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All results from a given calculation for CH2BrCH2Br (Ethane, 1,2-dibromo-)

using model chemistry: QCISD(T)=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-5223.525587
Energy at 298.15K 
HF Energy-5222.854614
Nuclear repulsion energy415.058406
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 QCISD(T)=FULL/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3103 3010        
2 Ag 1465 1422        
3 Ag 1285 1246        
4 Ag 1082 1050        
5 Ag 677 657        
6 Ag 192 186        
7 Au 3190 3095        
8 Au 1098 1065        
9 Au 743 721        
10 Au 99 96        
11 Bg 3170 3075        
12 Bg 1275 1237        
13 Bg 942 914        
14 Bu 3109 3016        
15 Bu 1456 1413        
16 Bu 1200 1164        
17 Bu 607 589        
18 Bu 180 175        

Unscaled Zero Point Vibrational Energy (zpe) 12436.4 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 12064.6 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 QCISD(T)=FULL/aug-cc-pVDZ
ABC
0.92985 0.01951 0.01926

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.498 0.574 0.000
C2 -0.498 -0.574 0.000
Br3 -0.498 2.274 0.000
Br4 0.498 -2.274 0.000
H5 1.124 0.575 0.903
H6 1.124 0.575 -0.903
H7 -1.124 -0.575 0.903
H8 -1.124 -0.575 -0.903

Atom - Atom Distances (Å)
  C1 C2 Br3 Br4 H5 H6 H7 H8
C11.52001.97032.84771.09851.09852.18312.1831
C21.52002.84771.97032.18312.18311.09851.0985
Br31.97032.84774.65542.51642.51643.05313.0531
Br42.84771.97034.65543.05313.05312.51642.5164
H51.09852.18312.51643.05311.80612.52453.1040
H61.09852.18312.51643.05311.80613.10402.5245
H72.18311.09853.05312.51642.52453.10401.8061
H82.18311.09853.05312.51643.10402.52451.8061

picture of Ethane, 1,2-dibromo- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br4 108.665 C1 C2 H7 111.959
C1 C2 H8 111.959 C2 C1 Br3 108.665
C2 C1 H5 111.959 C2 C1 H6 111.959
Br3 C1 H5 106.689 Br3 C1 H6 106.689
Br4 C2 H7 106.689 Br4 C2 H8 106.689
H5 C1 H6 110.579 H7 C2 H8 110.579
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability