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

using model chemistry: PBEPBE/aug-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 PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-7799.150106
Energy at 298.15K-7799.161662
HF Energy-7799.150106
Nuclear repulsion energy967.708244
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 PBEPBE/aug-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 2986 2968 1.53      
2 A1 1329 1321 11.23      
3 A1 1041 1034 11.16      
4 A1 402 400 4.81      
5 A1 209 208 0.00      
6 A2 296 294 0.00      
7 E 3084 3065 1.93      
7 E 3084 3065 1.93      
8 E 1393 1385 3.07      
8 E 1393 1385 3.07      
9 E 1026 1020 51.70      
9 E 1026 1020 51.69      
10 E 576 572 100.97      
10 E 576 572 100.96      
11 E 271 269 3.39      
11 E 271 269 3.39      
12 E 143 142 0.00      
12 E 143 142 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 9624.3 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 9565.6 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 PBEPBE/aug-cc-pVDZ
ABC
0.03473 0.03473 0.02062

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.471
C2 0.000 0.000 1.989
Br3 0.000 1.855 -0.208
Br4 1.606 -0.927 -0.208
Br5 -1.606 -0.927 -0.208
H6 0.000 -1.041 2.357
H7 0.902 0.521 2.357
H8 -0.902 0.521 2.357

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51801.97501.97501.97502.15422.15422.1542
C21.51802.87512.87512.87511.10421.10421.1042
Br31.97502.87513.21223.21223.86833.02843.0284
Br41.97502.87513.21223.21223.02843.02843.8683
Br51.97502.87513.21223.21223.02843.86833.0284
H62.15421.10423.86833.02843.02841.80321.8032
H72.15421.10423.02843.02843.86831.80321.8032
H82.15421.10423.02843.86833.02841.80321.8032

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 109.462 C1 C2 H7 109.462
C1 C2 H8 109.462 C2 C1 Br3 110.107
C2 C1 Br4 110.107 C2 C1 Br5 110.107
Br3 C1 Br4 108.828 Br3 C1 Br5 108.828
Br4 C1 Br5 108.828 H6 C2 H7 109.480
H6 C2 H8 109.480 H7 C2 H8 109.480
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.305      
2 C 1.088      
3 Br 0.211      
4 Br 0.211      
5 Br 0.211      
6 H -0.138      
7 H -0.138      
8 H -0.138      


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 -67.996 0.000 0.000
y 0.000 -67.996 0.000
z 0.000 0.000 -64.563
Traceless
 xyz
x -1.716 0.000 0.000
y 0.000 -1.716 0.000
z 0.000 0.000 3.433
Polar
3z2-r26.866
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 14.980 0.000 0.000
y 0.000 14.979 0.000
z 0.000 0.000 12.156


<r2> (average value of r2) Å2
<r2> 452.427
(<r2>)1/2 21.270