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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B2PLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/6-31G
 hartrees
Energy at 0K-270.096363
Energy at 298.15K-270.106051
HF Energy-269.901218
Nuclear repulsion energy233.247192
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 B2PLYP/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 3141 3141 7.67      
2 A 3134 3134 18.45      
3 A 3072 3072 22.53      
4 A 3065 3065 7.06      
5 A 1709 1709 141.65      
6 A 1568 1568 1.41      
7 A 1521 1521 0.00      
8 A 1384 1384 0.11      
9 A 1350 1350 1.64      
10 A 1261 1261 0.05      
11 A 1206 1206 0.43      
12 A 1066 1066 0.81      
13 A 1014 1014 0.24      
14 A 909 909 0.42      
15 A 836 836 0.17      
16 A 740 740 1.13      
17 A 588 588 4.72      
18 A 219 219 0.04      
19 B 3146 3146 40.81      
20 B 3136 3136 20.82      
21 B 3076 3076 36.09      
22 B 3063 3063 8.70      
23 B 1561 1561 5.48      
24 B 1521 1521 20.97      
25 B 1392 1392 2.52      
26 B 1341 1341 1.41      
27 B 1296 1296 0.35      
28 B 1209 1209 0.45      
29 B 1184 1184 80.51      
30 B 997 997 14.45      
31 B 961 961 2.02      
32 B 869 869 9.41      
33 B 606 606 2.68      
34 B 472 472 2.77      
35 B 455 455 6.57      
36 B 101 101 5.99      

Unscaled Zero Point Vibrational Energy (zpe) 27084.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 27084.0 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 B2PLYP/6-31G
ABC
0.21794 0.10945 0.07848

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.162
C2 0.000 0.000 0.918
C3 0.000 1.250 0.032
C4 0.000 -1.250 0.032
C5 0.288 0.723 -1.391
C6 -0.288 -0.723 -1.391
H7 -0.995 1.713 0.092
H8 0.995 -1.713 0.092
H9 0.720 1.985 0.402
H10 -0.720 -1.985 0.402
H11 -0.152 1.346 -2.174
H12 0.152 -1.346 -2.174
H13 1.371 0.690 -1.567
H14 -1.371 -0.690 -1.567

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.24402.47012.47013.63803.63802.86582.86582.74912.74914.54344.54344.03274.0327
C21.24401.53221.53222.43732.43732.14662.14662.17382.17383.37643.37642.92092.9209
C32.47011.53222.49931.54472.44931.09933.12591.09383.33452.21343.41022.17912.8629
C42.47011.53222.49932.44931.54473.12591.09933.33451.09383.41022.21342.86292.1791
C53.63802.43731.54472.44931.55602.19692.93812.23543.40081.09352.21651.09722.1856
C63.63802.43732.44931.54471.55602.93812.19693.40082.23542.21651.09352.18561.0972
H72.86582.14661.09933.12592.19692.93813.96211.76413.72122.44513.97633.06502.9437
H82.86582.14663.12591.09932.93812.19693.96213.72121.76413.97632.44512.94373.0650
H92.74912.17381.09383.33452.23543.40081.76413.72124.22332.79404.24962.44523.9247
H102.74912.17383.33451.09383.40082.23543.72121.76414.22334.24962.79403.92472.4452
H114.54343.37642.21343.41021.09352.21652.44513.97632.79404.24962.71011.76622.4492
H124.54343.37643.41022.21342.21651.09353.97632.44514.24962.79402.71012.44921.7662
H134.03272.92092.17912.86291.09722.18563.06502.94372.44523.92471.76622.44923.0687
H144.03272.92092.86292.17912.18561.09722.94373.06503.92472.44522.44921.76623.0687

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.354 O1 C2 C4 125.354
C2 C3 C5 104.769 C2 C3 H7 108.196
C2 C3 H9 110.635 C2 C4 C6 104.769
C2 C4 H8 108.196 C2 C4 H10 110.635
C3 C2 C4 109.291 C3 C5 C6 104.351
C3 C5 H11 112.947 C3 C5 H13 109.978
C4 C6 C5 104.351 C4 C6 H12 112.947
C4 C6 H14 109.978 C5 C3 H7 111.265
C5 C3 H9 114.743 C5 C6 H12 112.383
C5 C6 H14 109.712 C6 C4 H8 111.265
C6 C4 H10 114.743 C6 C5 H11 112.383
C6 C5 H13 109.712 H7 C3 H9 107.103
H8 C4 H10 107.103 H11 C5 H13 107.456
H12 C6 H14 107.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.421      
2 C 0.366      
3 C -0.334      
4 C -0.334      
5 C -0.278      
6 C -0.278      
7 H 0.176      
8 H 0.176      
9 H 0.175      
10 H 0.175      
11 H 0.144      
12 H 0.144      
13 H 0.145      
14 H 0.145      


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 -3.185 3.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.465 -0.204 0.000
y -0.204 -35.189 0.000
z 0.000 0.000 -45.695
Traceless
 xyz
x 4.977 -0.204 0.000
y -0.204 5.391 0.000
z 0.000 0.000 -10.368
Polar
3z2-r2-20.736
x2-y2-0.277
xy-0.204
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.254 0.021 0.000
y 0.021 7.517 0.000
z 0.000 0.000 8.470


<r2> (average value of r2) Å2
<r2> 155.795
(<r2>)1/2 12.482