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All results from a given calculation for C5H5NO (2(1H)-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-321.603671
Energy at 298.15K-321.610510
Nuclear repulsion energy274.673213
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' 3559 3399 61.60      
2 A' 3279 3131 2.31      
3 A' 3263 3116 1.53      
4 A' 3240 3094 2.61      
5 A' 3217 3072 8.26      
6 A' 1775 1695 386.78      
7 A' 1680 1605 46.93      
8 A' 1592 1521 49.14      
9 A' 1509 1441 0.58      
10 A' 1471 1405 9.43      
11 A' 1425 1360 2.56      
12 A' 1276 1219 21.39      
13 A' 1252 1195 3.40      
14 A' 1181 1127 13.87      
15 A' 1117 1067 25.02      
16 A' 1026 980 12.60      
17 A' 1017 971 0.95      
18 A' 818 782 5.34      
19 A' 624 596 0.68      
20 A' 553 528 5.03      
21 A' 447 427 6.32      
22 A" 1058 1010 1.70      
23 A" 1003 958 0.64      
24 A" 912 871 57.28      
25 A" 832 795 74.48      
26 A" 792 757 13.83      
27 A" 741 708 66.83      
28 A" 524 500 52.50      
29 A" 406 388 0.51      
30 A" 190 182 2.82      

Unscaled Zero Point Vibrational Energy (zpe) 20890.0 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 19947.9 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
0.18975 0.09211 0.06201

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 -1.141 0.229 0.000
C2 0.000 1.070 0.000
C3 1.237 0.318 0.000
C4 1.267 -1.041 0.000
C5 0.065 -1.807 0.000
C6 -1.116 -1.135 0.000
O7 -0.134 2.301 0.000
H8 2.142 0.907 0.000
H9 2.218 -1.559 0.000
H10 0.084 -2.885 0.000
H11 -2.074 -1.636 0.000
H12 -2.027 0.725 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.41722.37942.72172.36591.36382.30363.35213.80523.34642.08551.0160
C21.41721.44742.46152.87712.47091.23842.14823.43963.95583.40932.0563
C32.37941.44741.35932.42652.76542.41061.07992.11813.40433.84493.2895
C42.72172.46151.35931.42482.38453.62332.13571.08362.19073.39353.7374
C52.36592.87712.42651.42481.35904.11233.41742.16741.07872.14623.2846
C61.36382.47092.76542.38451.35903.57323.84513.36132.12261.08142.0712
O72.30361.23842.41063.62334.11233.57322.66884.52015.19064.38902.4630
H83.35212.14821.07992.13573.41743.84512.66882.46734.31464.92394.1732
H93.80523.43962.11811.08362.16743.36134.52012.46732.51254.29334.8210
H103.34643.95583.40432.19071.07872.12265.19064.31462.51252.49414.1827
H112.08553.40933.84493.39352.14621.08144.38904.92394.29332.49412.3618
H121.01602.05633.28953.73743.28462.07122.46304.17324.82104.18272.3618

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 112.320 N1 C2 O7 120.183
N1 C6 C5 120.671 N1 C6 H11 116.581
C2 N1 C6 125.358 C2 N1 H12 114.354
C2 C3 C4 122.533 C2 C3 H8 115.654
C3 C2 O7 127.497 C3 C4 C5 121.266
C3 C4 H9 119.810 C4 C3 H8 121.812
C4 C5 C6 117.852 C4 C5 H10 121.492
C5 C4 H9 118.924 C5 C6 H11 122.748
C6 N1 H12 120.287 C6 C5 H10 120.656
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 -0.786      
2 C 0.642      
3 C -0.287      
4 C -0.170      
5 C -0.300      
6 C 0.136      
7 O -0.524      
8 H 0.236      
9 H 0.229      
10 H 0.219      
11 H 0.252      
12 H 0.353      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.357 -3.788 0.000 4.024
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.455 0.132 0.000
y 0.132 -45.377 0.000
z 0.000 0.000 -43.012
Traceless
 xyz
x 13.739 0.132 0.000
y 0.132 -8.643 0.000
z 0.000 0.000 -5.096
Polar
3z2-r2-10.192
x2-y214.922
xy0.132
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.128 0.008 0.000
y 0.008 11.206 0.000
z 0.000 0.000 2.381


<r2> (average value of r2) Å2
<r2> 177.010
(<r2>)1/2 13.305