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 CHBrCl2 (Methane, bromodichloro-)

using model chemistry: CCSD(T)/TZVP

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(T)/TZVP
 hartrees
Energy at 0K-3530.563069
Energy at 298.15K 
HF Energy-3529.860718
Nuclear repulsion energy391.780029
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(T)/TZVP
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' 3212 3092        
2 A' 1211 1165        
3 A' 738 710        
4 A' 605 582        
5 A' 332 319        
6 A' 222 214        
7 A" 1267 1220        
8 A" 783 754        
9 A" 216 208        

Unscaled Zero Point Vibrational Energy (zpe) 4292.7 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 4131.8 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 CCSD(T)/TZVP
ABC
0.10724 0.05965 0.03937

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.673 -0.141 0.000
H2 -1.578 0.451 0.000
Br3 0.814 1.123 0.000
Cl4 -0.673 -1.144 1.471
Cl5 -0.673 -1.144 -1.471

Atom - Atom Distances (Å)
  C1 H2 Br3 Cl4 Cl5
C11.08211.95141.78031.7803
H21.08212.48492.35102.3510
Br31.95142.48493.08413.0841
Cl41.78032.35103.08412.9425
Cl51.78032.35103.08412.9425

picture of Methane, bromodichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.447 H2 C1 Cl4 107.947
H2 C1 Cl5 107.947 Br3 C1 Cl4 111.392
Br3 C1 Cl5 111.392 Cl4 C1 Cl5 111.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability