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

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-7793.106499
Energy at 298.15K-7793.117981
HF Energy-7793.106499
Nuclear repulsion energy958.492578
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 BLYP/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 2994 2970 3.08      
2 A1 1397 1386 4.70      
3 A1 1017 1009 12.15      
4 A1 392 389 6.68      
5 A1 206 204 0.01      
6 A2 298 296 0.00      
7 E 3072 3047 4.00      
7 E 3072 3047 4.00      
8 E 1468 1456 2.54      
8 E 1468 1456 2.54      
9 E 1069 1060 51.36      
9 E 1069 1060 51.34      
10 E 555 550 110.89      
10 E 555 550 110.85      
11 E 267 265 3.73      
11 E 267 265 3.73      
12 E 144 143 0.01      
12 E 144 143 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 9726.5 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 9647.7 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 BLYP/6-31G*
ABC
0.03407 0.03407 0.02022

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.468
C2 0.000 0.000 2.002
Br3 0.000 1.884 -0.209
Br4 1.632 -0.942 -0.209
Br5 -1.632 -0.942 -0.209
H6 0.000 -1.035 2.375
H7 0.896 0.517 2.375
H8 -0.896 0.517 2.375

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.53422.00192.00192.00192.16982.16982.1698
C21.53422.90482.90482.90481.10001.10001.1000
Br32.00192.90483.26343.26343.89833.05733.0573
Br42.00192.90483.26343.26343.05733.05733.8983
Br52.00192.90483.26343.26343.05733.89833.0573
H62.16981.10003.89833.05733.05731.79251.7925
H72.16981.10003.05733.05733.89831.79251.7925
H82.16981.10003.05733.89833.05731.79251.7925

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 109.814 C1 C2 H7 109.814
C1 C2 H8 109.814 C2 C1 Br3 109.755
C2 C1 Br4 109.755 C2 C1 Br5 109.755
Br3 C1 Br4 109.186 Br3 C1 Br5 109.186
Br4 C1 Br5 109.186 H6 C2 H7 109.126
H6 C2 H8 109.126 H7 C2 H8 109.126
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.026      
2 C -0.393      
3 Br -0.038      
4 Br -0.038      
5 Br -0.038      
6 H 0.177      
7 H 0.177      
8 H 0.177      


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 1.677 1.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -66.592 0.000 0.000
y 0.000 -66.592 0.000
z 0.000 0.000 -63.537
Traceless
 xyz
x -1.528 0.000 0.000
y 0.000 -1.528 0.000
z 0.000 0.000 3.055
Polar
3z2-r26.111
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 12.095 0.000 0.000
y 0.000 12.095 0.000
z 0.000 0.000 9.070


<r2> (average value of r2) Å2
<r2> 459.594
(<r2>)1/2 21.438