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

using model chemistry: CCD/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 CCD/cc-pVTZ
 hartrees
Energy at 0K-2651.756500
Energy at 298.15K 
HF Energy-2651.142608
Nuclear repulsion energy164.759273
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/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' 3144 2936 23.62      
2 A' 3128 2921 4.11      
3 A' 3066 2863 17.29      
4 A' 1520 1419 1.89      
5 A' 1508 1408 1.25      
6 A' 1434 1339 3.81      
7 A' 1311 1225 47.50      
8 A' 1101 1028 0.05      
9 A' 999 933 10.55      
10 A' 608 568 11.02      
11 A' 293 274 1.20      
12 A" 3194 2982 8.96      
13 A" 3157 2948 7.09      
14 A" 1509 1409 8.16      
15 A" 1289 1203 0.34      
16 A" 1057 987 0.19      
17 A" 781 730 3.03      
18 A" 265 248 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 14682.8 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 13709.3 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 CCD/cc-pVTZ
ABC
1.01108 0.12751 0.11822

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.573 -2.020 0.000
C2 0.599 -1.061 0.000
Br3 0.000 0.789 0.000
H4 1.218 -1.172 0.884
H5 1.218 -1.172 -0.884
H6 -0.205 -3.047 0.000
H7 -1.194 -1.876 0.882
H8 -1.194 -1.876 -0.882

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6 H7 H8
C11.51452.86682.17022.17021.09141.08831.0883
C21.51451.94481.08491.08492.14252.15832.1583
Br32.86681.94482.47212.47213.84173.05103.0510
H42.17021.08492.47211.76822.51452.51293.0716
H52.17021.08492.47211.76822.51453.07162.5129
H61.09142.14253.84172.51452.51451.76851.7685
H71.08832.15833.05102.51293.07161.76851.7646
H81.08832.15833.05103.07162.51291.76851.7646

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 111.328 C1 C2 H4 112.150
C1 C2 H5 112.150 C2 C1 H6 109.542
C2 C1 H7 110.983 C2 C1 H8 110.983
Br3 C2 H4 105.840 Br3 C2 H5 105.840
H4 C2 H5 109.152 H6 C1 H7 108.460
H6 C1 H8 108.460 H7 C1 H8 108.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability