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

using model chemistry: M06-2X/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/3-21G
 hartrees
Energy at 0K-7763.124720
Energy at 298.15K-7763.136491
HF Energy-7763.124720
Nuclear repulsion energy961.939514
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 M06-2X/3-21G
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 3058 2931 0.66      
2 A1 1475 1414 18.16      
3 A1 1062 1018 8.96      
4 A1 397 381 7.13      
5 A1 222 212 0.12      
6 A2 300 287 0.00      
7 E 3140 3010 0.28      
7 E 3140 3010 0.30      
8 E 1535 1471 4.45      
8 E 1535 1471 4.42      
9 E 1139 1092 67.05      
9 E 1139 1092 67.24      
10 E 673 645 92.72      
10 E 672 644 93.77      
11 E 290 278 0.78      
11 E 290 278 0.79      
12 E 146 140 0.18      
12 E 146 140 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 10177.5 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 9757.1 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 M06-2X/3-21G
ABC
0.03432 0.03432 0.02022

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.444
C2 0.000 0.000 1.963
Br3 0.000 1.873 -0.204
Br4 1.622 -0.937 -0.204
Br5 -1.622 -0.937 -0.204
H6 0.000 -1.030 2.328
H7 0.892 0.515 2.328
H8 -0.892 0.515 2.328

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51851.98221.98221.98222.14712.14712.1471
C21.51852.86442.86442.86441.09301.09301.0930
Br31.98222.86443.24433.24433.85253.00893.0089
Br41.98222.86443.24433.24433.00893.00893.8525
Br51.98222.86443.24433.24433.00893.85253.0089
H62.14711.09303.85253.00893.00891.78421.7842
H72.14711.09303.00893.00893.85251.78421.7842
H82.14711.09303.00893.85253.00891.78421.7842

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 109.527 C1 C2 H7 109.527
C1 C2 H8 109.527 C2 C1 Br3 109.099
C2 C1 Br4 109.099 C2 C1 Br5 109.099
Br3 C1 Br4 109.841 Br3 C1 Br5 109.841
Br4 C1 Br5 109.841 H6 C2 H7 109.415
H6 C2 H8 109.415 H7 C2 H8 109.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.791      
2 C -0.495      
3 Br 0.186      
4 Br 0.186      
5 Br 0.186      
6 H 0.243      
7 H 0.243      
8 H 0.243      


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 1.745 1.745
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.774 0.000 0.000
y 0.000 -67.774 0.000
z 0.000 0.000 -64.877
Traceless
 xyz
x -1.448 0.000 0.000
y 0.000 -1.448 0.000
z 0.000 0.000 2.897
Polar
3z2-r25.794
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 9.763 0.000 0.000
y 0.000 9.763 0.002
z 0.000 0.002 5.812


<r2> (average value of r2) Å2
<r2> 458.251
(<r2>)1/2 21.407