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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B1B95/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 B1B95/cc-pVDZ
 hartrees
Energy at 0K-270.460497
Energy at 298.15K-270.470142
HF Energy-270.460497
Nuclear repulsion energy236.338544
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 B1B95/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 3151 3029 4.37      
2 A 3137 3015 21.11      
3 A 3069 2950 22.54      
4 A 3064 2945 3.20      
5 A 1878 1805 234.89      
6 A 1482 1425 1.67      
7 A 1416 1361 0.00      
8 A 1343 1291 0.61      
9 A 1302 1251 0.87      
10 A 1213 1166 0.06      
11 A 1183 1137 0.38      
12 A 1052 1011 0.77      
13 A 953 916 0.15      
14 A 927 891 0.33      
15 A 827 794 1.23      
16 A 714 687 0.45      
17 A 557 535 5.36      
18 A 245 236 0.14      
19 B 3151 3029 17.08      
20 B 3141 3019 27.71      
21 B 3073 2954 38.40      
22 B 3063 2945 4.87      
23 B 1466 1409 5.58      
24 B 1418 1363 21.57      
25 B 1339 1287 4.49      
26 B 1295 1245 16.64      
27 B 1250 1202 9.30      
28 B 1173 1127 63.72      
29 B 1153 1108 2.65      
30 B 989 950 8.81      
31 B 918 883 0.67      
32 B 851 818 10.43      
33 B 580 557 2.72      
34 B 476 458 6.55      
35 B 450 433 1.90      
36 B 106 102 4.63      

Unscaled Zero Point Vibrational Energy (zpe) 26701.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 25665.4 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 B1B95/cc-pVDZ
ABC
0.22358 0.11260 0.08115

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.123
C2 0.000 0.000 0.919
C3 0.000 1.231 0.025
C4 0.000 -1.231 0.025
C5 0.314 0.699 -1.367
C6 -0.314 -0.699 -1.367
H7 -1.017 1.654 0.067
H8 1.017 -1.654 0.067
H9 0.680 1.999 0.412
H10 -0.680 -1.999 0.412
H11 -0.062 1.337 -2.176
H12 0.062 -1.337 -2.176
H13 1.403 0.614 -1.498
H14 -1.403 -0.614 -1.498

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20462.43292.43293.57323.57322.82842.82842.71832.71834.50234.50233.93203.9320
C21.20461.52151.52152.41052.41052.12042.12042.17182.17183.37133.37132.86142.8614
C32.43291.52152.46281.52292.40031.10243.05961.09613.32402.20393.38272.16102.7740
C42.43291.52152.46282.40031.52293.05961.10243.32401.09613.38272.20392.77402.1610
C53.57322.41051.52292.40031.53192.17672.84342.23353.38081.09652.20501.10082.1652
C63.57322.41052.40031.52291.53192.84342.17673.38082.23352.20501.09652.16521.1008
H72.82842.12041.10243.05962.17672.84343.88331.76623.68482.45763.89073.06412.7822
H82.82842.12043.05961.10242.84342.17673.88333.68481.76623.89072.45762.78223.0641
H92.71832.17181.09613.32402.23353.38081.76623.68484.22352.77174.26692.46773.8493
H102.71832.17183.32401.09613.38082.23353.68481.76624.22354.26692.77173.84932.4677
H114.50233.37132.20393.38271.09652.20502.45763.89072.77174.26692.67701.76872.4625
H124.50233.37133.38272.20392.20501.09653.89072.45764.26692.77172.67702.46251.7687
H133.93202.86142.16102.77401.10082.16523.06412.78222.46773.84931.76872.46253.0633
H143.93202.86142.77402.16102.16521.10082.78223.06413.84932.46772.46251.76873.0633

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.970 O1 C2 C4 125.970
C2 C3 C5 104.702 C2 C3 H7 106.731
C2 C3 H9 111.086 C2 C4 C6 104.702
C2 C4 H8 106.731 C2 C4 H10 111.086
C3 C2 C4 108.059 C3 C5 C6 103.579
C3 C5 H11 113.572 C3 C5 H13 109.863
C4 C6 C5 103.579 C4 C6 H12 113.572
C4 C6 H14 109.863 C5 C3 H7 111.008
C5 C3 H9 116.082 C5 C6 H12 113.005
C5 C6 H14 109.572 C6 C4 H8 111.008
C6 C4 H10 116.082 C6 C5 H11 113.005
C6 C5 H13 109.572 H7 C3 H9 106.908
H8 C4 H10 106.908 H11 C5 H13 107.214
H12 C6 H14 107.214
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.214      
2 C 0.031      
3 C -0.022      
4 C -0.022      
5 C -0.053      
6 C -0.053      
7 H 0.060      
8 H 0.060      
9 H 0.046      
10 H 0.046      
11 H 0.025      
12 H 0.025      
13 H 0.035      
14 H 0.035      


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 -2.820 2.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.890 -0.242 0.000
y -0.242 -34.812 0.000
z 0.000 0.000 -43.614
Traceless
 xyz
x 4.323 -0.242 0.000
y -0.242 4.440 0.000
z 0.000 0.000 -8.763
Polar
3z2-r2-17.525
x2-y2-0.078
xy-0.242
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.645 0.073 0.000
y 0.073 8.211 0.000
z 0.000 0.000 8.735


<r2> (average value of r2) Å2
<r2> 151.422
(<r2>)1/2 12.305