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-Pyridinol)

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-323.345621
Energy at 298.15K-323.339319
HF Energy-323.530977
Nuclear repulsion energy274.391852
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' 3813 3679 52.94      
2 A' 3209 3097 4.36      
3 A' 3172 3061 14.71      
4 A' 3156 3045 23.41      
5 A' 3150 3039 19.55      
6 A' 1643 1586 85.98      
7 A' 1627 1570 131.16      
8 A' 1533 1480 35.94      
9 A' 1459 1408 27.34      
10 A' 1383 1335 23.97      
11 A' 1327 1281 7.37      
12 A' 1320 1274 70.52      
13 A' 1243 1200 13.52      
14 A' 1195 1153 116.52      
15 A' 1102 1064 4.59      
16 A' 1077 1039 0.06      
17 A' 1007 972 15.28      
18 A' 850 820 43.17      
19 A' 678 655 0.11      
20 A' 527 508 0.55      
21 A' 408 394 9.50      
22 A" 1000 965 0.13      
23 A" 976 942 0.41      
24 A" 865 834 8.31      
25 A" 834 805 28.76      
26 A" 759 732 0.43      
27 A" 548 529 10.83      
28 A" 423 408 95.20      
29 A" 396 383 12.32      
30 A" 230 222 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 20454.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 19739.0 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
0.20067 0.08800 0.06117

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.022 -1.874 0.000
C2 -1.118 -1.181 0.000
C3 -1.192 0.208 0.000
C4 0.000 0.934 0.000
C5 1.204 0.230 0.000
C6 1.152 -1.157 0.000
O7 0.048 2.287 0.000
H8 -2.036 -1.765 0.000
H9 -2.155 0.711 0.000
H10 2.147 0.764 0.000
H11 2.078 -1.728 0.000
H12 -0.850 2.638 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.33482.41052.80822.41351.33834.16192.06113.37963.38752.06144.5960
C21.33481.39092.39212.71752.27073.65901.08782.15693.80053.24323.8284
C32.41051.39091.39532.39632.71282.42072.14611.08633.38453.80012.4540
C42.80822.39211.39531.39512.38761.35463.38052.16622.15353.37681.9046
C52.41352.71752.39631.39511.38822.36063.80513.39341.08332.14373.1655
C61.33832.27072.71282.38761.38823.61773.24563.79822.16361.08764.2913
O74.16193.65902.42071.35462.36063.61774.55672.70862.59374.49950.9636
H82.06111.08782.14613.38053.80513.24564.55672.47864.88794.11454.5601
H93.37962.15691.08632.16623.39343.79822.70862.47864.30194.88522.3276
H103.38753.80053.38452.15351.08332.16362.59374.88794.30192.49263.5345
H112.06143.24323.80013.37682.14371.08764.49954.11454.88522.49265.2569
H124.59603.82842.45401.90463.16554.29130.96364.56012.32763.53455.2569

picture of 4-Pyridinol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 124.119 N1 C2 H8 116.519
N1 C6 C5 124.312 N1 C6 H11 116.234
C2 N1 C6 116.722 C2 C3 C4 118.321
C2 C3 H9 120.552 C3 C2 H8 119.363
C3 C4 C5 118.337 C3 C4 O7 123.396
C4 C3 H9 121.127 C4 C5 C6 118.190
C4 C5 H10 120.096 C4 O7 H12 109.808
C5 C4 O7 118.267 C5 C6 H11 119.454
C6 C5 H10 121.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability