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

using model chemistry: B3LYP/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 B3LYP/6-31G*
 hartrees
Energy at 0K-2690.252860
Energy at 298.15K-2690.263261
HF Energy-2690.252860
Nuclear repulsion energy248.992707
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/6-31G*
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' 3151 3026 28.22      
2 A' 3127 3003 21.57      
3 A' 3111 2988 7.14      
4 A' 3048 2927 32.92      
5 A' 1534 1473 5.87      
6 A' 1521 1461 8.21      
7 A' 1448 1391 3.21      
8 A' 1265 1215 47.94      
9 A' 1193 1145 36.57      
10 A' 1063 1021 7.30      
11 A' 892 856 8.25      
12 A' 533 511 19.99      
13 A' 404 388 2.18      
14 A' 294 282 2.90      
15 A' 260 250 0.84      
16 A" 3145 3020 11.55      
17 A" 3114 2990 3.59      
18 A" 3042 2921 10.38      
19 A" 1514 1454 0.41      
20 A" 1509 1449 2.29      
21 A" 1434 1377 8.67      
22 A" 1376 1322 2.04      
23 A" 1153 1108 1.25      
24 A" 960 922 0.31      
25 A" 955 917 1.29      
26 A" 285 274 0.72      
27 A" 240 230 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 20785.5 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 19960.3 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 B3LYP/6-31G*
ABC
0.26557 0.09497 0.07493

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.453 -0.921 0.000
Br2 -0.066 1.018 0.000
H3 1.543 -0.878 0.000
C4 -0.066 -1.566 1.276
C5 -0.066 -1.566 -1.276
H6 -1.160 -1.544 1.310
H7 0.258 -2.616 1.311
H8 0.317 -1.059 2.166
H9 -1.160 -1.544 -1.310
H10 0.258 -2.616 -1.311
H11 0.317 -1.059 -2.166

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.00781.09161.52111.52112.16872.15122.17422.16872.15122.1742
Br22.00782.48712.88272.88273.07873.87673.02493.07873.87673.0249
H31.09162.48712.16602.16603.07672.52802.49523.07672.52802.4952
C41.52112.88272.16602.55281.09471.09841.09332.80842.81093.5003
C51.52112.88272.16602.55282.80842.81093.50031.09471.09841.0933
H62.16873.07873.07671.09472.80841.77681.77452.62023.16683.8076
H72.15123.87672.52801.09842.81091.77681.77703.16682.62263.8101
H82.17423.02492.49521.09333.50031.77451.77703.80763.81014.3313
H92.16873.07873.07672.80841.09472.62023.16683.80761.77681.7745
H102.15123.87672.52802.81091.09843.16682.62263.81011.77681.7770
H112.17423.02492.49523.50031.09333.80763.81014.33131.77451.7770

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 110.955 C1 C4 H7 109.353
C1 C4 H8 111.480 C1 C5 H9 110.955
C1 C5 H10 109.353 C1 C5 H11 111.480
Br2 C1 H3 102.691 Br2 C1 C4 108.767
Br2 C1 C5 108.767 H3 C1 C4 110.930
H3 C1 C5 110.930 C4 C1 C5 114.092
H6 C4 H7 108.227 H6 C4 H8 108.389
H7 C4 H8 108.345 H9 C5 H10 108.227
H9 C5 H11 108.389 H10 C5 H11 108.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.112      
2 Br -0.171      
3 H 0.181      
4 C -0.435      
5 C -0.435      
6 H 0.166      
7 H 0.151      
8 H 0.169      
9 H 0.166      
10 H 0.151      
11 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.464 -2.267 0.000 2.314
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.029 -0.708 0.000
y -0.708 -37.026 0.000
z 0.000 0.000 -38.033
Traceless
 xyz
x -0.499 -0.708 0.000
y -0.708 1.005 0.000
z 0.000 0.000 -0.506
Polar
3z2-r2-1.012
x2-y2-1.002
xy-0.708
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.981 -0.377 0.000
y -0.377 9.196 0.000
z 0.000 0.000 6.716


<r2> (average value of r2) Å2
<r2> 158.478
(<r2>)1/2 12.589