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All results from a given calculation for CH3Br (methyl bromide)

using model chemistry: CCSD(T)=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCSD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-2612.351723
Energy at 298.15K 
HF Energy-2612.005088
Nuclear repulsion energy88.365749
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)=FULL/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3076 2987        
2 A1 1318 1280        
3 A1 609 592        
4 E 3192 3101        
4 E 3192 3100        
5 E 1456 1414        
5 E 1455 1413        
6 E 958 931        
6 E 958 931        

Unscaled Zero Point Vibrational Energy (zpe) 8107.1 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 7873.6 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)=FULL/aug-cc-pVDZ
ABC
5.09843 0.31402 0.31402

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.535
Br2 0.000 0.000 0.423
H3 0.000 1.046 -1.869
H4 0.906 -0.523 -1.869
H5 -0.906 -0.523 -1.869

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.95791.09791.09791.0979
Br21.95792.51942.51942.5194
H31.09792.51941.81131.8113
H41.09792.51941.81131.8113
H51.09792.51941.81131.8113

picture of methyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 107.724 Br2 C1 H4 107.724
Br2 C1 H5 107.724 H3 C1 H4 111.160
H3 C1 H5 111.160 H4 C1 H5 111.160
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability