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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: HF/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 HF/cc-pVDZ
 hartrees
Energy at 0K-7755.580040
Energy at 298.15K-7755.589972
Nuclear repulsion energy806.301413
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 HF/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 3380 3069 3.06      
2 A1 572 520 1.57      
3 A1 241 219 0.02      
4 E 1278 1161 44.82      
4 E 1278 1161 44.82      
5 E 737 670 97.37      
5 E 737 670 97.37      
6 E 167 152 0.01      
6 E 167 152 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 4279.4 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 3885.7 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 HF/cc-pVDZ
ABC
0.04115 0.04115 0.02089

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.520
H2 0.000 0.000 1.600
Br3 0.000 1.846 -0.045
Br4 1.599 -0.923 -0.045
Br5 -1.599 -0.923 -0.045

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.07921.93071.93071.9307
H21.07922.47242.47242.4724
Br31.93072.47243.19753.1975
Br41.93072.47243.19753.1975
Br51.93072.47243.19753.1975

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.028 H2 C1 Br4 107.028
H2 C1 Br5 107.028 Br3 C1 Br4 111.800
Br3 C1 Br5 111.800 Br4 C1 Br5 111.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.247      
2 H 0.167      
3 Br 0.027      
4 Br 0.027      
5 Br 0.027      


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 1.056 1.056
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -60.923 0.000 0.000
y 0.000 -60.923 0.000
z 0.000 0.000 -59.656
Traceless
 xyz
x -0.634 0.000 0.000
y 0.000 -0.634 0.000
z 0.000 0.000 1.267
Polar
3z2-r22.534
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 9.456 0.000 0.000
y 0.000 9.456 0.000
z 0.000 0.000 5.092


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