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: TPSSh/aug-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 TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-270.625917
Energy at 298.15K-270.635480
HF Energy-270.625917
Nuclear repulsion energy234.661204
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 TPSSh/aug-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 3111 3009 5.78      
2 A 3093 2992 29.41      
3 A 3034 2935 27.70      
4 A 3026 2927 4.07      
5 A 1784 1726 245.65      
6 A 1505 1456 0.89      
7 A 1446 1398 0.14      
8 A 1331 1287 0.77      
9 A 1292 1250 0.50      
10 A 1211 1171 0.13      
11 A 1161 1123 0.58      
12 A 1032 998 0.78      
13 A 946 915 0.13      
14 A 900 871 0.25      
15 A 808 782 1.85      
16 A 702 679 0.95      
17 A 556 538 5.71      
18 A 226 218 0.16      
19 B 3111 3010 31.45      
20 B 3099 2997 42.72      
21 B 3038 2939 46.37      
22 B 3026 2927 9.33      
23 B 1490 1442 3.50      
24 B 1445 1398 17.08      
25 B 1327 1283 3.26      
26 B 1285 1243 6.84      
27 B 1240 1200 4.23      
28 B 1156 1118 36.87      
29 B 1147 1109 27.94      
30 B 967 936 8.25      
31 B 909 879 0.31      
32 B 835 808 8.99      
33 B 573 555 1.86      
34 B 463 448 6.46      
35 B 441 427 2.26      
36 B 101 98 5.06      

Unscaled Zero Point Vibrational Energy (zpe) 26408.6 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 25545.0 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 TPSSh/aug-cc-pVDZ
ABC
0.22006 0.11102 0.07979

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.139
C2 0.000 0.000 0.923
C3 0.000 1.243 0.029
C4 0.000 -1.243 0.029
C5 0.306 0.710 -1.380
C6 -0.306 -0.710 -1.380
H7 -1.014 1.673 0.077
H8 1.014 -1.673 0.077
H9 0.694 2.001 0.411
H10 -0.694 -2.001 0.411
H11 -0.098 1.344 -2.179
H12 0.098 -1.344 -2.179
H13 1.395 0.644 -1.526
H14 -1.395 -0.644 -1.526

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.21632.44922.44923.60283.60282.84252.84252.73342.73344.52364.52363.97423.9742
C21.21631.53121.53122.42892.42892.13152.13152.17892.17893.38193.38192.89092.8909
C32.44921.53122.48631.53692.42741.10273.08811.09673.33952.21253.40242.17322.8149
C42.44921.53122.48632.42741.53693.08811.10273.33951.09673.40242.21252.81492.1732
C53.60282.42891.53692.42741.54612.18952.88172.24173.39961.09732.21341.10062.1786
C63.60282.42892.42741.53691.54612.88172.18953.39962.24172.21341.09732.17861.1006
H72.84252.13151.10273.08812.18952.88173.91331.77163.70312.45753.92823.07162.8432
H82.84252.13153.08811.10272.88172.18953.91333.70311.77163.92822.45752.84323.0716
H92.73342.17891.09673.33952.24173.39961.77163.70314.23592.78764.27222.46703.8874
H102.73342.17893.33951.09673.39962.24173.70311.77164.23594.27222.78763.88742.4670
H114.52363.38192.21253.40241.09732.21342.45753.92822.78764.27222.69441.77362.4610
H124.52363.38193.40242.21252.21341.09733.92822.45754.27222.78762.69442.46101.7736
H133.97422.89092.17322.81491.10062.17863.07162.84322.46703.88741.77362.46103.0723
H143.97422.89092.81492.17322.17861.10062.84323.07163.88742.46702.46101.77363.0723

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.720 O1 C2 C4 125.720
C2 C3 C5 104.680 C2 C3 H7 106.919
C2 C3 H9 110.939 C2 C4 C6 104.680
C2 C4 H8 106.919 C2 C4 H10 110.939
C3 C2 C4 108.559 C3 C5 C6 103.876
C3 C5 H11 113.203 C3 C5 H13 109.859
C4 C6 C5 103.876 C4 C6 H12 113.203
C4 C6 H14 109.859 C5 C3 H7 111.018
C5 C3 H9 115.675 C5 C6 H12 112.615
C5 C6 H14 109.650 C6 C4 H8 111.018
C6 C4 H10 115.675 C6 C5 H11 112.615
C6 C5 H13 109.650 H7 C3 H9 107.314
H8 C4 H10 107.314 H11 C5 H13 107.599
H12 C6 H14 107.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.626      
2 C 0.247      
3 C 0.381      
4 C 0.381      
5 C 0.658      
6 C 0.658      
7 H -0.133      
8 H -0.133      
9 H -0.198      
10 H -0.198      
11 H -0.213      
12 H -0.213      
13 H -0.306      
14 H -0.306      


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 -3.218 3.218
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.573 0.099 0.000
y 0.099 9.629 0.000
z 0.000 0.000 10.386


<r2> (average value of r2) Å2
<r2> 153.906
(<r2>)1/2 12.406