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All results from a given calculation for C5H5NO (2(1H)-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-319.994983
Energy at 298.15K-320.001721
Nuclear repulsion energy274.573185
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' 3434 3378 58.18      
2 A' 3186 3134 0.72      
3 A' 3174 3122 0.08      
4 A' 3142 3091 1.19      
5 A' 3123 3072 5.41      
6 A' 1762 1734 318.42      
7 A' 1642 1615 40.46      
8 A' 1566 1541 45.73      
9 A' 1476 1452 1.05      
10 A' 1432 1409 6.97      
11 A' 1375 1352 0.81      
12 A' 1250 1230 17.73      
13 A' 1214 1194 3.11      
14 A' 1154 1135 8.45      
15 A' 1094 1076 26.67      
16 A' 1021 1004 6.22      
17 A' 1003 987 5.78      
18 A' 809 796 3.70      
19 A' 618 608 1.01      
20 A' 547 538 3.99      
21 A' 439 432 6.41      
22 A" 1009 992 2.19      
23 A" 951 935 0.33      
24 A" 886 872 59.87      
25 A" 808 795 43.20      
26 A" 762 750 9.06      
27 A" 727 715 75.75      
28 A" 506 498 57.78      
29 A" 402 395 0.18      
30 A" 182 179 2.28      

Unscaled Zero Point Vibrational Energy (zpe) 20347.0 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 20013.3 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
0.19002 0.09208 0.06202

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 -1.140 0.221 0.000
C2 0.000 1.070 0.000
C3 1.232 0.324 0.000
C4 1.268 -1.039 0.000
C5 0.076 -1.804 0.000
C6 -1.112 -1.135 0.000
O7 -0.146 2.301 0.000
H8 2.143 0.924 0.000
H9 2.234 -1.556 0.000
H10 0.097 -2.894 0.000
H11 -2.075 -1.653 0.000
H12 -2.032 0.733 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.42132.37372.71772.36201.35612.30533.35773.81263.35102.09431.0285
C21.42131.43962.46062.87502.46971.23992.14853.44723.96473.42342.0596
C32.37371.43961.36362.42192.76132.40961.09122.13063.41223.85283.2888
C42.71772.46061.36361.41682.38283.62712.14861.09492.19393.39943.7456
C52.36202.87502.42191.41681.36414.11133.42272.17151.08972.15653.2985
C61.35612.46972.76132.38281.36413.56943.85223.37232.13441.09302.0818
O72.30531.23992.40963.62714.11133.56942.67234.53215.20054.39942.4524
H83.35772.14851.09122.14863.42273.85222.67232.48114.33134.94324.1797
H93.81263.44722.13061.09492.17153.37234.53212.48112.52084.30954.8405
H103.35103.96473.41222.19391.08972.13445.20054.33132.52082.50134.2051
H112.09433.42343.85283.39942.15651.09304.39944.94324.30952.50132.3863
H121.02852.05963.28883.74563.29852.08182.45244.17974.84054.20512.3863

picture of 2(1H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 112.132 N1 C2 O7 119.903
N1 C6 C5 120.528 N1 C6 H11 117.137
C2 N1 C6 125.529 C2 N1 H12 113.460
C2 C3 C4 122.732 C2 C3 H8 115.507
C3 C2 O7 127.966 C3 C4 C5 121.157
C3 C4 H9 119.735 C4 C3 H8 121.761
C4 C5 C6 117.922 C4 C5 H10 121.610
C5 C4 H9 119.108 C5 C6 H11 122.335
C6 N1 H12 121.011 C6 C5 H10 120.468
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 -0.704      
2 C 0.531      
3 C -0.262      
4 C -0.178      
5 C -0.274      
6 C 0.090      
7 O -0.461      
8 H 0.227      
9 H 0.223      
10 H 0.214      
11 H 0.248      
12 H 0.346      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.425 -3.564 0.000 3.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.437 0.106 0.000
y 0.106 -44.794 0.000
z 0.000 0.000 -43.051
Traceless
 xyz
x 13.486 0.106 0.000
y 0.106 -8.051 0.000
z 0.000 0.000 -5.435
Polar
3z2-r2-10.871
x2-y214.358
xy0.106
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.373 0.022 0.000
y 0.022 11.352 0.000
z 0.000 0.000 2.432


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