
3 A' 3163 2983 32.85      
4 A' 3071 2896 2.42      
5 A' 1773 1672 162.93      
6 A' 1718 1620 11.64      
7 A' 1675 1580 51.21      
8 A' 1496 1410 19.46      
9 A' 1454 1371 13.97      
10 A' 1442 1360 42.10      
11 A' 1410 1330 8.14      
12 A' 1266 1194 54.13      
13 A' 1175 1108 28.04      
14 A' 1030 971 2.44      
15 A' 968 913 17.49      
16 A' 915 863 4.87      
17 A' 786 741 8.74      
18 A' 594 561 0.18      
19 A' 543 512 1.64      
20 A' 468 441 3.42      
21 A" 3105 2928 2.54      
22 A" 1230 1160 0.02      
23 A" 1040 980 7.91      
24 A" 977 922 0.24      
25 A" 863 814 14.32      
26 A" 792 747 32.72      
27 A" 600 565 4.19      
28 A" 364 343 1.42      
29 A" 276 260 2.87      
30 A" 39 37 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20358.2 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 19197.8 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 MP2/6-31G*
ABC
0.17890 0.09238 0.06160

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.264 0.401 0.000
C2 0.000 1.084 0.000
C3 1.247 0.289 0.000
C4 1.228 -1.055 0.000
C5 -0.065 -1.797 0.000
C6 -1.258 -0.886 0.000
O7 0.015 2.308 0.000
H8 2.172 0.859 0.000
H9 2.152 -1.629 0.000
H10 -0.133 -2.467 0.871
H11 -2.236 -1.378 0.000
H12 -0.133 -2.467 -0.871

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.43702.51432.88612.50421.28752.29583.46663.97413.20362.02733.2036
C21.43701.47932.46632.88202.33781.22382.18363.46323.65853.32593.6585
C32.51431.47931.34402.46452.76732.36561.08612.12083.20273.86143.2027
C42.88612.46631.34401.49042.49133.57492.13411.08822.14533.47812.1453
C52.50422.88202.46451.49041.50104.10573.47242.22301.10062.21061.1006
C61.28752.33782.76732.49131.50103.43833.84843.48982.12641.09442.1264
O72.29581.22382.36563.57494.10573.43832.59894.48004.85554.31864.8555
H83.46662.18361.08612.13413.47243.84842.59892.48844.13894.94284.1389
H93.97413.46322.12081.08822.22303.48984.48002.48842.58444.39452.5844
H103.20363.65853.20272.14531.10062.12644.85554.13892.58442.52261.7416
H112.02733.32593.86143.47812.21061.09444.31864.94284.39452.52262.5226
H123.20363.65853.20272.14531.10062.12644.85554.13892.58441.74162.5226

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 119.106 N1 C2 O7 119.056
N1 C6 C5 127.640 N1 C6 H11 116.438
C2 N1 C6 118.095 C2 C3 C4 121.670
C2 C3 H8 115.833 C3 C2 O7 121.838
C3 C4 C5 120.713 C3 C4 H9 121.019
C4 C3 H8 122.497 C4 C5 C6 112.776
C4 C5 H10 110.892 C4 C5 H12 110.892
C5 C4 H9 118.268 C5 C6 H11 115.921
C6 C5 H10 108.663 C6 C5 H12 108.663
H10 C5 H12 104.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability