return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2ClCCCl (1,3-dichloropropyne)

using model chemistry: CCSD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/6-311+G(3df,2p)
 hartrees
Energy at 0K-1034.627440
Energy at 298.15K 
HF Energy-1033.749170
Nuclear repulsion energy216.926857
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 CCSD/6-311+G(3df,2p)
Rotational Constants (cm-1) from geometry optimized at CCSD/6-311+G(3df,2p)
ABC
0.55202 0.03199 0.03041

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.165 0.222 0.000
C2 0.000 0.515 0.000
C3 -1.411 0.880 0.000
Cl4 2.755 -0.183 0.000
Cl5 -2.473 -0.559 0.000
H6 -1.659 1.459 0.886
H7 -1.659 1.459 -0.886

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 Cl5 H6 H7
C11.20172.65891.64093.72153.20883.2088
C21.20171.45732.84262.69682.10482.1048
C32.65891.45734.29991.78931.08721.0872
Cl41.64092.84264.29995.24244.79324.7932
Cl53.72152.69681.78935.24242.35002.3500
H63.20882.10481.08724.79322.35001.7719
H73.20882.10481.08724.79322.35001.7719

picture of 1,3-dichloropropyne state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.643 C2 C1 Cl4 179.864
C2 C3 Cl5 111.928 C2 C3 H6 110.785
C2 C3 H7 110.785 Cl5 C3 H6 107.017
Cl5 C3 H7 107.017 H6 C3 H7 109.148
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability