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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-2679.947166
Energy at 298.15K-2679.957630
HF Energy-2679.947166
Nuclear repulsion energy249.640347
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
4/u)
Dep P Dep U
1 A' 3151 3031 25.16      
2 A' 3126 3007 15.24      
3 A' 3110 2992 5.90      
4 A' 3050 2934 26.40      
5 A' 1570 1510 9.10      
6 A' 1558 1499 10.96      
7 A' 1472 1416 6.61      
8 A' 1288 1239 43.65      
9 A' 1212 1166 31.85      
10 A' 1090 1049 8.65      
11 A' 878 845 7.21      
12 A' 556 535 14.30      
13 A' 408 392 1.23      
14 A' 294 283 2.29      
15 A' 262 252 0.53      
16 A" 3141 3021 10.09      
17 A" 3113 2994 3.49      
18 A" 3044 2929 8.38      
19 A" 1550 1491 1.11      
20 A" 1545 1487 3.81      
21 A" 1457 1401 14.18      
22 A" 1385 1332 2.24      
23 A" 1142 1098 1.94      
24 A" 990 952 2.98      
25 A" 971 934 0.06      
26 A" 284 273 0.63      
27 A" 245 235 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20945.3 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 20149.4 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
0.26487 0.09584 0.07556

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 0.468 -0.908 0.000
Br2 -0.067 1.012 0.000
H3 1.559 -0.882 0.000
C4 -0.067 -1.561 1.277
C5 -0.067 -1.561 -1.277
H6 -1.161 -1.520 1.291
H7 0.247 -2.612 1.309
H8 0.314 -1.053 2.167
H9 -1.161 -1.520 -1.291
H10 0.247 -2.612 -1.309
H11 0.314 -1.053 -2.167

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.99371.09131.53101.53102.16672.16002.17712.16672.16002.1771
Br21.99372.49642.87262.87263.04573.86633.01763.04573.86633.0176
H31.09132.49642.17662.17663.07762.53572.50473.07762.53572.5047
C41.53102.87262.17662.55461.09411.09781.09312.79202.80933.5022
C51.53102.87262.17662.55462.79202.80933.50221.09411.09781.0931
H62.16673.04573.07761.09412.79201.78141.77772.58303.15193.7887
H72.16003.86632.53571.09782.80931.78141.78113.15192.61763.8100
H82.17713.01762.50471.09313.50221.77771.78113.78873.81004.3337
H92.16673.04573.07762.79201.09412.58303.15193.78871.78141.7777
H102.16003.86632.53572.80931.09783.15192.61763.81001.78141.7811
H112.17713.01762.50473.50221.09313.78873.81004.33371.77771.7811

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 110.143 C1 C4 H7 109.402
C1 C4 H8 111.029 C1 C5 H9 110.143
C1 C5 H10 109.402 C1 C5 H11 111.029
Br2 C1 H3 104.182 Br2 C1 C4 108.465
Br2 C1 C5 108.465 H3 C1 C4 111.093
H3 C1 C5 111.093 C4 C1 C5 113.089
H6 C4 H7 108.720 H6 C4 H8 108.734
H7 C4 H8 108.767 H9 C5 H10 108.720
H9 C5 H11 108.734 H10 C5 H11 108.767
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 -0.282      
2 Br -0.093      
3 H 0.235      
4 C -0.542      
5 C -0.542      
6 H 0.208      
7 H 0.194      
8 H 0.211      
9 H 0.208      
10 H 0.194      
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
  0.412 -2.003 0.000 2.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.960 -0.720 0.000
y -0.720 -36.878 0.000
z 0.000 0.000 -37.974
Traceless
 xyz
x -0.534 -0.720 0.000
y -0.720 1.089 0.000
z 0.000 0.000 -0.555
Polar
3z2-r2-1.110
x2-y2-1.082
xy-0.720
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.498 -0.414 0.000
y -0.414 8.601 0.000
z 0.000 0.000 6.166


<r2> (average value of r2) Å2
<r2> 157.497
(<r2>)1/2 12.550