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

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-2690.224937
Energy at 298.15K-2690.235439
HF Energy-2690.224937
Nuclear repulsion energy249.314835
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 mPW1PW91/6-31G
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' 3195 3024 27.87      
2 A' 3168 2999 18.73      
3 A' 3152 2984 6.05      
4 A' 3073 2909 27.85      
5 A' 1552 1469 12.85      
6 A' 1544 1461 12.22      
7 A' 1479 1400 8.66      
8 A' 1289 1220 41.54      
9 A' 1221 1156 47.09      
10 A' 1087 1029 9.54      
11 A' 923 874 8.80      
12 A' 541 512 21.94      
13 A' 411 389 2.20      
14 A' 296 280 3.78      
15 A' 270 256 0.71      
16 A" 3186 3016 10.72      
17 A" 3156 2987 3.82      
18 A" 3069 2905 11.98      
19 A" 1533 1451 0.90      
20 A" 1530 1448 4.98      
21 A" 1463 1385 20.66      
22 A" 1398 1324 2.22      
23 A" 1191 1127 3.29      
24 A" 993 940 0.42      
25 A" 987 934 2.95      
26 A" 293 277 0.94      
27 A" 246 232 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 21122.6 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 19994.6 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 mPW1PW91/6-31G
ABC
0.26563 0.09557 0.07542

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.468 -0.938 0.000
Br2 -0.067 1.015 0.000
H3 1.558 -0.888 0.000
C4 -0.067 -1.556 1.274
C5 -0.067 -1.556 -1.274
H6 -1.159 -1.520 1.293
H7 0.244 -2.606 1.334
H8 0.309 -1.036 2.157
H9 -1.159 -1.520 -1.293
H10 0.244 -2.606 -1.334
H11 0.309 -1.036 -2.157

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.02411.09061.51381.51382.15852.14732.16562.15852.14732.1656
Br22.02412.50202.86882.86883.04763.87043.00033.04763.87043.0003
H31.09062.50202.16982.16983.07432.54022.49733.07432.54022.4973
C41.51382.86882.16982.54791.09291.09641.09162.78992.82803.4908
C51.51382.86882.16982.54792.78992.82803.49081.09291.09641.0916
H62.15853.04763.07431.09292.78991.77471.77072.58613.16973.7808
H72.14733.87042.54021.09642.82801.77471.77353.16972.66723.8281
H82.16563.00032.49731.09163.49081.77071.77353.78083.82814.3149
H92.15853.04763.07432.78991.09292.58613.16973.78081.77471.7707
H102.14733.87042.54022.82801.09643.16972.66723.82811.77471.7735
H112.16563.00032.49733.49081.09163.78083.82814.31491.77071.7735

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 110.760 C1 C4 H7 109.665
C1 C4 H8 111.412 C1 C5 H9 110.760
C1 C5 H10 109.665 C1 C5 H11 111.412
Br2 C1 H3 102.739 Br2 C1 C4 107.485
Br2 C1 C5 107.485 H3 C1 C4 111.813
H3 C1 C5 111.813 C4 C1 C5 114.612
H6 C4 H7 108.310 H6 C4 H8 108.300
H7 C4 H8 108.303 H9 C5 H10 108.310
H9 C5 H11 108.300 H10 C5 H11 108.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.406      
2 Br -0.029      
3 H 0.231      
4 C -0.452      
5 C -0.452      
6 H 0.188      
7 H 0.175      
8 H 0.191      
9 H 0.188      
10 H 0.175      
11 H 0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.520 -2.541 0.000 2.593
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.047 -0.634 0.000
y -0.634 -37.335 0.000
z 0.000 0.000 -37.868
Traceless
 xyz
x -0.445 -0.634 0.000
y -0.634 0.622 0.000
z 0.000 0.000 -0.177
Polar
3z2-r2-0.354
x2-y2-0.711
xy-0.634
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.065 -0.599 0.000
y -0.599 8.856 0.000
z 0.000 0.000 5.691


<r2> (average value of r2) Å2
<r2> 157.695
(<r2>)1/2 12.558