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All results from a given calculation for C5H8O (Cyclopentanone)

using model chemistry: MP4/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 MP4/cc-pVDZ
 hartrees
Energy at 0K-269.840776
Energy at 298.15K-269.850378
HF Energy-268.881541
Nuclear repulsion energy233.603809
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 MP4/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 3134 3031        
2 A 3122 3018        
3 A 3054 2953        
4 A 3050 2949        
5 A 1775 1717        
6 A 1495 1446        
7 A 1438 1390        
8 A 1342 1298        
9 A 1300 1257        
10 A 1219 1179        
11 A 1174 1135        
12 A 1041 1007        
13 A 957 925        
14 A 912 882        
15 A 817 790        
16 A 709 685        
17 A 551 533        
18 A 256 248        
19 B 3135 3031        
20 B 3126 3022        
21 B 3056 2955        
22 B 3050 2949        
23 B 1481 1432        
24 B 1439 1391        
25 B 1335 1291        
26 B 1296 1253        
27 B 1246 1205        
28 B 1163 1124        
29 B 1148 1110        
30 B 974 942        
31 B 916 885        
32 B 850 822        
33 B 574 555        
34 B 462 447        
35 B 443 428        
36 B 96 93        

Unscaled Zero Point Vibrational Energy (zpe) 26565.5 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 25686.2 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 MP4/cc-pVDZ
ABC
0.21825 0.10989 0.07926

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 2.152
C2 0.000 0.000 0.930
C3 0.000 1.249 0.022
C4 0.000 -1.249 0.022
C5 0.325 0.703 -1.382
C6 -0.325 -0.703 -1.382
H7 -1.025 1.673 0.052
H8 1.025 -1.673 0.052
H9 0.690 2.019 0.409
H10 -0.690 -2.019 0.409
H11 -0.043 1.348 -2.200
H12 0.043 -1.348 -2.200
H13 1.422 0.602 -1.501
H14 -1.422 -0.602 -1.501

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.22182.46862.46863.61743.61742.87442.87442.75502.75504.55574.55573.96613.9661
C21.22181.54371.54372.43812.43812.15012.15012.19632.19633.40793.40792.88042.8804
C32.46861.54372.49741.54082.42641.11003.09691.10413.36192.22473.41792.18222.7875
C42.46861.54372.49742.42641.54083.09691.11003.36191.10413.41792.22472.78752.1822
C53.61742.43811.54082.42641.54952.19482.86262.25173.41281.10452.22641.10892.1844
C63.61742.43812.42641.54081.54952.86262.19483.41282.25172.22641.10452.18441.1089
H72.87442.15011.11003.09692.19482.86263.92491.78583.72462.47763.91643.09012.7835
H82.87442.15013.09691.11002.86262.19483.92493.72461.78583.91642.47762.78353.0901
H92.75502.19631.10413.36192.25173.41281.78583.72464.26712.79164.30802.48823.8706
H102.75502.19633.36191.10413.41282.25173.72461.78584.26714.30802.79163.87062.4882
H114.55573.40792.22473.41791.10452.22642.47763.91642.79164.30802.69731.78662.4888
H124.55573.40793.41792.22472.22641.10453.91642.47764.30802.79162.69732.48881.7866
H133.96612.88042.18222.78751.10892.18443.09012.78352.48823.87061.78662.48883.0894
H143.96612.88042.78752.18222.18441.10892.78353.09013.87062.48822.48881.78663.0894

picture of Cyclopentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 126.014 O1 C2 C4 126.014
C2 C3 C5 104.450 C2 C3 H7 107.100
C2 C3 H9 110.997 C2 C4 C6 104.450
C2 C4 H8 107.100 C2 C4 H10 110.997
C3 C2 C4 107.972 C3 C5 C6 103.473
C3 C5 H11 113.465 C3 C5 H13 109.820
C4 C6 C5 103.473 C4 C6 H12 113.465
C4 C6 H14 109.820 C5 C3 H7 110.739
C5 C3 H9 115.732 C5 C6 H12 112.973
C5 C6 H14 109.396 C6 C4 H8 110.739
C6 C4 H10 115.732 C6 C5 H11 112.973
C6 C5 H13 109.396 H7 C3 H9 107.528
H8 C4 H10 107.528 H11 C5 H13 107.646
H12 C6 H14 107.646
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability