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All results from a given calculation for C5H8O (Methyl cyclopropyl ketone)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-269.543027
Energy at 298.15K-269.551901
HF Energy-268.834360
Nuclear repulsion energy231.496259
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 CISD/6-31G*
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' 3377 3127 6.65      
2 A' 3302 3057 9.18      
3 A' 3290 3046 8.24      
4 A' 3281 3038 10.27      
5 A' 3166 2931 3.10      
6 A' 1920 1778 137.37      
7 A' 1607 1487 14.63      
8 A' 1566 1450 11.71      
9 A' 1522 1409 104.04      
10 A' 1483 1373 6.46      
11 A' 1301 1205 10.67      
12 A' 1275 1180 79.42      
13 A' 1181 1094 12.95      
14 A' 1152 1067 10.49      
15 A' 1042 965 39.29      
16 A' 986 913 17.27      
17 A' 856 792 1.00      
18 A' 798 738 0.07      
19 A' 623 577 15.74      
20 A' 391 362 4.33      
21 A' 254 235 4.86      
22 A" 3365 3115 0.48      
23 A" 3276 3033 12.81      
24 A" 3235 2995 9.60      
25 A" 1572 1456 10.09      
26 A" 1552 1437 2.69      
27 A" 1286 1191 0.17      
28 A" 1205 1116 1.74      
29 A" 1181 1094 2.53      
30 A" 1127 1043 3.86      
31 A" 962 890 0.77      
32 A" 893 827 5.57      
33 A" 638 591 3.09      
34 A" 277 256 0.62      
35 A" 146 135 0.01      
36 A" 72 67 1.97      

Unscaled Zero Point Vibrational Energy (zpe) 27579.6 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 25533.2 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 CISD/6-31G*
ABC
0.24330 0.08831 0.07728

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.471 -0.555 0.000
C2 -0.278 -0.755 0.000
C3 0.297 -2.148 0.000
C4 0.695 0.372 0.000
C5 0.297 1.624 0.741
C6 0.297 1.624 -0.741
H7 -0.506 -2.878 0.000
H8 0.927 -2.293 -0.878
H9 0.927 -2.293 0.878
H10 1.741 0.104 0.000
H11 -0.659 1.593 1.240
H12 1.077 2.158 1.262
H13 -0.659 1.593 -1.240
H14 1.077 2.158 -1.262

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.20992.38042.35562.90192.90192.51543.08873.08873.27932.60963.92962.60963.9296
C21.20991.50701.48882.55742.55742.13442.14112.14112.19472.68273.45182.68273.4518
C32.38041.50702.55133.84433.84431.08471.08981.08982.67604.05574.55474.05574.5547
C42.35561.48882.55131.50821.50823.46412.81472.81471.08022.20452.22002.20452.2200
C52.90192.55743.84431.50821.48144.63214.28423.96912.22331.07861.07912.19922.2141
C62.90192.55743.84431.50821.48144.63213.96914.28422.22332.19922.21411.07861.0791
H72.51542.13441.08473.46414.63214.63211.77911.77913.73404.64185.42724.64185.4272
H83.08872.14111.08982.81474.28423.96911.77911.75562.67954.70054.94044.21214.4697
H93.08872.14111.08982.81473.96914.28421.77911.75562.67954.21214.46974.70054.9404
H103.27932.19472.67601.08022.22332.22333.73402.67952.67953.08422.50013.08422.5001
H112.60962.68274.05572.20451.07862.19924.64184.70054.21213.08421.82512.47973.0964
H123.92963.45184.55472.22001.07912.21415.42724.94044.46972.50011.82513.09642.5231
H132.60962.68274.05572.20452.19921.07864.64184.21214.70053.08422.47973.09641.8251
H143.92963.45184.55472.22002.21411.07915.42724.46974.94042.50013.09642.52311.8251

picture of Methyl cyclopropyl ketone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 121.981 O1 C2 C4 121.242
C2 C3 H7 109.809 C2 C3 H8 110.042
C2 C3 H9 110.042 C2 C4 C5 117.149
C2 C4 C6 117.149 C2 C4 H10 116.468
C3 C2 C4 116.777 C4 C5 C6 60.586
C4 C5 H11 115.921 C4 C5 H12 117.231
C4 C6 C5 60.586 C4 C6 H13 115.921
C4 C6 H14 117.231 C5 C4 C6 58.827
C5 C4 H10 117.444 C5 C6 H13 117.567
C5 C6 H14 118.861 C6 C4 H10 117.444
C6 C5 H11 117.567 C6 C5 H12 118.861
H7 C3 H8 109.800 H7 C3 H9 109.800
H8 C3 H9 107.312 H11 C5 H12 115.523
H13 C6 H14 115.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability