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

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVTZ
 hartrees
Energy at 0K-2653.382948
Energy at 298.15K 
HF Energy-2653.382948
Nuclear repulsion energy163.408620
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 TPSSh/aug-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' 3098 2990 27.12 73.47 0.20 0.33
2 A' 3085 2977 0.04 130.08 0.24 0.39
3 A' 3022 2917 21.07 221.68 0.07 0.13
4 A' 1509 1456 1.89 3.29 0.75 0.86
5 A' 1494 1442 0.87 5.36 0.72 0.84
6 A' 1415 1366 3.50 1.61 0.54 0.70
7 A' 1271 1227 53.44 7.03 0.26 0.41
8 A' 1076 1038 0.08 3.84 0.12 0.21
9 A' 968 935 16.44 3.38 0.69 0.82
10 A' 559 540 17.18 20.77 0.17 0.29
11 A' 275 265 2.24 2.83 0.27 0.43
12 A" 3154 3045 8.33 31.65 0.75 0.86
13 A" 3113 3004 8.68 70.78 0.75 0.86
14 A" 1492 1440 8.98 5.57 0.75 0.86
15 A" 1267 1223 0.15 0.76 0.75 0.86
16 A" 1029 993 0.06 1.22 0.75 0.86
17 A" 766 740 3.10 0.01 0.75 0.86
18 A" 251 242 0.01 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14421.9 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 13920.0 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 TPSSh/aug-cc-pVTZ
ABC
1.00748 0.12505 0.11610

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.574 -2.036 0.000
C2 0.600 -1.081 0.000
Br3 0.000 0.797 0.000
H4 1.218 -1.175 0.889
H5 1.218 -1.175 -0.889
H6 -0.197 -3.064 0.000
H7 -1.196 -1.898 0.885
H8 -1.196 -1.898 -0.885

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51342.89132.17782.17781.09491.09031.0903
C21.51341.97161.08681.08682.13742.16192.1619
Br32.89131.97162.48312.48313.86673.07863.0786
H42.17781.08682.48311.77712.52192.51953.0812
H52.17781.08682.48311.77712.52193.08122.5195
H61.09492.13743.86672.52192.52191.77211.7721
H71.09032.16193.07862.51953.08121.77211.7703
H81.09032.16193.07863.08122.51951.77211.7703

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 111.442 C1 C2 H4 112.732
C1 C2 H5 112.732 C2 C1 H6 109.012
C2 C1 H7 111.219 C2 C1 H8 111.219
Br3 C2 H4 104.837 Br3 C2 H5 104.837
H4 C2 H5 109.689 H6 C1 H7 108.381
H6 C1 H8 108.381 H7 C1 H8 108.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.296      
2 C -0.169      
3 Br -0.181      
4 H 0.114      
5 H 0.114      
6 H 0.096      
7 H 0.161      
8 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.468 -2.201 0.000 2.250
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.756 -0.027 0.000
y -0.027 9.245 0.000
z 0.000 0.000 6.339


<r2> (average value of r2) Å2
<r2> 106.279
(<r2>)1/2 10.309