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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-230.188458
Energy at 298.15K-230.195270
HF Energy-229.718796
Nuclear repulsion energy163.529537
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/SDD
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' 3163 3053 42.81      
2 A' 3133 3024 9.13      
3 A' 3082 2975 30.51      
4 A' 3057 2951 9.77      
5 A' 1664 1607 178.22      
6 A' 1532 1479 0.61      
7 A' 1493 1441 2.79      
8 A' 1281 1236 12.25      
9 A' 1227 1184 0.07      
10 A' 1118 1080 0.58      
11 A' 948 915 1.93      
12 A' 867 837 0.75      
13 A' 752 726 7.96      
14 A' 660 637 1.46      
15 A' 399 385 0.37      
16 A' 103 100 3.87      
17 A" 3137 3028 5.30      
18 A" 3054 2948 24.02      
19 A" 1485 1434 23.87      
20 A" 1278 1233 0.41      
21 A" 1235 1192 3.89      
22 A" 1205 1163 1.63      
23 A" 1069 1032 92.28      
24 A" 967 934 1.51      
25 A" 911 879 0.07      
26 A" 720 695 0.05      
27 A" 442 427 3.57      

Unscaled Zero Point Vibrational Energy (zpe) 19989.4 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 19295.8 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/SDD
ABC
0.34415 0.15224 0.11363

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.184 1.923 0.000
C2 0.000 0.682 0.000
C3 0.116 -0.395 1.132
C4 0.116 -0.395 -1.132
C5 -0.076 -1.501 0.000
H6 -1.094 -1.923 0.000
H7 0.662 -2.318 0.000
H8 1.126 -0.403 1.581
H9 1.126 -0.403 -1.581
H10 -0.641 -0.340 1.933
H11 -0.641 -0.340 -1.933

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.25502.59742.59743.42593.95284.32493.10263.10263.01103.0110
C21.25501.56671.56672.18402.82543.07212.22352.22352.27822.2782
C32.59741.56672.26331.59362.25342.29701.10562.89461.10313.1571
C42.59741.56672.26331.59362.25342.29702.89461.10563.15711.1031
C53.42592.18401.59361.59361.10221.10122.26902.26902.32462.3246
H63.95282.82542.25342.25341.10221.80013.12053.12052.53972.5397
H74.32493.07212.29702.29701.10121.80012.52612.52613.05743.0574
H83.10262.22351.10562.89462.26903.12052.52613.16191.80203.9334
H93.10262.22352.89461.10562.26903.12052.52613.16193.93341.8020
H103.01102.27821.10313.15712.32462.53973.05741.80203.93343.8661
H113.01102.27823.15711.10312.32462.53973.05743.93341.80203.8661

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.709 O1 C2 C4 133.709
C2 C3 C5 87.431 C2 C3 H8 111.456
C2 C3 H10 116.064 C2 C4 C5 87.431
C2 C4 H9 111.456 C2 C4 H11 116.064
C3 C2 C4 92.495 C3 C5 C4 90.494
C3 C5 H6 112.134 C3 C5 H7 115.738
C4 C5 H6 112.134 C4 C5 H7 115.738
C5 C3 H8 113.175 C5 C3 H10 117.946
C5 C4 H9 113.175 C5 C4 H11 117.946
H6 C5 H7 109.563 H8 C3 H10 109.349
H9 C4 H11 109.349
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability