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

using model chemistry: CCSD=FULL/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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-7787.874018
Energy at 298.15K-7787.885862
HF Energy-7787.133722
Nuclear repulsion energy976.814729
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 CCSD=FULL/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 3094 2939 2.90      
2 A1 1469 1395 8.12      
3 A1 1110 1054 3.35      
4 A1 424 403 4.81      
5 A1 227 215 0.07      
6 A2 327 310 0.00      
7 E 3186 3026 2.59      
7 E 3186 3026 2.59      
8 E 1530 1454 4.38      
8 E 1530 1454 4.38      
9 E 1131 1074 41.83      
9 E 1131 1074 41.84      
10 E 664 630 63.15      
10 E 664 630 63.14      
11 E 287 273 1.18      
11 E 287 273 1.18      
12 E 161 153 0.04      
12 E 161 153 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 10284.2 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 9767.9 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 CCSD=FULL/6-31G*
ABC
0.03538 0.03538 0.02103

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

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 1.979
Br3 0.000 1.836 -0.207
Br4 1.590 -0.918 -0.207
Br5 -1.590 -0.918 -0.207
H6 0.000 -1.031 2.345
H7 0.893 0.516 2.345
H8 -0.893 0.516 2.345

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 H6 H7 H8
C11.51621.95451.95451.95452.14582.14572.1457
C21.51622.85472.85472.85471.09411.09411.0941
Br31.95452.85473.18053.18053.83813.00843.0084
Br41.95452.85473.18053.18053.00843.00843.8381
Br51.95452.85473.18053.18053.00843.83813.0084
H62.14581.09413.83813.00843.00841.78611.7861
H72.14571.09413.00843.00843.83811.78611.7861
H82.14571.09413.00843.83813.00841.78611.7861

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 109.519 C1 C2 H7 109.519
C1 C2 H8 109.519 C2 C1 Br3 110.033
C2 C1 Br4 110.033 C2 C1 Br5 110.033
Br3 C1 Br4 108.904 Br3 C1 Br5 108.904
Br4 C1 Br5 108.904 H6 C2 H7 109.423
H6 C2 H8 109.423 H7 C2 H8 109.423
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability