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 CH2BrF (Methane, bromofluoro-)

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-2683.199945
Energy at 298.15K-2683.205324
HF Energy-2683.199945
Nuclear repulsion energy161.078469
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 B3LYP/STO-3G
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' 3218 2872 10.03      
2 A' 1636 1460 0.19      
3 A' 1424 1271 53.70      
4 A' 1204 1075 57.41      
5 A' 693 619 33.19      
6 A' 326 291 1.53      
7 A" 3325 2968 9.78      
8 A" 1296 1156 2.82      
9 A" 980 875 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 7051.1 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 6292.4 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 B3LYP/STO-3G
ABC
1.32129 0.11760 0.11034

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.509 -1.129 0.000
F2 -0.592 -1.981 0.000
Br3 0.000 0.777 0.000
H4 1.138 -1.300 0.909
H5 1.138 -1.300 -0.909

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.39271.97341.11851.1185
F21.39272.82142.07002.0700
Br31.97342.82142.53752.5375
H41.11852.07002.53751.8181
H51.11852.07002.53751.8181

picture of Methane, bromofluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 112.751 F2 C1 H4 110.557
F2 C1 H5 110.557 Br3 C1 H4 107.039
Br3 C1 H5 107.039 H4 C1 H5 108.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.074      
2 F -0.069      
3 Br -0.041      
4 H 0.092      
5 H 0.092      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.016 -1.036 0.000 1.451
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.282 -1.616 0.000
y -1.616 -26.847 0.000
z 0.000 0.000 -26.366
Traceless
 xyz
x 0.325 -1.616 0.000
y -1.616 -0.523 0.000
z 0.000 0.000 0.198
Polar
3z2-r20.397
x2-y20.565
xy-1.616
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.194 -0.298 0.000
y -0.298 3.250 0.000
z 0.000 0.000 0.924


<r2> (average value of r2) Å2
<r2> 93.016
(<r2>)1/2 9.644