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: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-323.393784
Energy at 298.15K-323.400216
HF Energy-323.393784
Nuclear repulsion energy271.400628
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 BLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3570 3541 23.31      
2 A' 3134 3109 8.35      
3 A' 3094 3069 21.42      
4 A' 3083 3058 39.75      
5 A' 3075 3051 21.46      
6 A' 1591 1578 66.70      
7 A' 1574 1562 124.20      
8 A' 1492 1480 22.17      
9 A' 1424 1413 22.34      
10 A' 1360 1349 28.23      
11 A' 1299 1288 14.97      
12 A' 1277 1267 53.63      
13 A' 1213 1203 13.66      
14 A' 1176 1167 124.68      
15 A' 1076 1067 5.09      
16 A' 1048 1040 0.10      
17 A' 972 964 14.50      
18 A' 821 814 40.74      
19 A' 662 657 0.11      
20 A' 512 508 0.31      
21 A' 394 391 9.77      
22 A" 944 937 0.07      
23 A" 922 914 0.02      
24 A" 823 816 5.70      
25 A" 787 781 28.44      
26 A" 717 711 0.99      
27 A" 523 519 9.90      
28 A" 424 421 111.15      
29 A" 379 376 4.46      
30 A" 221 219 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 19793.9 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 19633.6 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 BLYP/6-31G*
ABC
0.19651 0.08607 0.05985

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.020 -1.890 0.000
C2 -1.133 -1.194 0.000
C3 -1.206 0.211 0.000
C4 0.000 0.944 0.000
C5 1.218 0.231 0.000
C6 1.165 -1.172 0.000
O7 0.052 2.310 0.000
H8 -2.061 -1.782 0.000
H9 -2.177 0.718 0.000
H10 2.168 0.769 0.000
H11 2.099 -1.747 0.000
H12 -0.854 2.675 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.34682.43212.83402.43541.35174.19972.08343.40953.41812.08414.6473
C21.34681.40712.42042.74982.29873.69951.09752.17843.84143.27953.8792
C32.43211.40711.41162.42452.74472.44742.16801.09513.42033.84162.4890
C42.83402.42041.41161.41202.41541.36663.41712.18842.17553.41311.9296
C52.43542.74982.42451.41201.40312.38393.84723.42981.09202.16483.2043
C61.35172.29872.74472.41541.40313.65493.28303.83902.18441.09714.3439
O74.19973.69952.44741.36662.38393.65494.60492.73912.61774.54400.9768
H82.08341.09752.16803.41713.84723.28304.60492.50234.93864.16004.6169
H93.40952.17841.09512.18843.42983.83902.73912.50234.34534.93542.3620
H103.41813.84143.42032.17551.09202.18442.61774.93864.34532.51683.5730
H112.08413.27953.84163.41312.16481.09714.54404.16004.93542.51685.3171
H124.64733.87922.48901.92963.20434.34390.97684.61692.36203.57305.3171

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 124.040 N1 C2 H8 116.571
N1 C6 C5 124.266 N1 C6 H11 116.271
C2 N1 C6 116.826 C2 C3 C4 118.347
C2 C3 H9 120.547 C3 C2 H8 119.389
C3 C4 C5 118.331 C3 C4 O7 123.501
C4 C3 H9 121.105 C4 C5 C6 118.190
C4 C5 H10 120.101 C4 O7 H12 109.735
C5 C4 O7 118.168 C5 C6 H11 119.464
C6 C5 H10 121.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.384      
2 C 0.038      
3 C -0.161      
4 C 0.354      
5 C -0.128      
6 C 0.034      
7 O -0.588      
8 H 0.116      
9 H 0.096      
10 H 0.116      
11 H 0.117      
12 H 0.391      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.350 2.392 0.000 2.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.365 -4.219 0.000
y -4.219 -42.665 0.000
z 0.000 0.000 -41.975
Traceless
 xyz
x 8.955 -4.219 0.000
y -4.219 -4.995 0.000
z 0.000 0.000 -3.960
Polar
3z2-r2-7.920
x2-y29.300
xy-4.219
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.792 -0.316 0.000
y -0.316 11.306 0.000
z 0.000 0.000 3.366


<r2> (average value of r2) Å2
<r2> 181.886
(<r2>)1/2 13.487