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 C5H8O (Cyclopentanone)

using model chemistry: B3LYPultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-270.673681
Energy at 298.15K-270.683292
HF Energy-270.673681
Nuclear repulsion energy235.506463
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 B3LYPultrafine/cc-pVTZ
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 3099 2996 5.92      
2 A 3086 2983 24.96      
3 A 3030 2929 24.23      
4 A 3022 2922 1.51      
5 A 1818 1757 240.16      
6 A 1513 1462 1.63      
7 A 1454 1405 0.02      
8 A 1342 1298 0.13      
9 A 1308 1265 1.64      
10 A 1222 1182 0.08      
11 A 1174 1135 0.52      
12 A 1031 997 0.53      
13 A 965 932 0.12      
14 A 894 864 0.38      
15 A 809 782 2.01      
16 A 708 684 1.34      
17 A 569 550 5.23      
18 A 229 221 0.11      
19 B 3100 2996 25.25      
20 B 3090 2987 31.81      
21 B 3037 2936 41.72      
22 B 3023 2922 5.73      
23 B 1500 1450 4.34      
24 B 1453 1404 19.32      
25 B 1347 1302 2.63      
26 B 1299 1256 5.00      
27 B 1256 1214 1.29      
28 B 1169 1130 2.25      
29 B 1147 1109 76.69      
30 B 969 936 10.08      
31 B 926 895 0.92      
32 B 842 814 10.63      
33 B 589 570 2.59      
34 B 472 457 4.65      
35 B 452 437 3.40      
36 B 96 93 4.91      

Unscaled Zero Point Vibrational Energy (zpe) 26519.1 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 25636.0 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 B3LYPultrafine/cc-pVTZ
ABC
0.22141 0.11174 0.08013

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.130
C2 0.000 0.000 0.926
C3 0.000 1.239 0.031
C4 0.000 -1.239 0.031
C5 0.294 0.713 -1.378
C6 -0.294 -0.713 -1.378
H7 -1.002 1.677 0.089
H8 1.002 -1.677 0.089
H9 0.696 1.988 0.407
H10 -0.696 -1.988 0.407
H11 -0.123 1.339 -2.166
H12 0.123 -1.339 -2.166
H13 1.374 0.667 -1.540
H14 -1.374 -0.667 -1.540

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20412.43732.43733.59203.59202.82452.82452.72092.72094.50124.50123.97503.9750
C21.20411.52851.52852.42982.42982.12472.12472.16892.16893.37133.37132.90042.9004
C32.43731.52852.47891.53292.42631.09473.08391.08883.32262.20293.38962.16442.8267
C42.43731.52852.47892.42631.53293.08391.09473.32261.08883.38962.20292.82672.1644
C53.59202.42981.53292.42631.54352.18232.89262.22993.38591.08892.20471.09262.1711
C63.59202.42982.42631.53291.54352.89262.18233.38592.22992.20471.08892.17111.0926
H72.82452.12471.09473.08392.18232.89263.90631.75533.69072.44413.93003.05292.8783
H82.82452.12473.08391.09472.89262.18233.90633.69071.75533.93002.44412.87833.0529
H92.72092.16891.08883.32262.22993.38591.75533.69074.21202.77724.24412.44873.8886
H102.72092.16893.32261.08883.38592.22993.69071.75534.21204.24412.77723.88862.4487
H114.50123.37132.20293.38961.08892.20472.44413.93002.77724.24412.68861.75632.4447
H124.50123.37133.38962.20292.20471.08893.93002.44414.24412.77722.68862.44471.7563
H133.97502.90042.16442.82671.09262.17113.05292.87832.44873.88861.75632.44473.0541
H143.97502.90042.82672.16442.17111.09262.87833.05293.88862.44872.44471.75633.0541

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.818 O1 C2 C4 125.818
C2 C3 C5 105.060 C2 C3 H7 107.014
C2 C3 H9 110.804 C2 C4 C6 105.060
C2 C4 H8 107.014 C2 C4 H10 110.804
C3 C2 C4 108.363 C3 C5 C6 104.122
C3 C5 H11 113.232 C3 C5 H13 109.917
C4 C6 C5 104.122 C4 C6 H12 113.232
C4 C6 H14 109.917 C5 C3 H7 111.205
C5 C3 H9 115.498 C5 C6 H12 112.611
C5 C6 H14 109.709 C6 C4 H8 111.205
C6 C4 H10 115.498 C6 C5 H11 112.611
C6 C5 H13 109.709 H7 C3 H9 106.998
H8 C4 H10 106.998 H11 C5 H13 107.236
H12 C6 H14 107.236
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.267      
2 C 0.200      
3 C -0.194      
4 C -0.194      
5 C -0.177      
6 C -0.177      
7 H 0.106      
8 H 0.106      
9 H 0.110      
10 H 0.110      
11 H 0.098      
12 H 0.098      
13 H 0.090      
14 H 0.090      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.047 3.047
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.387 -0.206 0.000
y -0.206 -35.420 0.000
z 0.000 0.000 -44.914
Traceless
 xyz
x 4.780 -0.206 0.000
y -0.206 4.730 0.000
z 0.000 0.000 -9.510
Polar
3z2-r2-19.021
x2-y20.033
xy-0.206
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.148 0.092 0.000
y 0.092 8.930 0.000
z 0.000 0.000 9.520


<r2> (average value of r2) Å2
<r2> 153.166
(<r2>)1/2 12.376