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

using model chemistry: B3LYPultrafine/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine/6-31+G**
 hartrees
Energy at 0K-229.992239
Energy at 298.15K-229.994981
HF Energy-229.992239
Nuclear repulsion energy142.147076
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 B3LYPultrafine/6-31+G**
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' 3474 3344 54.69      
2 A' 3161 3043 6.42      
3 A' 3045 2931 1.23      
4 A' 2199 2117 51.74      
5 A' 1754 1688 218.54      
6 A' 1466 1411 18.81      
7 A' 1393 1341 37.56      
8 A' 1211 1166 153.52      
9 A' 982 946 31.03      
10 A' 746 718 13.38      
11 A' 643 619 58.07      
12 A' 600 577 10.55      
13 A' 439 422 2.36      
14 A' 176 169 5.06      
15 A" 3109 2993 4.35      
16 A" 1474 1419 11.51      
17 A" 1043 1004 5.43      
18 A" 706 680 44.50      
19 A" 600 577 4.05      
20 A" 248 239 1.54      
21 A" 113 108 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14289.5 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 13756.5 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 B3LYPultrafine/6-31+G**
ABC
0.34000 0.13361 0.09766

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.490 0.753 0.000
C2 0.000 0.494 0.000
O3 -0.833 1.387 0.000
C4 -0.406 -0.907 0.000
C5 -0.731 -2.075 0.000
H6 1.674 1.829 0.000
H7 1.951 0.292 0.882
H8 1.951 0.292 -0.882
H9 -1.037 -3.097 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 H6 H7 H8 H9
C11.51262.40792.52043.59541.09131.09591.09594.6053
C21.51261.22051.45922.67072.14092.15002.15003.7380
O32.40791.22052.33333.46282.54553.11793.11794.4883
C42.52041.45922.33331.21163.43692.78742.78742.2788
C53.59542.67073.46281.21164.58453.68343.68341.0673
H61.09132.14092.54553.43694.58451.79271.79275.6224
H71.09592.15003.11792.78743.68341.79271.76314.6032
H81.09592.15003.11792.78743.68341.79271.76314.6032
H94.60533.73804.48832.27881.06735.62244.60324.6032

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 123.173 C1 C2 C4 115.997
C2 C1 H6 109.545 C2 C1 H7 109.993
C2 C1 H8 109.993 C2 C4 C5 179.389
O3 C2 C4 120.830 C4 C5 H9 178.855
H6 C1 H7 110.092 H6 C1 H8 110.092
H7 C1 H8 107.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.527      
2 C 0.379      
3 O -0.381      
4 C 0.385      
5 C -0.612      
6 H 0.184      
7 H 0.177      
8 H 0.177      
9 H 0.219      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.190 -2.418 0.000 3.262
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.828 5.253 0.000
y 5.253 -26.734 0.000
z 0.000 0.000 -29.488
Traceless
 xyz
x -1.717 5.253 0.000
y 5.253 2.923 0.000
z 0.000 0.000 -1.207
Polar
3z2-r2-2.413
x2-y2-3.093
xy5.253
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.590 0.789 0.000
y 0.789 10.109 0.000
z 0.000 0.000 4.509


<r2> (average value of r2) Å2
<r2> 118.140
(<r2>)1/2 10.869