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All results from a given calculation for CH3COCCH (3-butyn-2-one)

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-229.952158
Energy at 298.15K-229.954990
HF Energy-229.952158
Nuclear repulsion energy142.912744
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 wB97X-D/6-311G**
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' 3480 3329 47.77      
2 A' 3175 3037 7.37      
3 A' 3059 2926 0.86      
4 A' 2231 2134 55.32      
5 A' 1828 1749 210.91      
6 A' 1470 1406 16.86      
7 A' 1401 1340 48.24      
8 A' 1220 1167 154.46      
9 A' 993 950 30.04      
10 A' 749 717 17.29      
11 A' 704 673 40.05      
12 A' 610 584 16.50      
13 A' 446 426 2.18      
14 A' 178 170 4.45      
15 A" 3133 2996 5.36      
16 A" 1470 1406 11.88      
17 A" 1051 1005 7.27      
18 A" 757 724 30.94      
19 A" 607 580 6.11      
20 A" 234 224 2.61      
21 A" 122 116 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14457.8 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 13828.9 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 wB97X-D/6-311G**
ABC
0.34259 0.13504 0.09863

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.491 0.726 0.000
C2 0.000 0.503 0.000
O3 -0.812 1.392 0.000
C4 -0.418 -0.901 0.000
C5 -0.744 -2.056 0.000
H6 1.699 1.795 0.000
H7 1.936 0.254 0.880
H8 1.936 0.254 -0.880
H9 -1.047 -3.076 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 H6 H7 H8 H9
C11.50712.39682.50733.56791.08921.09351.09354.5707
C21.50711.20411.46452.66452.13402.14102.14103.7289
O32.39681.20412.32673.44862.54233.10143.10144.4746
C42.50731.46452.32671.20013.42712.76542.76542.2644
C53.56792.66453.44861.20014.55993.64583.64581.0644
H61.08922.13402.54233.42714.55991.79031.79035.5913
H71.09352.14103.10142.76543.64581.79031.76084.5563
H81.09352.14103.10142.76543.64581.79031.76084.5563
H94.57073.72894.47462.26441.06445.59134.55634.5563

picture of 3-butyn-2-one state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 123.882 C1 C2 C4 115.073
C2 C1 H6 109.509 C2 C1 H7 109.807
C2 C1 H8 109.807 C2 C4 C5 179.216
O3 C2 C4 121.045 C4 C5 H9 179.277
H6 C1 H7 110.219 H6 C1 H8 110.219
H7 C1 H8 107.253
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.348      
2 C 0.161      
3 O -0.263      
4 C 0.020      
5 C -0.152      
6 H 0.152      
7 H 0.149      
8 H 0.149      
9 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.012 -2.209 0.000 2.988
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.080 4.831 0.000
y 4.831 -25.974 0.000
z 0.000 0.000 -28.955
Traceless
 xyz
x -1.615 4.831 0.000
y 4.831 3.043 0.000
z 0.000 0.000 -1.428
Polar
3z2-r2-2.855
x2-y2-3.105
xy4.831
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.743 0.904 0.000
y 0.904 9.055 0.000
z 0.000 0.000 3.842


<r2> (average value of r2) Å2
<r2> 116.705
(<r2>)1/2 10.803