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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-2690.285211
Energy at 298.15K-2690.295727
HF Energy-2690.285211
Nuclear repulsion energy249.526464
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 B3LYP/6-31+G**
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 3031 24.30      
2 A' 3121 3010 14.00      
3 A' 3104 2993 12.40      
4 A' 3037 2928 36.76      
5 A' 1514 1460 7.66      
6 A' 1500 1446 12.28      
7 A' 1429 1378 6.43      
8 A' 1264 1219 51.07      
9 A' 1184 1142 31.42      
10 A' 1063 1025 10.65      
11 A' 891 859 9.32      
12 A' 546 527 21.44      
13 A' 423 407 3.18      
14 A' 302 291 2.77      
15 A' 283 273 1.16      
16 A" 3136 3024 11.85      
17 A" 3104 2993 3.49      
18 A" 3031 2922 12.71      
19 A" 1493 1439 0.32      
20 A" 1487 1434 3.22      
21 A" 1415 1364 12.09      
22 A" 1359 1311 1.33      
23 A" 1144 1103 1.30      
24 A" 953 919 0.31      
25 A" 946 912 1.42      
26 A" 297 287 0.56      
27 A" 256 247 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20712.2 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 19970.7 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 B3LYP/6-31+G**
ABC
0.26726 0.09536 0.07540

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.464 -0.916 0.000
Br2 -0.067 1.016 0.000
H3 1.554 -0.874 0.000
C4 -0.067 -1.563 1.270
C5 -0.067 -1.563 -1.270
H6 -1.160 -1.525 1.294
H7 0.242 -2.616 1.297
H8 0.316 -1.070 2.167
H9 -1.160 -1.525 -1.294
H10 0.242 -2.616 -1.297
H11 0.316 -1.070 -2.167

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.00341.09111.52061.52062.16362.14922.17762.16362.14922.1776
Br22.00342.48952.87422.87423.05323.86843.03203.05323.86843.0320
H31.09112.48952.17142.17143.07652.53712.50383.07652.53712.5038
C41.52062.87422.17142.53981.09421.09781.09272.78712.79143.4932
C51.52062.87422.17142.53982.78712.79143.49321.09421.09781.0927
H62.16363.05323.07651.09422.78711.77691.77422.58703.14113.7895
H72.14923.86842.53711.09782.79141.77691.77553.14112.59333.7937
H82.17763.03202.50381.09273.49321.77421.77553.78953.79374.3343
H92.16363.05323.07652.78711.09422.58703.14113.78951.77691.7742
H102.14923.86842.53712.79141.09783.14112.59333.79371.77691.7755
H112.17763.03202.50383.49321.09273.78953.79374.33431.77421.7755

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 110.611 C1 C4 H7 109.263
C1 C4 H8 111.830 C1 C5 H9 110.611
C1 C5 H10 109.263 C1 C5 H11 111.830
Br2 C1 H3 103.133 Br2 C1 C4 108.513
Br2 C1 C5 108.513 H3 C1 C4 111.427
H3 C1 C5 111.427 C4 C1 C5 113.253
H6 C4 H7 108.310 H6 C4 H8 108.442
H7 C4 H8 108.292 H9 C5 H10 108.310
H9 C5 H11 108.442 H10 C5 H11 108.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.085      
2 Br -0.171      
3 H 0.174      
4 C -0.440      
5 C -0.440      
6 H 0.165      
7 H 0.149      
8 H 0.167      
9 H 0.165      
10 H 0.149      
11 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.496 -2.406 0.000 2.457
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.007 -0.820 0.000
y -0.820 -38.040 0.000
z 0.000 0.000 -39.034
Traceless
 xyz
x -0.471 -0.820 0.000
y -0.820 0.981 0.000
z 0.000 0.000 -0.510
Polar
3z2-r2-1.020
x2-y2-0.968
xy-0.820
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.204 -0.301 0.000
y -0.301 10.431 0.000
z 0.000 0.000 8.012


<r2> (average value of r2) Å2
<r2> 158.381
(<r2>)1/2 12.585