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All results from a given calculation for C5H5NO (2(3H)-Pyridinone)

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-319.722459
Energy at 298.15K-319.729143
Nuclear repulsion energy273.641710
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 HF/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 3397 3077 9.25      
2 A 3359 3042 4.84      
3 A 3332 3018 33.71      
4 A 3235 2929 0.36      
5 A 3207 2904 1.40      
6 A 1951 1767 268.89      
7 A 1870 1694 55.75      
8 A 1773 1606 164.83      
9 A 1582 1433 24.90      
10 A 1564 1416 13.40      
11 A 1543 1398 19.43      
12 A 1476 1336 3.47      
13 A 1377 1247 6.34      
14 A 1333 1207 2.72      
15 A 1212 1097 91.21      
16 A 1191 1079 4.86      
17 A 1162 1052 0.00      
18 A 1063 963 37.41      
19 A 1052 952 4.86      
20 A 1033 935 10.79      
21 A 995 901 13.00      
22 A 849 769 83.24      
23 A 790 716 5.99      
24 A 644 583 0.06      
25 A 632 572 1.98      
26 A 583 528 5.05      
27 A 522 473 0.05      
28 A 500 453 3.70      
29 A 305 276 3.28      
30 A 39 35 2.76      

Unscaled Zero Point Vibrational Energy (zpe) 21784.5 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 19728.1 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 HF/3-21G
ABC
0.17995 0.09395 0.06242

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.338 -1.272 0.000
C2 -1.057 -0.047 -0.000
C3 -0.277 1.268 0.000
C4 1.217 1.119 -0.000
C5 1.782 -0.074 -0.000
C6 0.930 -1.268 0.000
O7 -2.261 -0.044 -0.000
H8 -0.596 1.837 0.869
H9 1.803 2.018 -0.000
H10 2.843 -0.208 -0.000
H11 1.425 -2.221 0.000
H12 -0.596 1.837 -0.869

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.41972.54022.85242.43511.26852.28073.23783.92513.35512.00303.2380
C21.41971.52882.55552.83862.33221.20392.12523.52743.90353.29952.1253
C32.54021.52881.50122.45712.80882.37831.08642.21103.45143.88211.0864
C42.85242.55551.50121.32012.40513.66712.13441.07262.09903.34712.1344
C52.43512.83862.45711.32011.46714.04243.17142.09161.07012.17683.1715
C61.26852.33222.80882.40511.46713.41763.56733.40022.18791.07373.5675
O72.28071.20392.37833.66714.04243.41762.65804.55695.10674.28082.6579
H83.23782.12521.08642.13443.17143.56732.65802.55784.09414.61591.7375
H93.92513.52742.21101.07262.09163.40024.55692.55782.45634.25582.5577
H103.35513.90353.45142.09901.07012.18795.10674.09412.45632.46314.0942
H112.00303.29953.88213.34712.17681.07374.28084.61594.25582.46314.6161
H123.23802.12531.08642.13443.17153.56752.65791.73752.55774.09424.6161

picture of 2(3H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 118.933 N1 C2 O7 120.540
N1 C6 C5 125.626 N1 C6 H11 117.316
C2 N1 C6 120.253 C2 C3 C4 114.998
C2 C3 H8 107.505 C2 C3 H12 107.506
C3 C2 O7 120.527 C3 C4 C5 121.001
C3 C4 H9 117.451 C4 C3 H8 110.114
C4 C3 H12 110.116 C4 C5 C6 119.190
C4 C5 H10 122.499 C5 C4 H9 121.549
C5 C6 H11 117.058 C6 C5 H10 118.311
H8 C3 H12 106.193
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.687      
2 C 0.796      
3 C -0.618      
4 C -0.136      
5 C -0.350      
6 C 0.186      
7 O -0.550      
8 H 0.287      
9 H 0.261      
10 H 0.256      
11 H 0.268      
12 H 0.287      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.986 2.581 0.000 5.614
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.111 -3.866 -0.000
y -3.866 -38.478 0.000
z -0.000 0.000 -41.014
Traceless
 xyz
x -6.365 -3.866 -0.000
y -3.866 5.084 0.000
z -0.000 0.000 1.280
Polar
3z2-r22.561
x2-y2-7.633
xy-3.866
xz-0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.863 -0.670 0.000
y -0.670 8.321 0.000
z 0.000 0.000 3.350


<r2> (average value of r2) Å2
<r2> 177.700
(<r2>)1/2 13.330