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

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-319.940733
Energy at 298.15K-319.946982
Nuclear repulsion energy271.836321
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 LSDA/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' 3149 3093 1.68      
2 A' 3106 3050 2.86      
3 A' 3012 2958 34.85      
4 A' 2939 2886 0.32      
5 A' 1725 1694 118.06      
6 A' 1686 1656 46.81      
7 A' 1626 1596 81.45      
8 A' 1401 1376 18.18      
9 A' 1393 1368 50.00      
10 A' 1377 1352 4.85      
11 A' 1323 1299 30.59      
12 A' 1206 1184 29.22      
13 A' 1117 1097 42.98      
14 A' 1002 984 5.90      
15 A' 929 912 22.11      
16 A' 889 873 12.22      
17 A' 765 751 10.46      
18 A' 594 583 0.11      
19 A' 543 533 0.84      
20 A' 453 445 2.19      
21 A" 2959 2906 0.07      
22 A" 1195 1174 0.13      
23 A" 1023 1004 0.37      
24 A" 982 964 13.13      
25 A" 881 866 29.29      
26 A" 781 767 9.96      
27 A" 605 594 21.90      
28 A" 370 363 0.77      
29 A" 306 301 4.26      
30 A" 66 65 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 19700.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 19346.0 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 LSDA/3-21G*
ABC
0.18190 0.09173 0.06168

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.250 0.384 0.000
C2 0.000 1.089 0.000
C3 1.230 0.293 0.000
C4 1.220 -1.045 0.000
C5 -0.058 -1.795 0.000
C6 -1.252 -0.899 0.000
O7 0.007 2.321 0.000
H8 2.161 0.868 0.000
H9 2.154 -1.619 0.000
H10 -0.118 -2.474 0.880
H11 -2.230 -1.411 0.000
H12 -0.118 -2.474 -0.880

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.43462.48152.85342.48331.28312.30933.44443.94973.19772.04473.1977
C21.43461.46492.45822.88422.34911.23272.17193.46053.67203.34933.6720
C32.48151.46491.33882.45392.75362.36821.09352.12443.20203.85673.2020
C42.85342.45821.33881.48192.47603.57852.13191.09652.14643.46902.1464
C52.48332.88422.45391.48191.49224.11683.46612.21951.11362.20511.1136
C61.28312.34912.75362.47601.49223.45783.84273.48132.13101.10362.1310
O72.30931.23272.36823.57854.11683.45782.59824.48784.87744.35094.8774
H83.44442.17191.09352.13193.46613.84272.59822.48734.13974.94634.1397
H93.94973.46052.12441.09652.21953.48134.48782.48732.58244.38892.5824
H103.19773.67203.20202.14641.11362.13104.87744.13972.58242.52301.7607
H112.04473.34933.85673.46902.20511.10364.35094.94634.38892.52302.5230
H123.19773.67203.20202.14641.11362.13104.87744.13972.58241.76072.5230

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 117.700 N1 C2 O7 119.748
N1 C6 C5 126.799 N1 C6 H11 117.699
C2 N1 C6 119.513 C2 C3 C4 122.444
C2 C3 H8 115.429 C3 C2 O7 122.553
C3 C4 C5 120.822 C3 C4 H9 121.134
C4 C3 H8 122.126 C4 C5 C6 112.722
C4 C5 H10 110.783 C4 C5 H12 110.783
C5 C4 H9 118.045 C5 C6 H11 115.502
C6 C5 H10 108.865 C6 C5 H12 108.865
H10 C5 H12 104.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.439      
2 C 0.463      
3 C -0.233      
4 C -0.148      
5 C -0.581      
6 C 0.075      
7 O -0.389      
8 H 0.233      
9 H 0.232      
10 H 0.276      
11 H 0.236      
12 H 0.276      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.641 -5.285 0.000 5.533
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.679 2.920 0.000
y 2.920 -41.651 0.000
z 0.000 0.000 -40.416
Traceless
 xyz
x 2.355 2.920 0.000
y 2.920 -2.103 0.000
z 0.000 0.000 -0.251
Polar
3z2-r2-0.502
x2-y22.972
xy2.920
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.726 0.486 0.000
y 0.486 12.111 0.000
z 0.000 0.000 3.588


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000