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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-7800.724746
Energy at 298.15K-7800.736403
HF Energy-7800.724746
Nuclear repulsion energy970.217748
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 B3LYPultrafine/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 3048 2947 2.49      
2 A1 1415 1368 6.51      
3 A1 1042 1008 8.97      
4 A1 407 393 4.60      
5 A1 212 205 0.01      
6 A2 304 293 0.00      
7 E 3127 3022 2.82      
7 E 3127 3022 2.82      
8 E 1478 1428 3.01      
8 E 1478 1428 3.01      
9 E 1090 1053 50.36      
9 E 1090 1053 50.36      
10 E 601 581 92.99      
10 E 601 581 92.99      
11 E 276 267 2.79      
11 E 276 267 2.79      
12 E 146 141 0.00      
12 E 146 141 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 9930.6 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 9600.0 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 B3LYPultrafine/cc-pVTZ
ABC
0.03491 0.03491 0.02069

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.464
C2 0.000 0.000 1.978
Br3 0.000 1.851 -0.207
Br4 1.603 -0.926 -0.207
Br5 -1.603 -0.926 -0.207
H6 0.000 -1.025 2.344
H7 0.888 0.512 2.344
H8 -0.888 0.512 2.344

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51331.96911.96911.96912.14132.14132.1413
C21.51332.86332.86332.86331.08861.08861.0886
Br31.96912.86333.20663.20663.84463.01463.0146
Br41.96912.86333.20663.20663.01463.01463.8446
Br51.96912.86333.20663.20663.01463.84463.0146
H62.14131.08863.84463.01463.01461.77531.7753
H72.14131.08863.01463.01463.84461.77531.7753
H82.14131.08863.01463.84463.01461.77531.7753

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 109.687 C1 C2 H7 109.687
C1 C2 H8 109.687 C2 C1 Br3 109.922
C2 C1 Br4 109.922 C2 C1 Br5 109.922
Br3 C1 Br4 109.017 Br3 C1 Br5 109.017
Br4 C1 Br5 109.017 H6 C2 H7 109.255
H6 C2 H8 109.255 H7 C2 H8 109.255
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.097      
2 C -0.242      
3 Br -0.016      
4 Br -0.016      
5 Br -0.016      
6 H 0.129      
7 H 0.129      
8 H 0.129      


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 1.702 1.702
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.838 0.000 0.000
y 0.000 -67.838 0.000
z 0.000 0.000 -64.586
Traceless
 xyz
x -1.626 0.000 0.000
y 0.000 -1.626 0.000
z 0.000 0.000 3.252
Polar
3z2-r26.504
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 13.029 0.000 0.000
y 0.000 13.029 0.000
z 0.000 0.000 10.180


<r2> (average value of r2) Å2
<r2> 450.446
(<r2>)1/2 21.224