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

using model chemistry: B3LYP/6-31G

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/6-31G
 hartrees
Energy at 0K-7792.710156
Energy at 298.15K-7792.721807
HF Energy-7792.710156
Nuclear repulsion energy957.187436
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/6-31G
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 3075 2958 2.74      
2 A1 1477 1421 13.22      
3 A1 1087 1045 14.93      
4 A1 398 383 9.43      
5 A1 211 203 0.06      
6 A2 316 304 0.00      
7 E 3165 3044 3.09      
7 E 3165 3044 3.09      
8 E 1522 1464 5.33      
8 E 1522 1464 5.33      
9 E 1135 1092 65.79      
9 E 1135 1092 65.79      
10 E 597 574 116.09      
10 E 597 574 116.12      
11 E 280 269 2.21      
11 E 280 269 2.21      
12 E 144 138 0.06      
12 E 144 138 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 10123.1 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 9738.4 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/6-31G
ABC
0.03398 0.03398 0.02009

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.477
C2 0.000 0.000 1.986
Br3 0.000 1.879 -0.208
Br4 1.627 -0.939 -0.208
Br5 -1.627 -0.939 -0.208
H6 0.000 -1.027 2.360
H7 0.890 0.514 2.360
H8 -0.890 0.514 2.360

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.50961.99991.99991.99992.14552.14552.1455
C21.50962.88902.88902.88901.09331.09331.0933
Br31.99992.88903.25443.25443.87863.04173.0417
Br41.99992.88903.25443.25443.04173.04173.8786
Br51.99992.88903.25443.25443.04173.87863.0417
H62.14551.09333.87863.04173.04171.77951.7795
H72.14551.09333.04173.04173.87861.77951.7795
H82.14551.09333.04173.87863.04171.77951.7795

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 109.994 C1 C2 H7 109.994
C1 C2 H8 109.994 C2 C1 Br3 110.028
C2 C1 Br4 110.028 C2 C1 Br5 110.028
Br3 C1 Br4 108.909 Br3 C1 Br5 108.909
Br4 C1 Br5 108.909 H6 C2 H7 108.944
H6 C2 H8 108.944 H7 C2 H8 108.943
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.667      
2 C -0.326      
3 Br 0.141      
4 Br 0.141      
5 Br 0.141      
6 H 0.190      
7 H 0.190      
8 H 0.190      


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 1.971 1.971
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.938 0.000 0.000
y 0.000 -67.938 0.000
z 0.000 0.000 -64.073
Traceless
 xyz
x -1.932 0.000 0.000
y 0.000 -1.932 0.000
z 0.000 0.000 3.864
Polar
3z2-r27.728
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 10.182 0.000 0.000
y 0.000 10.182 0.000
z 0.000 0.000 6.454


<r2> (average value of r2) Å2
<r2> 461.786
(<r2>)1/2 21.489