return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-7804.552315
Energy at 298.15K-7804.563842
HF Energy-7804.552315
Nuclear repulsion energy965.997830
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 B97D3/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 3000 2958 3.53      
2 A1 1379 1360 6.12      
3 A1 1021 1007 12.79      
4 A1 394 388 5.39      
5 A1 206 203 0.00      
6 A2 301 297 0.00      
7 E 3085 3042 4.03      
7 E 3085 3042 4.03      
8 E 1446 1426 2.33      
8 E 1446 1426 2.33      
9 E 1061 1046 51.73      
9 E 1061 1046 51.70      
10 E 555 547 111.24      
10 E 555 547 111.16      
11 E 269 266 4.60      
11 E 269 266 4.60      
12 E 142 140 0.03      
12 E 142 140 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 9707.8 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 9571.9 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 B97D3/cc-pVTZ
ABC
0.03461 0.03461 0.02049

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.466
C2 0.000 0.000 1.980
Br3 0.000 1.860 -0.207
Br4 1.611 -0.930 -0.207
Br5 -1.611 -0.930 -0.207
H6 0.000 -1.030 2.345
H7 0.892 0.515 2.345
H8 -0.892 0.515 2.345

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51391.97841.97841.97842.14242.14242.1424
C21.51392.87112.87112.87111.09261.09261.0926
Br31.97842.87113.22233.22233.85543.01923.0192
Br41.97842.87113.22233.22233.01923.01923.8554
Br51.97842.87113.22233.22233.01923.85543.0192
H62.14241.09263.85543.01923.01921.78391.7839
H72.14241.09263.01923.01923.85541.78391.7839
H82.14241.09263.01923.85543.01921.78391.7839

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 109.485 C1 C2 H7 109.485
C1 C2 H8 109.485 C2 C1 Br3 109.485
C2 C1 Br4 109.485 C2 C1 Br5 109.485
Br3 C1 Br4 109.458 Br3 C1 Br5 109.458
Br4 C1 Br5 109.458 H6 C2 H7 109.458
H6 C2 H8 109.458 H7 C2 H8 109.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.128      
2 C -0.204      
3 Br -0.009      
4 Br -0.009      
5 Br -0.009      
6 H 0.120      
7 H 0.120      
8 H 0.120      


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 1.752 1.752
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -67.319 0.000 0.000
y 0.000 -67.319 0.000
z 0.000 0.000 -63.903
Traceless
 xyz
x -1.708 0.000 0.000
y 0.000 -1.708 0.000
z 0.000 0.000 3.416
Polar
3z2-r26.832
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 13.394 0.000 0.000
y 0.000 13.393 0.000
z 0.000 0.000 10.416


<r2> (average value of r2) Å2
<r2> 453.748
(<r2>)1/2 21.301