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All results from a given calculation for C4H6O (Cyclobutanone)

using model chemistry: MP2=FULL/6-31G

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=FULL/6-31G
 hartrees
Energy at 0K-230.180635
Energy at 298.15K-230.187443
HF Energy-229.686666
Nuclear repulsion energy164.713684
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=FULL/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 A1 3111 2956 21.53      
2 A1 3091 2936 8.34      
3 A1 1706 1621 135.25      
4 A1 1568 1489 0.13      
5 A1 1529 1453 0.28      
6 A1 1287 1223 7.73      
7 A1 968 919 1.24      
8 A1 849 807 0.92      
9 A1 671 638 0.43      
10 A2 3151 2994 0.00      
11 A2 1254 1191 0.00      
12 A2 989 940 0.00      
13 A2 726 690 0.00      
14 B1 3176 3018 32.54      
15 B1 3144 2988 3.72      
16 B1 1243 1181 0.00      
17 B1 1140 1083 0.41      
18 B1 783 744 4.36      
19 B1 404 384 1.02      
20 B1 60 57 3.90      
21 B2 3087 2933 15.26      
22 B2 1519 1444 17.66      
23 B2 1303 1238 2.78      
24 B2 1248 1186 0.49      
25 B2 1105 1050 101.43      
26 B2 928 881 0.05      
27 B2 455 433 3.44      

Unscaled Zero Point Vibrational Energy (zpe) 20247.7 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 19237.3 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 MP2=FULL/6-31G
ABC
0.35156 0.15475 0.11446

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.919
C2 0.000 0.000 0.673
C3 0.000 1.128 -0.391
C4 0.000 -1.128 -0.391
C5 0.000 0.000 -1.496
H6 0.891 0.000 -2.134
H7 -0.891 0.000 -2.134
H8 -0.892 1.769 -0.363
H9 -0.892 -1.769 -0.363
H10 0.892 1.769 -0.363
H11 0.892 -1.769 -0.363

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
O11.24692.57142.57143.41504.15014.15013.02223.02223.02223.0222
C21.24691.55061.55062.16822.94452.94452.23542.23542.23542.2354
C32.57141.55062.25571.57842.25872.25871.09863.03121.09863.0312
C42.57141.55062.25571.57842.25872.25873.03121.09863.03121.0986
C53.41502.16821.57841.57841.09591.09592.28202.28202.28202.2820
H64.15012.94452.25872.25871.09591.78153.07303.07302.50332.5033
H74.15012.94452.25872.25871.09591.78152.50332.50333.07303.0730
H83.02222.23541.09863.03122.28203.07302.50333.53821.78323.9622
H93.02222.23543.03121.09862.28203.07302.50333.53823.96221.7832
H103.02222.23541.09863.03122.28202.50333.07301.78323.96223.5382
H113.02222.23543.03121.09862.28202.50333.07303.96221.78323.5382

picture of Cyclobutanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 133.332 O1 C2 C4 133.332
C2 C3 C5 87.723 C2 C3 H8 114.002
C2 C3 H10 114.002 C2 C4 C5 87.723
C2 C4 H9 114.002 C2 C4 H11 114.002
C3 C2 C4 93.336 C3 C5 C4 91.217
C3 C5 H6 114.048 C3 C5 H7 114.048
C4 C5 H6 114.048 C4 C5 H7 114.048
C5 C3 H8 115.801 C5 C3 H10 115.801
C5 C4 H9 115.801 C5 C4 H11 115.801
H6 C5 H7 108.745 H8 C3 H10 108.497
H9 C4 H11 108.497
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability