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All results from a given calculation for C5H5NO (2(5H)-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-319.724495
Energy at 298.15K-319.731318
Nuclear repulsion energy273.530887
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' 3402 3081 3.14      
2 A' 3357 3040 5.21      
3 A' 3312 2999 35.02      
4 A' 3186 2886 2.56      
5 A' 1959 1774 312.74      
6 A' 1873 1696 64.09      
7 A' 1833 1660 48.84      
8 A' 1599 1448 21.60      
9 A' 1552 1405 13.63      
10 A' 1540 1395 7.58      
11 A' 1480 1340 31.01      
12 A' 1345 1218 33.07      
13 A' 1225 1109 84.24      
14 A' 1066 966 0.88      
15 A' 1027 930 27.80      
16 A' 911 825 7.63      
17 A' 811 734 7.11      
18 A' 647 586 1.01      
19 A' 590 534 2.65      
20 A' 502 455 4.44      
21 A" 3210 2907 3.06      
22 A" 1374 1245 0.05      
23 A" 1198 1085 0.14      
24 A" 1139 1032 19.41      
25 A" 986 893 51.36      
26 A" 921 834 28.01      
27 A" 697 631 7.44      
28 A" 429 389 3.31      
29 A" 358 324 2.31      
30 A" 102 92 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 21814.5 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 19755.2 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
0.18090 0.09352 0.06235

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.241 0.379 0.000
C2 0.000 1.088 0.000
C3 1.244 0.287 0.000
C4 1.223 -1.031 0.000
C5 -0.069 -1.795 0.000
C6 -1.266 -0.881 0.000
O7 0.010 2.293 0.000
H8 2.156 0.847 0.000
H9 2.133 -1.598 0.000
H10 -0.123 -2.445 0.872
H11 -2.227 -1.363 0.000
H12 -0.123 -2.445 -0.872

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.42932.48742.83922.47081.26022.28603.42943.91153.16012.00173.1601
C21.42931.47972.44632.88402.34031.20502.16943.43013.64053.31143.6405
C32.48741.47971.31822.46182.76852.35521.06992.08433.17673.84353.1767
C42.83922.44631.31821.50082.49333.53822.09701.07282.13763.46582.1376
C52.47082.88402.46181.50081.50674.08893.45422.21101.08822.20131.0882
C61.26022.34032.76852.49331.50673.42013.83333.47432.12431.07532.1243
O72.28601.20502.35523.53824.08893.42012.58784.43274.81884.28564.8188
H83.42942.16941.06992.09703.45423.83332.58782.44514.09744.90864.0974
H93.91153.43012.08431.07282.21103.47434.43272.44512.56284.36692.5628
H103.16013.64053.17672.13761.08822.12434.81884.09742.56282.52141.7431
H112.00173.31143.84353.46582.20131.07534.28564.90864.36692.52142.5214
H123.16013.64053.17672.13761.08822.12434.81884.09742.56281.74312.5214

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 117.526 N1 C2 O7 120.174
N1 C6 C5 126.268 N1 C6 H11 117.762
C2 N1 C6 120.829 C2 C3 C4 121.827
C2 C3 H8 115.681 C3 C2 O7 122.301
C3 C4 C5 121.556 C3 C4 H9 120.976
C4 C3 H8 122.493 C4 C5 C6 111.995
C4 C5 H10 110.294 C4 C5 H12 110.294
C5 C4 H9 117.469 C5 C6 H11 115.971
C6 C5 H10 108.825 C6 C5 H12 108.825
H10 C5 H12 106.434
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 -0.667      
2 C 0.778      
3 C -0.344      
4 C -0.150      
5 C -0.590      
6 C 0.197      
7 O -0.555      
8 H 0.274      
9 H 0.260      
10 H 0.269      
11 H 0.258      
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
  1.730 -5.903 0.000 6.151
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.583 3.451 0.000
y 3.451 -44.571 0.000
z 0.000 0.000 -41.108
Traceless
 xyz
x 3.257 3.451 0.000
y 3.451 -4.225 0.000
z 0.000 0.000 0.969
Polar
3z2-r21.937
x2-y24.988
xy3.451
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.631 0.546 0.000
y 0.546 11.897 0.000
z 0.000 0.000 3.364


<r2> (average value of r2) Å2
<r2> 178.588
(<r2>)1/2 13.364