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All results from a given calculation for CHBr3 (bromoform)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-7754.317927
Energy at 298.15K-7754.327544
Nuclear repulsion energy800.365276
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 BLYP/6-31G(2df,p)
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 3107 3090 2.13      
2 A1 518 515 0.70      
3 A1 215 214 0.00      
4 E 1124 1118 28.84      
4 E 1124 1118 28.80      
5 E 592 589 115.09      
5 E 592 589 114.97      
6 E 147 147 0.03      
6 E 147 147 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 3783.6 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 3762.8 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 BLYP/6-31G(2df,p)
ABC
0.04056 0.04056 0.02060

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.534
H2 0.000 0.000 1.623
Br3 0.000 1.859 -0.046
Br4 1.610 -0.929 -0.046
Br5 -1.610 -0.929 -0.046

Atom - Atom Distances (Å)
  C1 H2 Br3 Br4 Br5
C11.08981.94721.94721.9472
H21.08982.49842.49842.4984
Br31.94722.49843.21983.2198
Br41.94722.49843.21983.2198
Br51.94722.49843.21983.2198

picture of bromoform state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 107.314 H2 C1 Br4 107.314
H2 C1 Br5 107.314 Br3 C1 Br4 111.539
Br3 C1 Br5 111.539 Br4 C1 Br5 111.539
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.451      
2 H 0.192      
3 Br 0.086      
4 Br 0.086      
5 Br 0.086      


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 0.841 0.841
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -59.931 0.000 0.000
y 0.000 -59.931 0.000
z 0.000 0.000 -58.522
Traceless
 xyz
x -0.705 0.000 0.000
y 0.000 -0.705 0.000
z 0.000 0.000 1.409
Polar
3z2-r22.818
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 12.178 0.000 0.000
y 0.000 12.176 -0.001
z 0.000 -0.001 7.664


<r2> (average value of r2) Å2
<r2> 404.543
(<r2>)1/2 20.113