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All results from a given calculation for CH2BrCBr3 (1,1,1,2-tetrabromo ethane)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-10368.762240
Energy at 298.15K-10368.753404
HF Energy-10356.774586
Nuclear repulsion energy1582.711210
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 CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3296 3296 4.80 77.21 0.09 0.17
2 A' 1600 1600 4.53 9.18 0.74 0.85
3 A' 1412 1412 33.50 10.77 0.49 0.66
4 A' 1136 1136 4.36 6.78 0.21 0.35
5 A' 833 833 48.15 49.09 0.55 0.71
6 A' 701 701 74.22 4.30 0.12 0.22
7 A' 490 490 12.41 8.98 0.15 0.26
8 A' 259 259 0.19 10.28 0.12 0.21
9 A' 208 208 0.17 3.49 0.74 0.85
10 A' 162 162 0.01 1.82 0.67 0.80
11 A' 105 105 0.21 0.48 0.71 0.83
12 A" 3374 3374 0.33 58.03 0.75 0.86
13 A" 1329 1329 12.76 4.87 0.75 0.86
14 A" 1015 1015 48.06 2.90 0.75 0.86
15 A" 731 731 55.74 14.35 0.75 0.86
16 A" 294 294 1.62 1.43 0.75 0.86
17 A" 171 171 0.26 1.65 0.75 0.86
18 A" 85 85 0.43 1.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8600.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8600.1 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 CBS-Q
ABC
0.02496 0.01496 0.01356

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.194 0.345 0.000
C2 -1.334 0.439 0.000
Br3 0.841 2.173 0.000
Br4 0.841 -0.548 1.578
Br5 0.841 -0.548 -1.578
Br6 -2.233 -1.267 0.000
H7 -1.656 0.967 0.885
H8 -1.656 0.967 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 Br5 Br6 H7 H8
C11.53031.93981.92541.92542.91332.14272.1427
C21.53032.78182.86262.86261.92811.07981.0798
Br31.93982.78183.14573.14574.61362.91062.9106
Br41.92542.86263.14573.15683.53003.00193.8206
Br51.92542.86263.14573.15683.53003.82063.0019
Br62.91331.92814.61363.53003.53002.47122.4712
H72.14271.07982.91063.00193.82062.47121.7696
H82.14271.07982.91063.82063.00192.47121.7696

picture of 1,1,1,2-tetrabromo ethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br6 114.295 C1 C2 H7 109.135
C1 C2 H8 109.135 C2 C1 Br3 105.975
C2 C1 Br4 111.353 C2 C1 Br5 111.353
Br3 C1 Br4 108.949 Br3 C1 Br5 108.949
Br4 C1 Br5 110.127 Br6 C2 H7 107.081
Br6 C2 H8 107.081 H7 C2 H8 110.050
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability