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

using model chemistry: BLYP/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 BLYP/6-311G**
 hartrees
Energy at 0K-229.968431
Energy at 298.15K-229.971021
HF Energy-229.968431
Nuclear repulsion energy141.527644
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 BLYP/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' 3396 3383 45.86      
2 A' 3063 3051 10.15      
3 A' 2958 2946 1.65      
4 A' 2115 2107 44.94      
5 A' 1665 1658 161.01      
6 A' 1425 1420 18.84      
7 A' 1343 1338 33.50      
8 A' 1161 1156 146.43      
9 A' 942 938 45.64      
10 A' 713 710 11.46      
11 A' 628 626 45.38      
12 A' 579 577 6.23      
13 A' 424 422 2.62      
14 A' 167 166 4.21      
15 A" 3011 2999 8.22      
16 A" 1431 1425 9.82      
17 A" 1011 1007 4.83      
18 A" 687 685 31.85      
19 A" 576 574 2.20      
20 A" 218 218 1.74      
21 A" 102 102 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 13807.3 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 13753.4 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 BLYP/6-311G**
ABC
0.33570 0.13272 0.09684

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.502 0.758 0.000
C2 0.000 0.495 0.000
O3 -0.840 1.387 0.000
C4 -0.400 -0.913 0.000
C5 -0.742 -2.078 0.000
H6 1.683 1.839 0.000
H7 1.968 0.297 0.884
H8 1.968 0.297 -0.884
H9 -1.061 -3.098 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 H6 H7 H8 H9
C11.52482.42522.53163.61651.09591.10081.10084.6302
C21.52481.22551.46392.67792.15352.16692.16693.7466
O32.42521.22552.34243.46672.56303.13973.13974.4909
C42.53161.46392.34241.21403.45122.80262.80262.2828
C53.61652.67793.46671.21404.60673.71083.71081.0688
H61.09592.15352.56303.45124.60671.80001.80005.6482
H71.10082.16693.13972.80263.71081.80001.76884.6355
H81.10082.16693.13972.80263.71081.80001.76884.6355
H94.63023.74664.49092.28281.06885.64824.63554.6355

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 123.346 C1 C2 C4 115.772
C2 C1 H6 109.428 C2 C1 H7 110.187
C2 C1 H8 110.187 C2 C4 C5 179.457
O3 C2 C4 120.882 C4 C5 H9 179.027
H6 C1 H7 110.052 H6 C1 H8 110.052
H7 C1 H8 106.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.295      
2 C 0.094      
3 O -0.234      
4 C 0.036      
5 C -0.114      
6 H 0.129      
7 H 0.130      
8 H 0.130      
9 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.849 -2.137 0.000 2.826
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.492 4.668 0.000
y 4.668 -26.433 0.000
z 0.000 0.000 -29.224
Traceless
 xyz
x -1.663 4.668 0.000
y 4.668 2.925 0.000
z 0.000 0.000 -1.262
Polar
3z2-r2-2.523
x2-y2-3.058
xy4.668
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.194 1.142 0.000
y 1.142 9.720 0.000
z 0.000 0.000 3.943


<r2> (average value of r2) Å2
<r2> 118.826
(<r2>)1/2 10.901