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

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-2651.833935
Energy at 298.15K 
HF Energy-2651.142676
Nuclear repulsion energy165.222495
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=FULL/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' 3150 2987 25.60      
2 A' 3134 2972 2.06      
3 A' 3080 2920 18.49      
4 A' 1530 1450 1.91      
5 A' 1518 1439 1.40      
6 A' 1442 1368 4.34      
7 A' 1315 1247 47.34      
8 A' 1108 1051 0.03      
9 A' 1006 954 10.47      
10 A' 605 574 11.54      
11 A' 293 278 1.23      
12 A" 3189 3023 9.16      
13 A" 3152 2988 7.07      
14 A" 1521 1442 8.35      
15 A" 1296 1229 0.31      
16 A" 1062 1007 0.19      
17 A" 783 742 3.05      
18 A" 283 268 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 14733.7 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 13969.1 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=FULL/cc-pVTZ
ABC
1.01638 0.12829 0.11894

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.572 -2.012 0.000
C2 0.598 -1.061 0.000
Br3 0.000 0.787 0.000
H4 1.213 -1.171 0.882
H5 1.213 -1.171 -0.882
H6 -0.207 -3.037 0.000
H7 -1.189 -1.865 0.880
H8 -1.189 -1.865 -0.880

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.50812.85702.16132.16131.08811.08501.0850
C21.50811.94201.08071.08072.13462.14862.1486
Br32.85701.94202.46672.46673.83003.03683.0368
H42.16131.08072.46671.76302.50552.50093.0589
H52.16131.08072.46671.76302.50553.05892.5009
H61.08812.13463.83002.50552.50551.76431.7643
H71.08502.14863.03682.50093.05891.76431.7597
H81.08502.14863.03683.05892.50091.76431.7597

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 111.186 C1 C2 H4 112.147
C1 C2 H5 112.147 C2 C1 H6 109.554
C2 C1 H7 110.854 C2 C1 H8 110.854
Br3 C2 H4 105.838 Br3 C2 H5 105.838
H4 C2 H5 109.309 H6 C1 H7 108.569
H6 C1 H8 108.569 H7 C1 H8 108.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability