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All results from a given calculation for C5H5NO (2(1H)-Pyridinone)

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-319.770807
Energy at 298.15K-319.778068
Nuclear repulsion energy276.924548
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 HF/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' 3789 3432 90.52      
2 A' 3422 3099 3.83      
3 A' 3416 3094 3.65      
4 A' 3392 3072 1.86      
5 A' 3365 3047 9.57      
6 A' 1903 1724 611.60      
7 A' 1823 1651 68.81      
8 A' 1724 1561 71.72      
9 A' 1618 1465 1.47      
10 A' 1581 1432 25.74      
11 A' 1544 1398 5.20      
12 A' 1368 1238 23.04      
13 A' 1346 1219 11.28      
14 A' 1278 1157 24.77      
15 A' 1191 1079 34.59      
16 A' 1109 1005 16.59      
17 A' 1050 951 4.62      
18 A' 868 786 10.68      
19 A' 681 617 0.15      
20 A' 604 547 9.75      
21 A' 492 446 8.21      
22 A" 1201 1088 5.92      
23 A" 1158 1049 2.75      
24 A" 1014 918 95.17      
25 A" 925 837 126.22      
26 A" 883 799 12.56      
27 A" 793 718 74.37      
28 A" 580 525 49.74      
29 A" 438 396 0.62      
30 A" 212 192 4.16      

Unscaled Zero Point Vibrational Energy (zpe) 22383.6 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 20270.6 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 HF/3-21G
ABC
0.19128 0.09412 0.06308

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.132 0.251 0.000
C2 0.000 1.056 0.000
C3 1.241 0.302 0.000
C4 1.253 -1.037 0.000
C5 0.034 -1.795 0.000
C6 -1.119 -1.116 0.000
O7 -0.103 2.273 0.000
H8 2.139 0.882 0.000
H9 2.187 -1.564 0.000
H10 0.046 -2.863 0.000
H11 -2.076 -1.595 0.000
H12 -2.003 0.743 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 C6 O7 H8 H9 H10 H11 H12
N11.38972.37452.71122.35451.36652.26923.33163.78333.32892.07260.9999
C21.38971.45242.43982.85102.44341.22092.14583.41313.91903.36702.0270
C32.37451.45241.33952.41992.75402.38511.06852.09243.38313.82153.2739
C42.71122.43981.33951.43572.37413.57682.11391.07222.18853.37573.7110
C52.35452.85102.41991.43571.33834.06973.40552.16561.06802.11923.2539
C61.36652.44342.75402.37411.33833.53783.82213.33692.10011.06972.0581
O72.26921.22092.38513.57684.06973.53782.63754.46815.13754.34182.4393
H83.33162.14581.06852.11393.40553.82212.63752.44704.29004.88884.1438
H93.78333.41312.09241.07222.16563.33694.46812.44702.50394.26324.7831
H103.32893.91903.38312.18851.06802.10015.13754.29002.50392.47214.1472
H112.07263.36703.82153.37572.11921.06974.34184.88884.26322.47212.3390
H120.99992.02703.27393.71103.25392.05812.43934.14384.78314.14722.3390

picture of 2(1H)-Pyridinone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 113.314 N1 C2 O7 120.600
N1 C6 C5 121.031 N1 C6 H11 116.055
C2 N1 C6 124.875 C2 N1 H12 115.074
C2 C3 C4 121.775 C2 C3 H8 115.853
C3 C2 O7 126.085 C3 C4 C5 121.338
C3 C4 H9 119.947 C4 C3 H8 122.372
C4 C5 C6 117.667 C4 C5 H10 121.182
C5 C4 H9 118.715 C5 C6 H11 122.913
C6 N1 H12 120.051 C6 C5 H10 121.151
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.998      
2 C 0.894      
3 C -0.374      
4 C -0.152      
5 C -0.391      
6 C 0.234      
7 O -0.656      
8 H 0.270      
9 H 0.261      
10 H 0.250      
11 H 0.279      
12 H 0.384      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.285 -4.456 0.000 4.637
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.892 0.063 0.000
y 0.063 -47.700 0.000
z 0.000 0.000 -43.700
Traceless
 xyz
x 14.808 0.063 0.000
y 0.063 -10.405 0.000
z 0.000 0.000 -4.403
Polar
3z2-r2-8.807
x2-y216.808
xy0.063
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.529 -0.059 0.000
y -0.059 10.649 0.000
z 0.000 0.000 2.229


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