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All results from a given calculation for C2H5Br (Ethyl bromide)

using model chemistry: CCSD(T)=FULL/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-494.898657
Energy at 298.15K 
HF Energy-494.187820
Nuclear repulsion energy128.350727
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(T)=FULL/cc-pVTZ-PP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3128 3128        
2 A' 3114 3114        
3 A' 3059 3059        
4 A' 1517 1517        
5 A' 1503 1503        
6 A' 1424 1424        
7 A' 1295 1295        
8 A' 1095 1095        
9 A' 993 993        
10 A' 592 592        
11 A' 288 288        
12 A" 3168 3168        
13 A" 3133 3133        
14 A" 1507 1507        
15 A" 1280 1280        
16 A" 1046 1046        
17 A" 776 776        
18 A" 279 279        

Unscaled Zero Point Vibrational Energy (zpe) 14597.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 14597.4 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(T)=FULL/cc-pVTZ-PP
ABC
1.01095 0.12786 0.11851

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.015 0.000
C2 0.600 -1.064 0.000
Br3 0.000 0.788 0.000
H4 1.216 -1.173 0.884
H5 1.216 -1.173 -0.884
H6 -0.210 -3.043 0.000
H7 -1.191 -1.867 0.881
H8 -1.191 -1.867 -0.881

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51042.86132.16612.16611.09011.08651.0865
C21.51041.94731.08271.08272.13792.15192.1519
Br32.86131.94732.47112.47113.83673.04073.0407
H42.16611.08272.47111.76772.51202.50533.0647
H52.16611.08272.47111.76772.51203.06472.5053
H61.09012.13793.83672.51202.51201.76701.7670
H71.08652.15193.04072.50533.06471.76701.7628
H81.08652.15193.04073.06472.50531.76701.7628

picture of Ethyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Br3 111.055 C1 C2 H4 112.252
C1 C2 H5 112.252 C2 C1 H6 109.535
C2 C1 H7 110.863 C2 C1 H8 110.863
Br3 C2 H4 105.718 Br3 C2 H5 105.718
H4 C2 H5 109.445 H6 C1 H7 108.544
H6 C1 H8 108.544 H7 C1 H8 108.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability