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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B3PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/cc-pVDZ
 hartrees
Energy at 0K-270.491514
Energy at 298.15K-270.501133
HF Energy-270.491514
Nuclear repulsion energy235.275364
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 B3PW91/cc-pVDZ
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 3126 3017 4.50      
2 A 3113 3004 20.70      
3 A 3048 2941 23.30      
4 A 3042 2935 4.46      
5 A 1853 1788 229.92      
6 A 1480 1428 1.80      
7 A 1415 1365 0.00      
8 A 1334 1288 0.55      
9 A 1295 1249 0.95      
10 A 1208 1166 0.06      
11 A 1173 1132 0.37      
12 A 1045 1009 0.70      
13 A 952 919 0.14      
14 A 914 882 0.42      
15 A 818 789 1.36      
16 A 709 684 0.57      
17 A 560 541 5.36      
18 A 239 231 0.14      
19 B 3127 3017 18.91      
20 B 3117 3008 27.54      
21 B 3052 2945 38.14      
22 B 3042 2935 5.66      
23 B 1464 1412 5.36      
24 B 1416 1366 21.46      
25 B 1331 1284 4.34      
26 B 1287 1242 12.75      
27 B 1244 1200 7.40      
28 B 1162 1121 65.22      
29 B 1150 1110 7.85      
30 B 980 945 9.84      
31 B 918 886 0.66      
32 B 846 816 11.01      
33 B 584 563 2.89      
34 B 473 456 5.11      
35 B 451 435 2.48      
36 B 105 101 4.70      

Unscaled Zero Point Vibrational Energy (zpe) 26534.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25605.6 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 B3PW91/cc-pVDZ
ABC
0.22152 0.11158 0.08026

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.132
C2 0.000 0.000 0.924
C3 0.000 1.237 0.027
C4 0.000 -1.237 0.027
C5 0.304 0.707 -1.375
C6 -0.304 -0.707 -1.375
H7 -1.017 1.668 0.079
H8 1.017 -1.668 0.079
H9 0.689 2.004 0.411
H10 -0.689 -2.004 0.411
H11 -0.094 1.343 -2.180
H12 0.094 -1.343 -2.180
H13 1.396 0.642 -1.523
H14 -1.396 -0.642 -1.523

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20822.44182.44183.59113.59112.83412.83412.73002.73004.51744.51743.96503.9650
C21.20821.52811.52812.42492.42492.12842.12842.17992.17993.38343.38342.88942.8894
C32.44181.52812.47421.52972.41651.10573.07801.09953.33512.21133.39662.16922.8074
C42.44181.52812.47422.41651.52973.07801.10573.33511.09953.39662.21132.80742.1692
C53.59112.42491.52972.41651.53952.18672.87452.24013.39461.09982.21261.10392.1751
C63.59112.42492.41651.52971.53952.87452.18673.39462.24012.21261.09982.17511.1039
H72.83412.12841.10573.07802.18672.87453.90651.76993.70072.46153.92423.07252.8358
H82.83412.12843.07801.10572.87452.18673.90653.70071.76993.92422.46152.83583.0725
H92.73002.17991.09953.33512.24013.39461.76993.70074.23722.78534.27382.46843.8835
H102.73002.17993.33511.09953.39462.24013.70071.76994.23724.27382.78533.88352.4684
H114.51743.38342.21133.39661.09982.21262.46153.92422.78534.27382.69311.77262.4634
H124.51743.38343.39662.21132.21261.09983.92422.46154.27382.78532.69312.46341.7726
H133.96502.88942.16922.80741.10392.17513.07252.83582.46843.88351.77262.46343.0729
H143.96502.88942.80742.16922.17511.10392.83583.07253.88352.46842.46341.77263.0729

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.949 O1 C2 C4 125.949
C2 C3 C5 104.939 C2 C3 H7 106.721
C2 C3 H9 111.072 C2 C4 C6 104.939
C2 C4 H8 106.721 C2 C4 H10 111.072
C3 C2 C4 108.102 C3 C5 C6 103.875
C3 C5 H11 113.475 C3 C5 H13 109.851
C4 C6 C5 103.875 C4 C6 H12 113.475
C4 C6 H14 109.851 C5 C3 H7 111.132
C5 C3 H9 115.906 C5 C6 H12 112.872
C5 C6 H14 109.645 C6 C4 H8 111.132
C6 C4 H10 115.906 C6 C5 H11 112.872
C6 C5 H13 109.645 H7 C3 H9 106.765
H8 C4 H10 106.765 H11 C5 H13 107.100
H12 C6 H14 107.100
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.215      
2 C 0.041      
3 C -0.047      
4 C -0.047      
5 C -0.074      
6 C -0.074      
7 H 0.070      
8 H 0.070      
9 H 0.057      
10 H 0.057      
11 H 0.036      
12 H 0.036      
13 H 0.045      
14 H 0.045      


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 -2.818 2.818
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.878 -0.243 0.000
y -0.243 -34.797 0.000
z 0.000 0.000 -43.680
Traceless
 xyz
x 4.360 -0.243 0.000
y -0.243 4.482 0.000
z 0.000 0.000 -8.842
Polar
3z2-r2-17.685
x2-y2-0.081
xy-0.243
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.667 0.072 0.000
y 0.072 8.278 0.000
z 0.000 0.000 8.800


<r2> (average value of r2) Å2
<r2> 152.726
(<r2>)1/2 12.358