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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-2679.709233
Energy at 298.15K-2679.719708
HF Energy-2679.709233
Nuclear repulsion energy247.782852
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/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3155 3044 29.58      
2 A' 3130 3020 7.98      
3 A' 3112 3003 9.81      
4 A' 3049 2942 25.45      
5 A' 1570 1515 8.98      
6 A' 1557 1502 9.90      
7 A' 1473 1421 6.29      
8 A' 1290 1245 46.29      
9 A' 1213 1171 37.91      
10 A' 1088 1050 9.69      
11 A' 889 858 8.48      
12 A' 551 531 15.65      
13 A' 409 395 1.23      
14 A' 297 287 2.48      
15 A' 259 250 0.54      
16 A" 3141 3030 11.58      
17 A" 3112 3003 5.38      
18 A" 3043 2936 7.56      
19 A" 1549 1495 1.95      
20 A" 1544 1490 3.24      
21 A" 1458 1407 13.59      
22 A" 1387 1338 2.20      
23 A" 1145 1105 3.76      
24 A" 990 955 3.03      
25 A" 972 938 0.06      
26 A" 285 275 0.73      
27 A" 243 234 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 20955.6 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 20220.0 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/3-21G
ABC
0.26625 0.09340 0.07408

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.462 -0.925 0.000
Br2 -0.067 1.027 0.000
H3 1.552 -0.895 0.000
C4 -0.067 -1.581 1.274
C5 -0.067 -1.581 -1.274
H6 -1.160 -1.546 1.295
H7 0.252 -2.632 1.297
H8 0.317 -1.080 2.166
H9 -1.160 -1.546 -1.295
H10 0.252 -2.632 -1.297
H11 0.317 -1.080 -2.166

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.02231.09051.52761.52762.16662.15412.17662.16662.15412.1766
Br22.02232.51232.90282.90283.08133.89503.04603.08133.89503.0460
H31.09052.51232.17142.17143.07532.52832.50033.07532.52832.5003
C41.52762.90282.17142.54821.09421.09801.09312.79252.79573.4979
C51.52762.90282.17142.54822.79252.79573.49791.09421.09801.0931
H62.16663.08133.07531.09422.79251.78091.77742.59033.14503.7923
H72.15413.89502.52831.09802.79571.78091.78033.14502.59413.7958
H82.17663.04602.50031.09313.49791.77741.78033.79233.79584.3325
H92.16663.08133.07532.79251.09422.59033.14503.79231.78091.7774
H102.15413.89502.52832.79571.09803.14502.59413.79581.78091.7803
H112.17663.04602.50033.49791.09313.79233.79584.33251.77741.7803

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 110.367 C1 C4 H7 109.160
C1 C4 H8 111.224 C1 C5 H9 110.367
C1 C5 H10 109.160 C1 C5 H11 111.224
Br2 C1 H3 103.544 Br2 C1 C4 108.921
Br2 C1 C5 108.921 H3 C1 C4 110.973
H3 C1 C5 110.973 C4 C1 C5 113.041
H6 C4 H7 108.658 H6 C4 H8 108.699
H7 C4 H8 108.678 H9 C5 H10 108.658
H9 C5 H11 108.699 H10 C5 H11 108.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.441      
2 Br 0.010      
3 H 0.249      
4 C -0.525      
5 C -0.525      
6 H 0.209      
7 H 0.197      
8 H 0.211      
9 H 0.209      
10 H 0.197      
11 H 0.211      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.442 -2.138 0.000 2.183
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.133 -0.595 0.000
y -0.595 -37.251 0.000
z 0.000 0.000 -38.069
Traceless
 xyz
x -0.473 -0.595 0.000
y -0.595 0.849 0.000
z 0.000 0.000 -0.377
Polar
3z2-r2-0.753
x2-y2-0.881
xy-0.595
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.808 -0.571 0.000
y -0.571 8.521 0.000
z 0.000 0.000 5.434


<r2> (average value of r2) Å2
<r2> 159.944
(<r2>)1/2 12.647