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

using model chemistry: LSDA/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/cc-pVTZ
 hartrees
Energy at 0K-2650.210699
Energy at 298.15K 
HF Energy-2650.210699
Nuclear repulsion energy165.479222
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 LSDA/cc-pVTZ
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' 3046 3012 8.82      
2 A' 3017 2984 5.20      
3 A' 2966 2934 10.87      
4 A' 1420 1405 4.49      
5 A' 1409 1394 2.51      
6 A' 1337 1322 13.42      
7 A' 1212 1199 37.64      
8 A' 1080 1068 0.58      
9 A' 952 942 18.33      
10 A' 582 576 10.86      
11 A' 280 277 2.09      
12 A" 3085 3052 3.48      
13 A" 3056 3023 2.24      
14 A" 1401 1386 13.74      
15 A" 1210 1197 0.65      
16 A" 988 977 0.01      
17 A" 744 736 6.00      
18 A" 253 251 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 14019.1 cm-1
Scaled (by 0.9891) Zero Point Vibrational Energy (zpe) 13866.3 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 LSDA/cc-pVTZ
ABC
1.01526 0.12922 0.11984

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.567 -2.000 0.000
C2 0.593 -1.062 0.000
Br3 0.000 0.784 0.000
H4 1.222 -1.165 0.892
H5 1.222 -1.165 -0.892
H6 -0.206 -3.041 0.000
H7 -1.196 -1.855 0.889
H8 -1.196 -1.855 -0.889

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.49172.84102.16632.16631.10171.09841.0984
C21.49171.93871.09631.09632.13432.14952.1495
Br32.84101.93872.46702.46703.83033.03123.0312
H42.16631.09632.46701.78442.52082.51443.0813
H52.16631.09632.46701.78442.52083.08132.5144
H61.10172.13433.83032.52082.52081.78161.7816
H71.09842.14953.03122.51443.08131.78161.7777
H81.09842.14953.03123.08132.51441.78161.7777

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 111.153 C1 C2 H4 112.762
C1 C2 H5 112.762 C2 C1 H6 109.851
C2 C1 H7 111.267 C2 C1 H8 111.267
Br3 C2 H4 105.355 Br3 C2 H5 105.355
H4 C2 H5 108.938 H6 C1 H7 108.150
H6 C1 H8 108.150 H7 C1 H8 108.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.340      
2 C -0.239      
3 Br -0.105      
4 H 0.147      
5 H 0.147      
6 H 0.123      
7 H 0.133      
8 H 0.133      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.439 -2.044 0.000 2.091
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.069 -0.932 0.000
y -0.932 -30.209 0.000
z 0.000 0.000 -32.327
Traceless
 xyz
x -0.802 -0.932 0.000
y -0.932 1.989 0.000
z 0.000 0.000 -1.188
Polar
3z2-r2-2.375
x2-y2-1.861
xy-0.932
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.850 -0.101 0.000
y -0.101 8.641 0.000
z 0.000 0.000 5.369


<r2> (average value of r2) Å2
<r2> 103.914
(<r2>)1/2 10.194