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All results from a given calculation for CH3CHBrCH3 (i-propyl bromide)

using model chemistry: CCD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-2688.474043
Energy at 298.15K-2688.484616
HF Energy-2687.771236
Nuclear repulsion energy253.125390
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/6-31G(2df,p)
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' 3199 3030 14.51      
2 A' 3179 3011 25.66      
3 A' 3150 2984 1.03      
4 A' 3095 2931 17.40      
5 A' 1538 1457 6.01      
6 A' 1528 1447 7.34      
7 A' 1454 1378 4.26      
8 A' 1297 1229 39.83      
9 A' 1209 1145 16.98      
10 A' 1087 1029 7.85      
11 A' 923 874 4.09      
12 A' 596 564 10.22      
13 A' 410 388 0.75      
14 A' 311 295 0.74      
15 A' 275 261 0.32      
16 A" 3195 3026 7.26      
17 A" 3173 3005 0.83      
18 A" 3091 2928 9.17      
19 A" 1518 1438 0.91      
20 A" 1516 1436 1.77      
21 A" 1440 1364 8.20      
22 A" 1384 1311 0.54      
23 A" 1171 1109 0.57      
24 A" 977 926 0.00      
25 A" 954 904 1.25      
26 A" 298 282 0.45      
27 A" 254 240 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21110.8 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 19996.1 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 CCD/6-31G(2df,p)
ABC
0.26898 0.09909 0.07774

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.892 -0.412 0.000
Br2 -0.662 0.745 0.000
H3 1.746 0.266 0.000
C4 0.892 -1.255 1.268
C5 0.892 -1.255 -1.268
H6 0.012 -1.900 1.298
H7 1.785 -1.886 1.287
H8 0.891 -0.628 2.160
H9 0.012 -1.900 -1.298
H10 1.785 -1.886 -1.287
H11 0.891 -0.628 -2.160

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.93811.09001.52241.52242.16222.15132.17052.16222.15132.1705
Br21.93812.45602.83282.83283.02293.81752.99383.02293.81752.9938
H31.09002.45602.15602.15603.06322.50792.48913.06322.50792.4891
C41.52242.83282.15602.53501.09181.09391.09032.78812.77863.4840
C51.52242.83282.15602.53502.78812.77863.48401.09181.09391.0903
H62.16223.02293.06321.09182.78811.77331.76972.59613.13463.7876
H72.15133.81752.50791.09392.77861.77331.77363.13462.57353.7765
H82.17052.99382.48911.09033.48401.76971.77363.78763.77654.3194
H92.16223.02293.06322.78811.09182.59613.13463.78761.77331.7697
H102.15133.81752.50792.77861.09393.13462.57353.77651.77331.7736
H112.17052.99382.48913.48401.09033.78763.77654.31941.76971.7736

picture of i-propyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H6 110.525 C1 C4 H7 109.539
C1 C4 H8 111.278 C1 C5 H9 110.525
C1 C5 H10 109.539 C1 C5 H11 111.278
Br2 C1 H3 104.914 Br2 C1 C4 109.307
Br2 C1 C5 109.307 H3 C1 C4 110.139
H3 C1 C5 110.139 C4 C1 C5 112.733
H6 C4 H7 108.450 H6 C4 H8 108.388
H7 C4 H8 108.591 H9 C5 H10 108.450
H9 C5 H11 108.388 H10 C5 H11 108.591
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability