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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-320.390366
Energy at 298.15K-320.396647
HF Energy-319.715913
Nuclear repulsion energy268.085362
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 MP2/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3227 3080 6.08      
2 A' 3192 3047 5.52      
3 A' 3133 2991 41.91      
4 A' 3060 2921 1.40      
5 A' 1677 1600 42.99      
6 A' 1644 1569 23.85      
7 A' 1582 1510 43.19      
8 A' 1535 1465 36.10      
9 A' 1455 1389 12.30      
10 A' 1442 1376 3.59      
11 A' 1364 1302 17.29      
12 A' 1257 1199 14.81      
13 A' 1117 1067 66.65      
14 A' 1001 955 0.60      
15 A' 938 896 24.67      
16 A' 857 818 8.14      
17 A' 710 677 14.46      
18 A' 595 568 0.05      
19 A' 537 513 0.78      
20 A' 456 436 2.11      
21 A" 3089 2948 2.99      
22 A" 1268 1211 0.08      
23 A" 1058 1010 7.38      
24 A" 1014 968 2.77      
25 A" 891 850 20.48      
26 A" 819 782 28.88      
27 A" 624 596 10.72      
28 A" 377 360 1.44      
29 A" 303 289 1.54      
30 A" 57 55 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 20138.1 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 19221.8 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 MP2/3-21G
ABC
0.17517 0.08945 0.05987

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.287 0.381 0.000
C2 0.000 1.104 0.000
C3 1.255 0.301 0.000
C4 1.247 -1.047 0.000
C5 -0.048 -1.829 0.000
C6 -1.269 -0.919 0.000
O7 -0.003 2.351 0.000
H8 2.180 0.869 0.000
H9 2.177 -1.609 0.000
H10 -0.097 -2.486 0.882
H11 -2.235 -1.427 0.000
H12 -0.097 -2.486 -0.882

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.47662.54352.90882.53421.30022.35103.50123.99593.22762.04123.2276
C21.47661.49022.48632.93362.38811.24602.19233.47923.69863.37653.6986
C32.54351.49021.34732.49612.80262.40501.08552.12093.22033.89363.2203
C42.90882.48631.34731.51222.51863.61982.13061.08752.15753.50202.1575
C52.53422.93362.49611.51221.52294.17953.49822.23581.10092.22381.1009
C61.30022.38812.80262.51861.52293.50573.88413.51462.14641.09142.1464
O72.35101.24602.40503.61984.17953.50572.63814.52034.91734.38724.9173
H83.50122.19231.08552.13063.49823.88412.63812.47794.14924.97554.1492
H93.99593.47922.12091.08752.23583.51464.52032.47792.59214.41592.5921
H103.22763.69863.22032.15751.10092.14644.91734.14922.59212.54361.7633
H112.04123.37653.89363.50202.22381.09144.38724.97554.41592.54362.5436
H123.22763.69863.22032.15751.10092.14644.91734.14922.59211.76332.5436

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 118.034 N1 C2 O7 119.180
N1 C6 C5 127.519 N1 C6 H11 116.914
C2 N1 C6 118.497 C2 C3 C4 122.301
C2 C3 H8 115.791 C3 C2 O7 122.787
C3 C4 C5 121.489 C3 C4 H9 120.801
C4 C3 H8 121.908 C4 C5 C6 112.161
C4 C5 H10 110.318 C4 C5 H12 110.318
C5 C4 H9 117.711 C5 C6 H11 115.567
C6 C5 H10 108.717 C6 C5 H12 108.717
H10 C5 H12 106.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.621      
2 C 0.734      
3 C -0.338      
4 C -0.149      
5 C -0.576      
6 C 0.172      
7 O -0.554      
8 H 0.276      
9 H 0.261      
10 H 0.268      
11 H 0.259      
12 H 0.268      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.916 -6.192 0.000 6.482
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.702 3.572 0.000
y 3.572 -44.771 0.000
z 0.000 0.000 -41.552
Traceless
 xyz
x 3.460 3.572 0.000
y 3.572 -4.144 0.000
z 0.000 0.000 0.685
Polar
3z2-r21.369
x2-y25.069
xy3.572
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.255 0.446 0.000
y 0.446 11.247 0.000
z 0.000 0.000 3.459


<r2> (average value of r2) Å2
<r2> 184.866
(<r2>)1/2 13.597