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All results from a given calculation for C5H5NO (3(2H)-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-321.549272
Energy at 298.15K-321.555606
Nuclear repulsion energy270.668546
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' 3241 3095 4.42      
2 A' 3215 3070 6.09      
3 A' 3171 3028 30.87      
4 A' 3065 2927 1.25      
5 A' 1734 1656 95.42      
6 A' 1700 1624 38.52      
7 A' 1626 1553 14.16      
8 A' 1452 1387 22.41      
9 A' 1440 1375 13.73      
10 A' 1414 1350 4.14      
11 A' 1328 1268 3.72      
12 A' 1260 1203 11.51      
13 A' 1169 1116 31.21      
14 A' 1004 959 1.79      
15 A' 994 949 20.59      
16 A' 918 877 8.71      
17 A' 750 716 8.02      
18 A' 561 535 8.58      
19 A' 515 492 9.57      
20 A' 428 409 13.26      
21 A" 3094 2954 0.03      
22 A" 1274 1217 3.93      
23 A" 1089 1040 0.94      
24 A" 1029 982 0.47      
25 A" 946 904 5.48      
26 A" 817 780 50.63      
27 A" 560 535 2.87      
28 A" 485 463 1.32      
29 A" 275 263 4.62      
30 A" 79 75 13.68      

Unscaled Zero Point Vibrational Energy (zpe) 20315.9 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 19399.6 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
0.17796 0.09067 0.06073

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 -1.155 -1.254 0.000
C2 -1.262 0.213 0.000
C3 0.000 1.067 0.000
C4 1.266 0.325 0.000
C5 1.273 -1.018 0.000
C6 0.020 -1.772 0.000
O7 -0.053 2.303 0.000
H8 -1.867 0.492 0.872
H9 2.174 0.912 0.000
H10 2.201 -1.577 0.000
H11 0.091 -2.855 0.000
H12 -1.867 0.492 -0.872

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.47122.59272.88992.43981.28393.72332.07763.97223.37212.02952.0776
C21.47121.52362.52992.81842.36272.41371.09753.50673.89893.35391.0975
C32.59271.52361.46742.44342.83881.23652.13962.17993.44103.92372.1396
C42.88992.52991.46741.34282.43832.37733.25631.08232.11973.38983.2563
C52.43982.81842.44341.34281.46243.57583.59242.13041.08372.18453.5924
C61.28392.36272.83882.43831.46244.07473.07353.44162.19021.08633.0735
O73.72332.41371.23652.37733.57584.07472.70712.62594.48755.16002.7071
H82.07761.09752.13963.25633.59243.07352.70714.15614.64753.97551.7434
H93.97223.50672.17991.08232.13043.44162.62594.15612.48984.30514.1561
H103.37213.89893.44102.11971.08372.19024.48754.64752.48982.46684.6475
H112.02953.35393.92373.38982.18451.08635.16003.97554.30512.46683.9755
H122.07761.09752.13963.25633.59243.07352.70711.74344.15614.64753.9755

picture of 3(2H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 119.925 N1 C2 H8 107.068
N1 C2 H12 107.068 N1 C6 C5 125.219
N1 C6 H11 117.556 C2 N1 C6 117.934
C2 C3 C4 115.508 C2 C3 O7 121.620
C3 C2 H8 108.336 C3 C2 H12 108.336
C3 C4 C5 120.734 C3 C4 H9 116.706
C4 C3 O7 122.873 C4 C5 C6 120.680
C4 C5 H10 121.395 C5 C4 H9 122.559
C5 C6 H11 117.226 C6 C5 H10 117.925
H8 C2 H12 105.178
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 -0.457      
2 C -0.366      
3 C 0.371      
4 C -0.206      
5 C -0.253      
6 C 0.073      
7 O -0.468      
8 H 0.291      
9 H 0.249      
10 H 0.235      
11 H 0.241      
12 H 0.291      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.594 -1.948 0.000 2.518
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.074 -4.498 0.000
y -4.498 -46.185 0.000
z 0.000 0.000 -40.396
Traceless
 xyz
x 6.217 -4.498 0.000
y -4.498 -7.450 0.000
z 0.000 0.000 1.234
Polar
3z2-r22.467
x2-y29.111
xy-4.498
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.516 -0.586 0.000
y -0.586 10.610 0.000
z 0.000 0.000 3.475


<r2> (average value of r2) Å2
<r2> 180.246
(<r2>)1/2 13.426