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All results from a given calculation for C5H5NO (3(2H)-Pyridinone)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-323.313042
Energy at 298.15K-323.306311
HF Energy-323.496085
Nuclear repulsion energy271.557257
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 B3LYP/6-31G(2df,p)
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 3197 3085 6.31      
2 A 3168 3057 11.44      
3 A 3116 3007 32.78      
4 A 3048 2941 1.30      
5 A 3025 2919 4.06      
6 A 1774 1712 196.11      
7 A 1711 1651 13.34      
8 A 1635 1578 13.10      
9 A 1422 1373 17.61      
10 A 1408 1359 2.91      
11 A 1387 1339 10.15      
12 A 1321 1274 9.95      
13 A 1246 1203 15.89      
14 A 1232 1189 4.07      
15 A 1150 1110 12.14      
16 A 1037 1001 0.09      
17 A 1018 983 23.75      
18 A 1006 971 1.08      
19 A 980 946 9.12      
20 A 931 898 1.47      
21 A 930 898 7.94      
22 A 792 764 26.67      
23 A 755 729 10.97      
24 A 557 537 6.60      
25 A 545 526 0.06      
26 A 514 496 8.88      
27 A 468 452 3.10      
28 A 442 427 15.05      
29 A 262 253 2.20      
30 A 58 56 10.97      

Unscaled Zero Point Vibrational Energy (zpe) 20067.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19365.0 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 B3LYP/6-31G(2df,p)
ABC
0.17702 0.09206 0.06123

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.206 -1.196 -0.000
C2 0.245 -1.253 0.000
C3 1.065 0.037 0.000
C4 0.291 1.290 0.000
C5 -1.052 1.240 0.000
C6 -1.758 -0.046 -0.000
O7 2.280 0.015 -0.000
H8 0.557 -1.853 -0.866
H9 0.851 2.219 0.000
H10 -1.651 2.147 0.000
H11 -2.849 -0.016 -0.000
H12 0.557 -1.853 0.866

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.45222.58432.90212.44101.27623.69052.07173.98723.37242.02312.0717
C21.45221.52892.54362.81052.33912.39791.09873.52533.89293.33241.0987
C32.58431.52891.47262.43492.82441.21512.13962.19293.43893.91442.1396
C42.90212.54361.47261.34412.44602.36233.27051.08522.12253.40073.2705
C52.44102.81052.43491.34411.46683.54993.59232.14031.08662.19223.5923
C61.27622.33912.82442.44601.46684.03863.06243.45522.19501.09133.0624
O73.69052.39791.21512.36233.54994.03862.68412.62694.47145.12902.6842
H82.07171.09872.13963.27053.59233.06242.68414.17344.64993.96611.7324
H93.98723.52532.19291.08522.14033.45522.62694.17342.50274.32264.1734
H103.37243.89293.43892.12251.08662.19504.47144.64992.50272.47214.6499
H112.02313.33243.91443.40072.19221.09135.12903.96614.32262.47213.9661
H122.07171.09872.13963.27053.59233.06242.68421.73244.17344.64993.9661

picture of 3(2H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 119.924 N1 C2 H8 107.844
N1 C2 H12 107.844 N1 C6 C5 125.362
N1 C6 H11 117.864 C2 N1 C6 118.511
C2 C3 C4 115.709 C2 C3 O7 121.569
C3 C2 H8 107.792 C3 C2 H12 107.792
C3 C4 C5 119.772 C3 C4 H9 116.810
C4 C3 O7 122.722 C4 C5 C6 120.721
C4 C5 H10 121.709 C5 C4 H9 123.418
C5 C6 H11 116.774 C6 C5 H10 117.571
H8 C2 H12 104.634
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability