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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-321.555615
Energy at 298.15K-321.562000
Nuclear repulsion energy271.566627
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 B1B95/3-21G
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' 3246 3106 3.80      
2 A' 3202 3064 5.06      
3 A' 3129 2993 38.04      
4 A' 3035 2903 0.60      
5 A' 1763 1686 159.51      
6 A' 1724 1649 30.26      
7 A' 1664 1592 85.54      
8 A' 1469 1406 32.24      
9 A' 1441 1378 17.06      
10 A' 1424 1362 5.31      
11 A' 1363 1304 25.52      
12 A' 1244 1190 25.27      
13 A' 1136 1087 61.04      
14 A' 1010 966 3.85      
15 A' 944 903 23.03      
16 A' 882 844 10.05      
17 A' 758 726 10.65      
18 A' 596 571 0.14      
19 A' 544 521 1.10      
20 A' 458 438 2.72      
21 A" 3059 2926 0.83      
22 A" 1253 1198 0.09      
23 A" 1067 1021 0.10      
24 A" 1024 980 15.44      
25 A" 901 862 32.16      
26 A" 820 784 15.66      
27 A" 627 600 15.48      
28 A" 381 364 1.40      
29 A" 319 305 2.97      
30 A" 77 74 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 20278.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 19400.6 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 B1B95/3-21G
ABC
0.18007 0.09181 0.06150

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.258 0.383 0.000
C2 0.000 1.091 0.000
C3 1.240 0.292 0.000
C4 1.227 -1.042 0.000
C5 -0.057 -1.802 0.000
C6 -1.258 -0.897 0.000
O7 0.004 2.318 0.000
H8 2.161 0.860 0.000
H9 2.152 -1.610 0.000
H10 -0.113 -2.465 0.877
H11 -2.225 -1.399 0.000
H12 -0.113 -2.465 -0.877

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.44372.49982.86502.49351.28022.31093.45213.94943.19252.02723.1925
C21.44371.47472.46052.89372.35241.22772.17313.45283.66413.33903.6641
C32.49981.47471.33422.46402.76642.37311.08172.10933.19423.85573.1942
C42.86502.46051.33421.49322.48933.57592.11821.08472.14293.47102.1429
C52.49352.89372.46401.49321.50324.12133.46522.21751.10072.20481.1007
C61.28022.35242.76642.48931.50323.45443.84363.48302.13021.08972.1302
O72.31091.22772.37313.57594.12133.45442.60354.47674.86474.33464.8647
H83.45212.17311.08172.11823.46523.84362.60352.46944.12244.93334.1224
H93.94943.45282.10931.08472.21753.48304.47672.46942.57484.38182.5748
H103.19253.66413.19422.14291.10072.13024.86474.12242.57482.52331.7542
H112.02723.33903.85573.47102.20481.08974.33464.93334.38182.52332.5233
H123.19253.66413.19422.14291.10072.13024.86474.12242.57481.75422.5233

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 117.865 N1 C2 O7 119.556
N1 C6 C5 127.048 N1 C6 H11 117.382
C2 N1 C6 119.331 C2 C3 C4 122.243
C2 C3 H8 115.587 C3 C2 O7 122.579
C3 C4 C5 121.158 C3 C4 H9 121.036
C4 C3 H8 122.169 C4 C5 C6 112.355
C4 C5 H10 110.496 C4 C5 H12 110.496
C5 C4 H9 117.806 C5 C6 H11 115.570
C6 C5 H10 108.797 C6 C5 H12 108.797
H10 C5 H12 105.659
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.509      
2 C 0.563      
3 C -0.260      
4 C -0.150      
5 C -0.569      
6 C 0.114      
7 O -0.443      
8 H 0.242      
9 H 0.236      
10 H 0.269      
11 H 0.240      
12 H 0.269      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.676 -5.299 0.000 5.558
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.761 3.056 0.000
y 3.056 -42.302 0.000
z 0.000 0.000 -40.429
Traceless
 xyz
x 2.604 3.056 0.000
y 3.056 -2.706 0.000
z 0.000 0.000 0.102
Polar
3z2-r20.205
x2-y23.540
xy3.056
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.390 0.463 0.000
y 0.463 11.931 0.000
z 0.000 0.000 3.515


<r2> (average value of r2) Å2
<r2> 179.916
(<r2>)1/2 13.413