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All results from a given calculation for CHBr (bromomethylene)

using model chemistry: MP2=FULL/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
2 1 yes CS 3A"

State 1 (1A')

Jump to S2C1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-2608.165557
Energy at 298.15K-2608.168215
HF Energy-2608.046093
Nuclear repulsion energy66.721007
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 MP2=FULL/6-31G
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' 2889 2745 116.54      
2 A' 1168 1110 9.99      
3 A' 565 537 94.46      

Unscaled Zero Point Vibrational Energy (zpe) 2311.2 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 2195.8 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 MP2=FULL/6-31G
ABC
15.22503 0.38018 0.37092

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.026 1.639 0.000
Br2 0.026 -0.334 0.000
H3 -1.076 1.853 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.97281.1229
Br21.97282.4489
H31.12292.4489

picture of bromomethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 100.987
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (3A")

Jump to S1C1
Energy calculated at MP2=FULL/6-31G
 hartrees
Energy at 0K-2608.184041
Energy at 298.15K-2608.186723
HF Energy-2608.085577
Nuclear repulsion energy68.487340
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 MP2=FULL/6-31G
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' 3275 3112 5.78      
2 A' 959 911 2.08      
3 A' 662 629 25.44      

Unscaled Zero Point Vibrational Energy (zpe) 2448.2 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 2326.1 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 MP2=FULL/6-31G
ABC
25.15582 0.39493 0.38882

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 1.563 0.000
Br2 0.021 -0.331 0.000
H3 -0.855 2.205 0.000

Atom - Atom Distances (Å)
  C1 Br2 H3
C11.89441.0858
Br21.89442.6829
H31.08582.6829

picture of bromomethylene state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability