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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: B1B95/TZVP

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/TZVP
 hartrees
Energy at 0K-270.534656
Energy at 298.15K-270.544326
HF Energy-270.534656
Nuclear repulsion energy236.940724
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/TZVP
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 3145 3009 5.36      
2 A 3132 2997 22.14      
3 A 3068 2936 23.60      
4 A 3061 2930 0.95      
5 A 1856 1776 266.69      
6 A 1512 1447 2.10      
7 A 1451 1388 0.04      
8 A 1351 1293 0.03      
9 A 1316 1259 2.80      
10 A 1226 1173 0.16      
11 A 1188 1137 0.28      
12 A 1054 1009 0.91      
13 A 964 923 0.34      
14 A 922 882 0.54      
15 A 825 789 1.42      
16 A 718 687 0.90      
17 A 565 540 5.76      
18 A 237 227 0.17      
19 B 3146 3010 20.04      
20 B 3136 3001 29.04      
21 B 3074 2942 39.07      
22 B 3062 2930 3.97      
23 B 1498 1434 6.25      
24 B 1451 1388 22.52      
25 B 1351 1293 1.80      
26 B 1306 1250 11.20      
27 B 1264 1210 3.94      
28 B 1176 1125 41.87      
29 B 1169 1118 31.59      
30 B 989 946 10.99      
31 B 929 889 0.70      
32 B 853 816 11.41      
33 B 583 557 2.58      
34 B 481 460 6.68      
35 B 452 432 2.04      
36 B 108 103 5.39      

Unscaled Zero Point Vibrational Energy (zpe) 26808.0 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 25652.6 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 B1B95/TZVP
ABC
0.22435 0.11315 0.08143

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.117
C2 0.000 0.000 0.917
C3 0.000 1.231 0.027
C4 0.000 -1.231 0.027
C5 0.311 0.700 -1.366
C6 -0.311 -0.700 -1.366
H7 -1.007 1.654 0.069
H8 1.007 -1.654 0.069
H9 0.682 1.987 0.409
H10 -0.682 -1.987 0.409
H11 -0.072 1.332 -2.164
H12 0.072 -1.332 -2.164
H13 1.391 0.621 -1.501
H14 -1.391 -0.621 -1.501

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20082.42602.42603.56643.56642.81872.81872.70742.70744.48424.48423.92633.9263
C21.20081.51871.51872.40742.40742.11382.11382.16082.16083.35683.35682.85782.8578
C32.42601.51872.46141.52242.40061.09363.05581.08753.31092.19403.37232.15432.7748
C42.42601.51872.46142.40061.52243.05581.09363.31091.08753.37232.19402.77482.1543
C53.56642.40741.52242.40061.53132.16962.84342.22363.36941.08772.19621.09162.1584
C63.56642.40742.40061.52241.53132.84342.16963.36942.22362.19621.08772.15841.0916
H72.81872.11381.09363.05582.16962.84343.87321.75513.67082.44223.88193.04722.7911
H82.81872.11383.05581.09362.84342.16963.87323.67081.75513.88192.44222.79113.0472
H92.70742.16081.08753.31092.22363.36941.75513.67084.20082.75974.24352.45293.8403
H102.70742.16083.31091.08753.36942.22363.67081.75514.20084.24352.75973.84032.4529
H114.48423.35682.19403.37231.08772.19622.44223.88192.75974.24352.66871.75632.4485
H124.48423.35683.37232.19402.19621.08773.88192.44224.24352.75972.66872.44851.7563
H133.92632.85782.15432.77481.09162.15843.04722.79112.45293.84031.75632.44853.0467
H143.92632.85782.77482.15432.15841.09162.79113.04723.84032.45292.44851.75633.0467

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.867 O1 C2 C4 125.867
C2 C3 C5 104.677 C2 C3 H7 106.908
C2 C3 H9 110.931 C2 C4 C6 104.677
C2 C4 H8 106.908 C2 C4 H10 110.931
C3 C2 C4 108.266 C3 C5 C6 103.646
C3 C5 H11 113.351 C3 C5 H13 109.913
C4 C6 C5 103.646 C4 C6 H12 113.351
C4 C6 H14 109.913 C5 C3 H7 111.008
C5 C3 H9 115.852 C5 C6 H12 112.881
C5 C6 H14 109.616 C6 C4 H8 111.008
C6 C4 H10 115.852 C6 C5 H11 112.881
C6 C5 H13 109.616 H7 C3 H9 107.162
H8 C4 H10 107.162 H11 C5 H13 107.397
H12 C6 H14 107.397
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.261      
2 C 0.131      
3 C -0.267      
4 C -0.267      
5 C -0.268      
6 C -0.268      
7 H 0.159      
8 H 0.159      
9 H 0.158      
10 H 0.158      
11 H 0.143      
12 H 0.143      
13 H 0.141      
14 H 0.141      


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 -3.180 3.180
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.059 -0.208 0.000
y -0.208 -34.886 0.000
z 0.000 0.000 -44.835
Traceless
 xyz
x 4.801 -0.208 0.000
y -0.208 5.061 0.000
z 0.000 0.000 -9.862
Polar
3z2-r2-19.725
x2-y2-0.174
xy-0.208
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.042 0.066 0.000
y 0.066 8.677 0.000
z 0.000 0.000 9.410


<r2> (average value of r2) Å2
<r2> 151.151
(<r2>)1/2 12.294