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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-46.343887
Energy at 298.15K-46.353527
Nuclear repulsion energy51.904422
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/CEP-121G
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 3168 3087 0.64      
2 A1 507 494 0.62      
3 A1 212 206 0.01      
4 E 1163 1134 48.94      
4 E 1163 1134 48.94      
5 E 608 592 161.46      
5 E 608 592 161.41      
6 E 145 142 0.03      
6 E 145 142 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 3859.7 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 3761.3 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/CEP-121G
ABC
0.03810 0.03810 0.01933

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.531
H2 0.000 0.000 1.618
Br3 0.000 1.919 -0.046
Br4 1.662 -0.960 -0.046
Br5 -1.662 -0.960 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08712.00402.00402.0040
H21.08712.54032.54032.5403
Br32.00402.54033.32403.3240
Br42.00402.54033.32403.3240
Br52.00402.54033.32403.3240

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.737 H2 C1 Br4 106.737
H2 C1 Br5 106.737 Br3 C1 Br4 112.061
Br3 C1 Br5 112.061 Br4 C1 Br5 112.061
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.811      
2 H 0.288      
3 Br 0.174      
4 Br 0.174      
5 Br 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.218 1.218
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -51.427 0.000 0.000
y 0.000 -51.427 0.000
z 0.000 0.000 -49.736
Traceless
 xyz
x -0.846 0.000 0.000
y 0.000 -0.846 0.000
z 0.000 0.000 1.691
Polar
3z2-r23.382
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.772 0.000 0.000
y 0.000 9.774 -0.000
z 0.000 -0.000 3.310


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000