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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-7761.075828
Energy at 298.15K-7761.085574
Nuclear repulsion energy802.849603
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 B3PW91/6-311G**
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 3202 3084 2.29      
2 A1 540 520 0.42      
3 A1 225 217 0.00      
4 E 1171 1128 38.34      
4 E 1171 1128 38.36      
5 E 650 626 127.42      
5 E 650 626 127.46      
6 E 153 147 0.01      
6 E 153 147 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 3957.5 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 3811.5 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 B3PW91/6-311G**
ABC
0.04078 0.04078 0.02070

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.515
H2 0.000 0.000 1.597
Br3 0.000 1.855 -0.045
Br4 1.606 -0.927 -0.045
Br5 -1.606 -0.927 -0.045

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08281.93711.93711.9371
H21.08282.47712.47712.4771
Br31.93712.47713.21243.2124
Br41.93712.47713.21243.2124
Br51.93712.47713.21243.2124

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 106.779 H2 C1 Br4 106.779
H2 C1 Br5 106.779 Br3 C1 Br4 112.024
Br3 C1 Br5 112.024 Br4 C1 Br5 112.024
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.469      
2 H 0.264      
3 Br 0.068      
4 Br 0.068      
5 Br 0.068      


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 0.985 0.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.316 0.000 0.000
y 0.000 -60.316 0.000
z 0.000 0.000 -59.406
Traceless
 xyz
x -0.455 0.000 0.000
y 0.000 -0.455 0.000
z 0.000 0.000 0.910
Polar
3z2-r21.820
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 10.282 0.000 0.000
y 0.000 10.281 0.000
z 0.000 0.000 5.359


<r2> (average value of r2) Å2
<r2> 403.009
(<r2>)1/2 20.075