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All results from a given calculation for CH3CBr3 (1,1,1-tribromoethane)

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-7800.474772
Energy at 298.15K-7800.486424
HF Energy-7800.474772
Nuclear repulsion energy966.153360
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/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 3051 2959 2.59      
2 A1 1386 1344 5.00      
3 A1 1057 1025 12.15      
4 A1 407 395 6.41      
5 A1 213 206 0.01      
6 A2 310 301 0.00      
7 E 3144 3050 2.15      
7 E 3144 3050 2.14      
8 E 1445 1402 2.71      
8 E 1445 1402 2.71      
9 E 1075 1042 55.11      
9 E 1075 1042 55.10      
10 E 599 581 102.78      
10 E 598 581 102.78      
11 E 276 268 3.04      
11 E 276 268 3.04      
12 E 147 143 0.00      
12 E 147 143 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 9896.4 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 9599.5 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 B3LYP/cc-pVDZ
ABC
0.03462 0.03462 0.02052

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.466
C2 0.000 0.000 1.985
Br3 0.000 1.859 -0.207
Br4 1.610 -0.930 -0.207
Br5 -1.610 -0.930 -0.207
H6 0.000 -1.036 2.353
H7 0.897 0.518 2.353
H8 -0.897 0.518 2.353

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51851.97741.97741.97742.15272.15272.1527
C21.51852.87442.87442.87441.09971.09971.0997
Br31.97742.87443.21993.21993.86513.02663.0266
Br41.97742.87443.21993.22003.02663.02663.8651
Br51.97742.87443.21993.22003.02663.86513.0266
H62.15271.09973.86513.02663.02661.79471.7947
H72.15271.09973.02663.02663.86511.79471.7947
H82.15271.09973.02663.86513.02661.79471.7947

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 109.574 C1 C2 H7 109.574
C1 C2 H8 109.574 C2 C1 Br3 109.922
C2 C1 Br4 109.922 C2 C1 Br5 109.922
Br3 C1 Br4 109.016 Br3 C1 Br5 109.016
Br4 C1 Br5 109.016 H6 C2 H7 109.368
H6 C2 H8 109.368 H7 C2 H8 109.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.383      
2 C 0.118      
3 Br 0.031      
4 Br 0.031      
5 Br 0.031      
6 H 0.058      
7 H 0.058      
8 H 0.058      


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 1.649 1.649
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.660 0.000 0.000
y 0.000 -66.660 0.000
z 0.000 0.000 -63.911
Traceless
 xyz
x -1.375 0.000 0.000
y 0.000 -1.375 0.000
z 0.000 0.000 2.749
Polar
3z2-r25.498
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 11.256 0.000 0.000
y 0.000 11.256 0.000
z 0.000 0.000 8.441


<r2> (average value of r2) Å2
<r2> 453.239
(<r2>)1/2 21.289