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

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-2687.771575
Energy at 298.15K-2687.782288
HF Energy-2687.771575
Nuclear repulsion energy252.613413
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 HF/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' 3277 2967 36.75      
2 A' 3254 2947 24.44      
3 A' 3237 2931 16.52      
4 A' 3172 2873 37.86      
5 A' 1622 1469 4.92      
6 A' 1611 1459 6.47      
7 A' 1548 1402 2.88      
8 A' 1372 1242 54.97      
9 A' 1281 1160 24.77      
10 A' 1152 1043 8.99      
11 A' 944 855 8.72      
12 A' 592 536 25.83      
13 A' 431 391 1.73      
14 A' 324 293 2.15      
15 A' 285 258 0.60      
16 A" 3265 2956 15.44      
17 A" 3236 2930 3.51      
18 A" 3166 2867 14.83      
19 A" 1602 1451 0.63      
20 A" 1600 1449 1.73      
21 A" 1535 1390 5.19      
22 A" 1472 1333 0.69      
23 A" 1221 1105 0.53      
24 A" 1027 930 0.00      
25 A" 1013 918 0.95      
26 A" 311 282 0.68      
27 A" 263 239 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 21906.2 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 19836.1 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 HF/6-31G(2df,p)
ABC
0.26875 0.09840 0.07720

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.894 -0.425 0.000
Br2 -0.664 0.750 0.000
H3 1.735 0.253 0.000
C4 0.894 -1.260 1.270
C5 0.894 -1.260 -1.270
H6 0.022 -1.903 1.311
H7 1.784 -1.885 1.289
H8 0.898 -0.631 2.153
H9 0.022 -1.903 -1.311
H10 1.784 -1.885 -1.289
H11 0.898 -0.631 -2.153

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.95151.08031.51991.51992.15942.14092.16252.15942.14092.1625
Br21.95152.44962.84252.84253.03783.82032.99683.03783.82032.9968
H31.08032.44962.14702.14703.04992.49722.47333.04992.49722.4733
C41.51992.84252.14702.54081.08451.08751.08312.79952.78073.4803
C51.51992.84252.14702.54082.79952.78073.48031.08451.08751.0831
H62.15943.03783.04991.08452.79951.76181.75872.62163.14033.7921
H72.14093.82032.49721.08752.78071.76181.76143.14032.57783.7684
H82.16252.99682.47331.08313.48031.75871.76143.79213.76844.3053
H92.15943.03783.04992.79951.08452.62163.14033.79211.76181.7587
H102.14093.82032.49722.78071.08753.14032.57783.76841.76181.7614
H112.16252.99682.47333.48031.08313.79213.76844.30531.75871.7614

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 110.910 C1 C4 H7 109.263
C1 C4 H8 111.248 C1 C5 H9 110.910
C1 C5 H10 109.263 C1 C5 H11 111.248
Br2 C1 H3 104.067 Br2 C1 C4 109.305
Br2 C1 C5 109.305 H3 C1 C4 110.168
H3 C1 C5 110.168 C4 C1 C5 113.405
H6 C4 H7 108.407 H6 C4 H8 108.460
H7 C4 H8 108.476 H9 C5 H10 108.407
H9 C5 H11 108.460 H10 C5 H11 108.476
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.180      
2 Br -0.106      
3 H 0.173      
4 C -0.397      
5 C -0.397      
6 H 0.154      
7 H 0.141      
8 H 0.159      
9 H 0.154      
10 H 0.141      
11 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.838 -1.548 0.000 2.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.341 -0.441 0.000
y -0.441 -38.567 0.000
z 0.000 0.000 -38.424
Traceless
 xyz
x 1.155 -0.441 0.000
y -0.441 -0.685 0.000
z 0.000 0.000 -0.470
Polar
3z2-r2-0.940
x2-y21.226
xy-0.441
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.807 -1.408 0.000
y -1.408 7.846 0.000
z 0.000 0.000 7.133


<r2> (average value of r2) Å2
<r2> 155.022
(<r2>)1/2 12.451