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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-230.538485
Energy at 298.15K-230.545342
HF Energy-229.811821
Nuclear repulsion energy166.809475
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 MP2/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' 3205 3053 19.67      
2 A' 3181 3030 3.12      
3 A' 3129 2980 19.50      
4 A' 3107 2960 6.37      
5 A' 1858 1770 212.55      
6 A' 1491 1420 0.49      
7 A' 1443 1374 4.02      
8 A' 1235 1177 8.20      
9 A' 1221 1163 0.83      
10 A' 1092 1040 0.18      
11 A' 997 950 1.38      
12 A' 882 840 0.81      
13 A' 734 699 3.35      
14 A' 678 645 2.78      
15 A' 399 380 0.38      
16 A' 116 111 2.41      
17 A" 3186 3035 6.17      
18 A" 3104 2957 11.04      
19 A" 1425 1358 15.97      
20 A" 1272 1211 9.46      
21 A" 1239 1180 4.09      
22 A" 1168 1112 1.86      
23 A" 1091 1039 70.34      
24 A" 948 903 0.80      
25 A" 944 899 0.00      
26 A" 649 618 0.12      
27 A" 461 439 2.81      

Unscaled Zero Point Vibrational Energy (zpe) 20125.5 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 19169.5 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 MP2/cc-pVDZ
ABC
0.35258 0.15960 0.11968

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.264 1.860 0.000
C2 0.000 0.680 0.000
C3 0.158 -0.387 1.106
C4 0.158 -0.387 -1.106
C5 -0.092 -1.456 0.000
H6 -1.138 -1.801 0.000
H7 0.577 -2.328 0.000
H8 1.198 -0.400 1.476
H9 1.198 -0.400 -1.476
H10 -0.532 -0.326 1.963
H11 -0.532 -0.326 -1.963

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.20902.53902.53903.32023.76344.27163.06933.06932.94962.9496
C21.20901.54441.54442.13782.72913.06302.18612.18612.26862.2686
C32.53901.54442.21231.55882.21412.27381.10412.78391.10143.1460
C42.53901.54442.21231.55882.21412.27382.78391.10413.14601.1014
C53.32022.13781.55881.55881.10111.09942.22682.22682.30722.3072
H63.76342.72912.21412.21411.10111.79423.09793.09792.52892.5289
H74.27163.06302.27382.27381.09941.79422.50672.50673.01543.0154
H83.06932.18611.10412.78392.22683.09792.50672.95221.79853.8501
H93.06932.18612.78391.10412.22683.09792.50672.95223.85011.7985
H102.94962.26861.10143.14602.30722.52893.01541.79853.85013.9255
H112.94962.26863.14601.10142.30722.52893.01543.85011.79853.9255

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 134.109 O1 C2 C4 134.109
C2 C3 C5 87.084 C2 C3 H8 110.152
C2 C3 H10 117.069 C2 C4 C5 87.084
C2 C4 H9 110.152 C2 C4 H11 117.069
C3 C2 C4 91.484 C3 C5 C4 90.404
C3 C5 H6 111.533 C3 C5 H7 116.544
C4 C5 H6 111.533 C4 C5 H7 116.544
C5 C3 H8 112.361 C5 C3 H10 119.301
C5 C4 H9 112.361 C5 C4 H11 119.301
H6 C5 H7 109.244 H8 C3 H10 109.265
H9 C4 H11 109.265
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability