return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H5NO (4(1H)-Pryidinone)

using model chemistry: B1B95/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A'
Energy calculated at B1B95/CEP-31G*
 hartrees
Energy at 0K-57.053086
Energy at 298.15K-57.059541
Nuclear repulsion energy138.903735
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3689 3532 105.36      
2 A1 3243 3104 0.79      
3 A1 3217 3079 6.72      
4 A1 1758 1683 566.23      
5 A1 1694 1622 2.17      
6 A1 1418 1358 0.02      
7 A1 1187 1137 14.56      
8 A1 1019 975 23.09      
9 A1 976 934 27.78      
10 A1 819 784 1.34      
11 A1 494 473 6.82      
12 A2 984 942 0.00      
13 A2 820 785 0.00      
14 A2 414 396 0.00      
15 B1 979 937 0.22      
16 B1 867 830 93.33      
17 B1 715 684 26.07      
18 B1 542 519 39.28      
19 B1 437 419 66.09      
20 B1 162 156 0.66      
21 B2 3242 3104 9.51      
22 B2 3213 3076 11.68      
23 B2 1639 1569 0.00      
24 B2 1559 1492 120.78      
25 B2 1414 1353 0.14      
26 B2 1255 1201 8.54      
27 B2 1242 1189 0.66      
28 B2 1072 1026 3.74      
29 B2 594 568 0.85      
30 B2 438 419 4.95      

Unscaled Zero Point Vibrational Energy (zpe) 20551.6 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 19672.0 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 B1B95/CEP-31G*
ABC
0.18754 0.08779 0.05980

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.748
C2 0.000 1.196 -1.065
C3 0.000 1.240 0.314
C4 0.000 0.000 1.127
C5 0.000 -1.240 0.314
C6 0.000 -1.196 -1.065
O7 0.000 0.000 2.370
H8 0.000 2.098 -1.685
H9 0.000 2.202 0.828
H10 0.000 -2.202 0.828
H11 0.000 -2.098 -1.685
H12 0.000 0.000 -2.761

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.37742.40672.87482.40671.37744.11772.09863.38963.38962.09861.0134
C21.37741.38022.49682.79962.39223.63691.09402.14433.89043.35152.0757
C32.40671.38021.48242.48012.79962.40032.17541.09103.48063.89063.3165
C42.87482.49681.48241.48242.49681.24293.50772.22252.22253.50773.8882
C52.40672.79962.48011.48241.38022.40033.89063.48061.09102.17543.3165
C61.37742.39222.79962.49681.38023.63693.35153.89042.14431.09402.0757
O74.11773.63692.40031.24292.40033.63694.56482.68802.68804.56485.1311
H82.09861.09402.17543.50773.89063.35154.56482.51544.98064.19522.3578
H93.38962.14431.09102.22253.48063.89042.68802.51544.40484.98064.2117
H103.38963.89043.48062.22251.09102.14432.68804.98064.40482.51544.2117
H112.09863.35153.89063.50772.17541.09404.56484.19524.98062.51542.3578
H121.01342.07573.31653.88823.31652.07575.13112.35784.21174.21172.3578

picture of 4(1H)-Pryidinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 121.556 N1 C2 H8 115.763
N1 C6 C5 121.556 N1 C6 H11 115.763
C2 N1 C6 120.538 C2 N1 H12 119.731
C2 C3 C4 121.399 C2 C3 H9 119.933
C3 C2 H8 122.681 C3 C4 C5 113.552
C3 C4 O7 123.224 C4 C3 H9 118.668
C4 C5 C6 121.399 C4 C5 H10 118.668
C5 C4 O7 123.224 C5 C6 H11 122.681
C6 N1 H12 119.731 C6 C5 H10 119.933
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.152      
2 C -0.550      
3 C 0.018      
4 C -0.459      
5 C 0.018      
6 C -0.550      
7 O -0.118      
8 H 0.249      
9 H 0.325      
10 H 0.325      
11 H 0.249      
12 H 0.342      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -7.084 7.084
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.632 0.000 0.000
y 0.000 -33.148 0.000
z 0.000 0.000 -40.749
Traceless
 xyz
x -5.683 0.000 0.000
y 0.000 8.542 0.000
z 0.000 0.000 -2.859
Polar
3z2-r2-5.719
x2-y2-9.484
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.280 0.000 0.000
y 0.000 9.254 0.000
z 0.000 0.000 12.825


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