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

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-7787.866052
Energy at 298.15K-7787.878006
HF Energy-7787.194903
Nuclear repulsion energy978.429885
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 CCD/6-31+G**
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 3126 2945 3.94      
2 A1 1474 1389 5.42      
3 A1 1110 1046 2.58      
4 A1 430 405 3.69      
5 A1 229 215 0.04      
6 A2 369 347 0.00      
7 E 3226 3040 2.83      
7 E 3226 3040 2.83      
8 E 1536 1447 4.01      
8 E 1536 1447 4.01      
9 E 1140 1075 37.56      
9 E 1140 1075 37.56      
10 E 675 636 58.69      
10 E 675 636 58.68      
11 E 296 279 0.97      
11 E 296 279 0.97      
12 E 161 151 0.04      
12 E 161 151 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 10401.4 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 9801.3 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 CCD/6-31+G**
ABC
0.03549 0.03549 0.02111

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.463
C2 0.000 0.000 1.980
Br3 0.000 1.833 -0.207
Br4 1.587 -0.916 -0.207
Br5 -1.587 -0.916 -0.207
H6 0.000 -1.027 2.341
H7 0.889 0.514 2.341
H8 -0.889 0.514 2.341

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51721.95131.95131.95132.14082.14082.1408
C21.51722.85332.85332.85331.08871.08871.0887
Br31.95132.85333.17463.17463.83033.00403.0040
Br41.95132.85333.17463.17463.00403.00403.8303
Br51.95132.85333.17463.17463.00403.83033.0040
H62.14081.08873.83033.00403.00401.77901.7790
H72.14081.08873.00403.00403.83031.77901.7790
H82.14081.08873.00403.83033.00401.77901.7790

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 109.375 C1 C2 H7 109.375
C1 C2 H8 109.375 C2 C1 Br3 110.069
C2 C1 Br4 110.069 C2 C1 Br5 110.069
Br3 C1 Br4 108.867 Br3 C1 Br5 108.867
Br4 C1 Br5 108.867 H6 C2 H7 109.567
H6 C2 H8 109.567 H7 C2 H8 109.567
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability