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 CH3CBr3 (1,1,1-tribromoethane)

using model chemistry: wB97X-D/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/aug-cc-pVTZ
 hartrees
Energy at 0K-7800.796772
Energy at 298.15K-7800.808577
HF Energy-7800.796772
Nuclear repulsion energy979.913739
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 wB97X-D/aug-cc-pVTZ
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 3072 2938 2.66      
2 A1 1420 1358 8.74      
3 A1 1064 1018 5.31      
4 A1 423 405 3.79      
5 A1 222 212 0.02      
6 A2 318 304 0.00      
7 E 3160 3023 2.38      
7 E 3160 3023 2.38      
8 E 1488 1423 4.14      
8 E 1488 1423 4.14      
9 E 1102 1054 46.83      
9 E 1102 1054 47.09      
10 E 657 628 72.95      
10 E 656 628 73.63      
11 E 283 270 1.54      
11 E 283 270 1.54      
12 E 151 145 0.02      
12 E 151 145 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 10098.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9660.5 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 wB97X-D/aug-cc-pVTZ
ABC
0.03560 0.03560 0.02115

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.455
C2 0.000 0.000 1.970
Br3 0.000 1.833 -0.205
Br4 1.588 -0.917 -0.205
Br5 -1.588 -0.917 -0.205
H6 0.000 -1.026 2.334
H7 0.888 0.513 2.334
H8 -0.888 0.513 2.334

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51501.94851.94851.94852.14072.14072.1407
C21.51502.84462.84462.84461.08831.08831.0883
Br31.94852.84463.17543.17543.82362.99652.9965
Br41.94852.84463.17543.17542.99652.99653.8236
Br51.94852.84463.17543.17542.99653.82362.9965
H62.14071.08833.82362.99652.99651.77651.7765
H72.14071.08832.99652.99653.82361.77651.7765
H82.14071.08832.99653.82362.99651.77651.7765

picture of 1,1,1-tribromoethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.539 C1 C2 H7 109.539
C1 C2 H8 109.539 C2 C1 Br3 109.799
C2 C1 Br4 109.799 C2 C1 Br5 109.799
Br3 C1 Br4 109.142 Br3 C1 Br5 109.142
Br4 C1 Br5 109.142 H6 C2 H7 109.403
H6 C2 H8 109.403 H7 C2 H8 109.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.019      
2 C -0.856      
3 Br -0.060      
4 Br -0.060      
5 Br -0.060      
6 H 0.339      
7 H 0.339      
8 H 0.339      


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 1.636 1.636
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.451 0.000 0.000
y 0.000 -67.451 0.000
z 0.000 0.000 -64.270
Traceless
 xyz
x -1.590 0.000 0.000
y 0.000 -1.590 0.000
z 0.000 0.000 3.181
Polar
3z2-r26.362
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 14.330 0.000 0.000
y 0.000 14.327 -0.000
z 0.000 -0.000 11.781


<r2> (average value of r2) Å2
<r2> 442.001
(<r2>)1/2 21.024