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

using model chemistry: HSEh1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HSEh1PBE/STO-3G
 hartrees
Energy at 0K-7714.333809
Energy at 298.15K-7714.345409
HF Energy-7714.333809
Nuclear repulsion energy968.151533
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 HSEh1PBE/STO-3G
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 3357 2965 0.10      
2 A1 1562 1379 0.52      
3 A1 1142 1009 20.43      
4 A1 441 389 9.27      
5 A1 243 214 1.12      
6 A2 282 249 0.00      
7 E 3535 3122 0.77      
7 E 3535 3122 0.77      
8 E 1662 1467 1.85      
8 E 1662 1467 1.85      
9 E 1195 1055 64.67      
9 E 1195 1055 64.67      
10 E 747 659 78.32      
10 E 747 659 78.32      
11 E 288 254 0.39      
11 E 288 254 0.39      
12 E 160 141 0.39      
12 E 160 141 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 11098.6 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 9801.2 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 HSEh1PBE/STO-3G
ABC
0.03474 0.03474 0.02053

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.414
C2 0.000 0.000 1.973
Br3 0.000 1.859 -0.203
Br4 1.610 -0.929 -0.203
Br5 -1.610 -0.929 -0.203
H6 0.000 -1.033 2.348
H7 0.894 0.516 2.348
H8 -0.894 0.516 2.348

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.55961.95841.95841.95842.19322.19322.1932
C21.55962.86222.86222.86221.09881.09881.0988
Br31.95842.86223.21923.21923.85643.01893.0189
Br41.95842.86223.21923.21923.01893.01893.8564
Br51.95842.86223.21923.21923.01893.85643.0189
H62.19321.09883.85643.01893.01891.78871.7887
H72.19321.09883.01893.01893.85641.78871.7887
H82.19321.09883.01893.85643.01891.78871.7887

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 109.969 C1 C2 H7 109.969
C1 C2 H8 109.969 C2 C1 Br3 108.368
C2 C1 Br4 108.368 C2 C1 Br5 108.368
Br3 C1 Br4 110.551 Br3 C1 Br5 110.551
Br4 C1 Br5 110.551 H6 C2 H7 108.969
H6 C2 H8 108.969 H7 C2 H8 108.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.109      
2 C -0.230      
3 Br 0.012      
4 Br 0.012      
5 Br 0.012      
6 H 0.101      
7 H 0.101      
8 H 0.101      


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 1.509 1.509
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -62.509 0.000 0.000
y 0.000 -62.509 0.000
z 0.000 0.000 -59.322
Traceless
 xyz
x -1.594 0.000 0.000
y 0.000 -1.594 0.000
z 0.000 0.000 3.187
Polar
3z2-r26.374
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 5.421 0.000 0.000
y 0.000 5.421 0.000
z 0.000 0.000 2.624


<r2> (average value of r2) Å2
<r2> 449.567
(<r2>)1/2 21.203