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

using model chemistry: CCD/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-229.554202
Energy at 298.15K 
HF Energy-228.674508
Nuclear repulsion energy142.815852
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 CCD/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCD/aug-cc-pVTZ
ABC
0.34341 0.13451 0.09841

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.489 0.724 0.000
C2 0.000 0.503 0.000
O3 -0.806 1.400 0.000
C4 -0.428 -0.900 0.000
C5 -0.739 -2.062 0.000
H6 1.701 1.789 0.000
H7 1.928 0.250 0.879
H8 1.928 0.250 -0.879
H9 -1.036 -3.083 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 C5 H6 H7 H8 H9
C11.50522.39302.51193.56751.08651.09091.09094.5677
C21.50521.20611.46672.66992.13222.13422.13423.7326
O32.39301.20612.33073.46292.53713.09423.09424.4888
C42.51191.46672.33071.20363.42952.76492.76492.2662
C53.56752.66993.46291.20364.55953.63793.63791.0628
H61.08652.13222.53713.42954.55951.78741.78745.5881
H71.09092.13423.09422.76493.63791.78741.75784.5458
H81.09092.13423.09422.76493.63791.78741.75784.5458
H94.56773.73264.48882.26621.06285.58814.54584.5458

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 123.539 C1 C2 C4 115.382
C2 C1 H6 109.653 C2 C1 H7 109.552
C2 C1 H8 109.552 C2 C4 C5 178.046
O3 C2 C4 121.079 C4 C5 H9 178.813
H6 C1 H7 110.347 H6 C1 H8 110.347
H7 C1 H8 107.353
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability