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All results from a given calculation for C5H5NO (2(3H)-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-321.554555
Energy at 298.15K-321.560882
Nuclear repulsion energy272.286844
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 3248 3102 7.87      
2 A 3210 3066 2.90      
3 A 3155 3013 34.84      
4 A 3130 2989 0.11      
5 A 3023 2887 0.64      
6 A 1774 1694 159.33      
7 A 1712 1635 42.90      
8 A 1587 1515 116.55      
9 A 1461 1395 32.09      
10 A 1446 1381 9.66      
11 A 1427 1363 16.41      
12 A 1338 1278 7.76      
13 A 1246 1190 11.35      
14 A 1225 1170 0.47      
15 A 1117 1067 58.74      
16 A 1043 996 1.81      
17 A 1035 989 1.98      
18 A 997 952 2.95      
19 A 969 926 51.87      
20 A 960 916 1.64      
21 A 936 894 4.51      
22 A 754 720 17.34      
23 A 737 704 56.90      
24 A 619 591 1.41      
25 A 576 550 0.27      
26 A 529 505 1.21      
27 A 463 443 2.54      
28 A 445 425 2.61      
29 A 272 260 3.14      
30 A 70 67 2.19      

Unscaled Zero Point Vibrational Energy (zpe) 20253.6 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 19340.1 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
0.17576 0.09354 0.06301

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.347 -1.276 0.164
C2 1.052 -0.042 0.014
C3 0.266 1.249 0.223
C4 -1.197 1.132 -0.080
C5 -1.766 -0.075 -0.170
C6 -0.941 -1.259 0.053
O7 2.251 -0.038 -0.237
H8 0.747 2.032 -0.370
H9 -1.772 2.045 -0.186
H10 -2.822 -0.205 -0.362
H11 -1.457 -2.212 0.147
H12 0.383 1.543 1.279

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.42942.52672.87082.45301.29272.30563.37413.95483.38632.03253.0316
C21.42941.52572.53862.82422.33581.22442.13033.51713.89593.32022.1357
C32.52671.52571.49802.45662.78852.41011.09342.22553.46273.86661.1031
C42.87082.53861.49801.33792.40883.64412.16161.08422.12363.36172.1240
C52.45302.82422.45661.33791.46034.01723.28552.12031.08142.18193.0556
C61.29272.33582.78852.40881.46033.42923.72263.41562.19621.08763.3331
O72.30561.22442.41013.64414.01723.42922.56184.53045.07704.31492.8790
H83.37412.13031.09342.16163.28553.72262.56182.52604.21234.80971.7581
H93.95483.51712.22551.08422.12033.41564.53042.52602.48924.28142.6539
H103.38633.89593.46272.12361.08142.19625.07704.21232.48922.47994.0028
H112.03253.32023.86663.36172.18191.08764.31494.80974.28142.47994.3320
H123.03162.13571.10312.12403.05563.33312.87901.75812.65394.00284.3320

picture of 2(3H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 117.489 N1 C2 O7 120.447
N1 C6 C5 125.903 N1 C6 H11 117.021
C2 N1 C6 118.121 C2 C3 C4 114.184
C2 C3 H8 107.708 C2 C3 H12 107.579
C3 C2 O7 122.032 C3 C4 C5 119.950
C3 C4 H9 118.175 C4 C3 H8 112.111
C4 C3 H12 108.541 C4 C5 C6 118.760
C4 C5 H10 122.392 C5 C4 H9 121.842
C5 C6 H11 117.071 C6 C5 H10 118.800
H8 C3 H12 106.342
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 -0.520      
2 C 0.591      
3 C -0.591      
4 C -0.141      
5 C -0.261      
6 C 0.082      
7 O -0.431      
8 H 0.276      
9 H 0.238      
10 H 0.227      
11 H 0.246      
12 H 0.285      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -4.268 2.379 0.421 4.904
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -43.654 3.263 1.503
y 3.263 -37.733 0.689
z 1.503 0.689 -40.424
Traceless
 xyz
x -4.576 3.263 1.503
y 3.263 4.306 0.689
z 1.503 0.689 0.270
Polar
3z2-r20.539
x2-y2-5.921
xy3.263
xz1.503
yz0.689


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.151 0.568 0.132
y 0.568 8.738 -0.001
z 0.132 -0.001 3.702


<r2> (average value of r2) Å2
<r2> 177.104
(<r2>)1/2 13.308