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

using model chemistry: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-2653.321075
Energy at 298.15K 
HF Energy-2653.321075
Nuclear repulsion energy160.497426
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 BLYP/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 A' 3023 3028 27.88      
2 A' 3009 3014 2.14      
3 A' 2947 2952 20.82      
4 A' 1432 1434 1.33      
5 A' 1419 1421 0.33      
6 A' 1351 1353 1.39      
7 A' 1211 1213 61.94      
8 A' 1040 1041 0.48      
9 A' 940 941 18.41      
10 A' 517 518 17.82      
11 A' 271 271 3.02      
12 A" 3079 3084 14.48      
13 A" 3043 3047 6.86      
14 A" 1412 1414 6.99      
15 A" 1211 1213 0.48      
16 A" 980 981 0.03      
17 A" 749 750 4.16      
18 A" 250 250 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 13939.9 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 13962.2 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 BLYP/cc-pVDZ
ABC
0.98697 0.12024 0.11183

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.578 -2.073 0.000
C2 0.603 -1.108 0.000
Br3 0.000 0.814 0.000
H4 1.234 -1.199 0.902
H5 1.234 -1.199 -0.902
H6 -0.193 -3.117 0.000
H7 -1.212 -1.940 0.898
H8 -1.212 -1.940 -0.898

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.52522.94452.20442.20441.11241.10761.1076
C21.52522.01401.10471.10472.16112.18922.1892
Br32.94452.01402.52742.52743.93573.14023.1402
H42.20441.10472.52741.80452.55482.55523.1259
H52.20441.10472.52741.80452.55483.12592.5552
H61.11242.16113.93572.55482.55481.79731.7973
H71.10762.18923.14022.55523.12591.79731.7967
H81.10762.18923.14023.12592.55521.79731.7967

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 111.864 C1 C2 H4 112.931
C1 C2 H5 112.931 C2 C1 H6 109.031
C2 C1 H7 111.529 C2 C1 H8 111.529
Br3 C2 H4 104.466 Br3 C2 H5 104.466
H4 C2 H5 109.528 H6 C1 H7 108.113
H6 C1 H8 108.113 H7 C1 H8 108.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.027      
2 C -0.083      
3 Br -0.134      
4 H 0.057      
5 H 0.057      
6 H 0.018      
7 H 0.029      
8 H 0.029      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.427 -2.006 0.000 2.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.771 -0.918 0.000
y -0.918 -29.712 0.000
z 0.000 0.000 -32.085
Traceless
 xyz
x -0.872 -0.918 0.000
y -0.918 2.215 0.000
z 0.000 0.000 -1.343
Polar
3z2-r2-2.686
x2-y2-2.059
xy-0.918
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.946 -0.226 0.000
y -0.226 8.004 0.000
z 0.000 0.000 4.521


<r2> (average value of r2) Å2
<r2> 109.385
(<r2>)1/2 10.459