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

using model chemistry: CCD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/6-31G
 hartrees
Energy at 0K-2648.632520
Energy at 298.15K 
HF Energy-2648.378527
Nuclear repulsion energy160.588659
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/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3110 2984 31.90      
2 A' 3095 2970 3.58      
3 A' 3024 2902 19.94      
4 A' 1551 1488 4.21      
5 A' 1537 1474 2.37      
6 A' 1485 1425 5.54      
7 A' 1335 1281 49.35      
8 A' 1106 1061 0.51      
9 A' 1013 972 10.75      
10 A' 549 527 10.91      
11 A' 287 276 1.81      
12 A" 3176 3048 15.60      
13 A" 3117 2991 14.11      
14 A" 1543 1480 7.80      
15 A" 1313 1260 0.70      
16 A" 1060 1017 0.06      
17 A" 792 760 4.72      
18 A" 266 255 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14679.5 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 14085.0 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/6-31G
ABC
0.96520 0.12125 0.11236

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.587 -2.059 0.000
C2 0.619 -1.116 0.000
Br3 0.000 0.811 0.000
H4 1.237 -1.219 0.898
H5 1.237 -1.219 -0.898
H6 -0.240 -3.107 0.000
H7 -1.212 -1.899 0.892
H8 -1.212 -1.899 -0.892

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.53132.92962.20042.20041.10391.10061.1006
C21.53132.02361.09541.09542.16862.18212.1821
Br32.92962.02362.54132.54133.92533.09983.0998
H42.20041.09542.54131.79652.56012.54223.1091
H52.20041.09542.54131.79652.56013.10912.5422
H61.10392.16863.92532.56012.56011.78871.7887
H71.10062.18213.09982.54223.10911.78871.7834
H81.10062.18213.09983.10912.54221.78871.7834

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 110.223 C1 C2 H4 112.743
C1 C2 H5 112.743 C2 C1 H6 109.701
C2 C1 H7 110.955 C2 C1 H8 110.955
Br3 C2 H4 105.212 Br3 C2 H5 105.212
H4 C2 H5 110.172 H6 C1 H7 108.463
H6 C1 H8 108.463 H7 C1 H8 108.226
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability