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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: CCD/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 CCD/TZVP
 hartrees
Energy at 0K-269.906424
Energy at 298.15K-269.916134
HF Energy-268.952939
Nuclear repulsion energy235.854524
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 CCD/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 3158 2994 5.27      
2 A 3143 2980 22.76      
3 A 3081 2920 18.83      
4 A 3078 2918 4.69      
5 A 1877 1779 203.24      
6 A 1538 1458 0.89      
7 A 1486 1409 0.13      
8 A 1387 1315 0.14      
9 A 1349 1279 0.79      
10 A 1252 1187 0.00      
11 A 1207 1144 0.65      
12 A 1061 1006 0.61      
13 A 989 937 0.10      
14 A 922 874 0.33      
15 A 840 796 1.08      
16 A 732 694 0.85      
17 A 573 544 4.00      
18 A 242 229 0.10      
19 B 3160 2995 30.18      
20 B 3148 2984 32.44      
21 B 3084 2924 38.81      
22 B 3078 2918 9.62      
23 B 1521 1442 4.07      
24 B 1487 1410 15.27      
25 B 1381 1309 1.19      
26 B 1337 1267 11.27      
27 B 1282 1215 1.93      
28 B 1199 1137 43.76      
29 B 1186 1124 13.75      
30 B 993 941 9.67      
31 B 948 899 0.42      
32 B 868 823 6.72      
33 B 591 560 1.80      
34 B 484 459 7.81      
35 B 456 433 2.72      
36 B 91 86 4.75      

Unscaled Zero Point Vibrational Energy (zpe) 27103.7 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 25694.3 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 CCD/TZVP
ABC
0.22152 0.11232 0.08067

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.124
C2 0.000 0.000 0.920
C3 0.000 1.240 0.029
C4 0.000 -1.240 0.029
C5 0.311 0.704 -1.372
C6 -0.311 -0.704 -1.372
H7 -1.006 1.672 0.068
H8 1.006 -1.672 0.068
H9 0.698 1.987 0.408
H10 -0.698 -1.987 0.408
H11 -0.078 1.337 -2.170
H12 0.078 -1.337 -2.170
H13 1.394 0.625 -1.508
H14 -1.394 -0.625 -1.508

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20382.43462.43463.58013.58012.83432.83432.71692.71694.49804.49803.94063.9406
C21.20381.52731.52732.41832.41832.12902.12902.16742.16743.36793.36792.86922.8692
C32.43461.52732.48101.53242.41731.09503.08141.08973.32352.20273.38912.16462.7908
C42.43461.52732.48102.41731.53243.08141.09503.32351.08973.38912.20272.79082.1646
C53.58012.41831.53242.41731.54042.17842.86422.22743.38071.09012.20421.09402.1668
C63.58012.41832.41731.53241.54042.86422.17843.38072.22742.20421.09012.16681.0940
H72.83432.12901.09503.08142.17842.86423.90211.76543.68732.44593.90363.05602.8132
H82.83432.12903.08141.09502.86422.17843.90213.68731.76543.90362.44592.81323.0560
H92.71692.16741.08973.32352.22743.38071.76543.68734.21182.76904.25152.45113.8562
H102.71692.16743.32351.08973.38072.22743.68731.76544.21184.25152.76903.85622.4511
H114.49803.36792.20273.38911.09012.20422.44593.90362.76904.25152.67861.76382.4537
H124.49803.36793.38912.20272.20421.09013.90362.44594.25152.76902.67862.45371.7638
H133.94062.86922.16462.79081.09402.16683.05602.81322.45113.85621.76382.45373.0557
H143.94062.86922.79082.16462.16681.09402.81323.05603.85622.45112.45371.76383.0557

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 125.688 O1 C2 C4 125.688
C2 C3 C5 104.441 C2 C3 H7 107.414
C2 C3 H9 110.724 C2 C4 C6 104.441
C2 C4 H8 107.414 C2 C4 H10 110.724
C3 C2 C4 108.623 C3 C5 C6 103.755
C3 C5 H11 113.183 C3 C5 H13 109.888
C4 C6 C5 103.755 C4 C6 H12 113.183
C4 C6 H14 109.888 C5 C3 H7 110.921
C5 C3 H9 115.265 C5 C6 H12 112.729
C5 C6 H14 109.514 C6 C4 H8 110.921
C6 C4 H10 115.265 C6 C5 H11 112.729
C6 C5 H13 109.514 H7 C3 H9 107.821
H8 C4 H10 107.821 H11 C5 H13 107.720
H12 C6 H14 107.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability