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All results from a given calculation for CH3CH2CH2Br (n-propyl bromide)

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-33.624703
Energy at 298.15K-33.635265
HF Energy-33.624703
Nuclear repulsion energy68.170765
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 HF/CEP-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' 3305 2980 60.23      
2 A' 3289 2965 75.43      
3 A' 3250 2930 20.31      
4 A' 3204 2888 60.87      
5 A' 1648 1485 6.80      
6 A' 1633 1472 3.30      
7 A' 1618 1459 4.85      
8 A' 1561 1407 3.02      
9 A' 1502 1354 10.64      
10 A' 1382 1246 82.78      
11 A' 1215 1095 4.65      
12 A' 1117 1007 2.44      
13 A' 973 877 7.35      
14 A' 659 594 56.10      
15 A' 315 284 6.70      
16 A' 223 201 2.49      
17 A" 3393 3058 34.64      
18 A" 3310 2983 93.19      
19 A" 3276 2953 26.73      
20 A" 1635 1473 10.86      
21 A" 1431 1290 0.03      
22 A" 1350 1217 0.21      
23 A" 1153 1039 3.29      
24 A" 936 844 0.06      
25 A" 811 731 5.77      
26 A" 246 221 0.06      
27 A" 114 103 1.27      

Unscaled Zero Point Vibrational Energy (zpe) 22274.2 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 20077.9 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 HF/CEP-31G
ABC
0.83350 0.05243 0.05073

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.867 0.000
C2 1.527 0.708 0.000
C3 2.212 2.096 0.000
Br4 -0.929 -0.925 0.000
H5 -0.369 1.364 0.889
H6 -0.369 1.364 -0.889
H7 1.835 0.141 0.876
H8 1.835 0.141 -0.876
H9 3.296 1.985 0.000
H10 1.935 2.675 -0.883
H11 1.935 2.675 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.53522.53042.01891.08271.08272.15912.15913.48032.79092.7909
C21.53521.54842.94942.19392.19391.08811.08812.18212.19432.1943
C32.53041.54844.35842.82582.82582.17602.17601.08961.09111.0911
Br42.01892.94944.35842.51852.51853.08923.08925.13054.68404.6840
H51.08272.19392.82582.51851.77742.52013.07663.82153.18772.6502
H61.08272.19392.82582.51851.77743.07662.52013.82152.65023.1877
H72.15911.08812.17603.08922.52013.07661.75242.51123.08642.5362
H82.15911.08812.17603.08923.07662.52011.75242.51122.53623.0864
H93.48032.18211.08965.13053.82153.82152.51122.51121.76261.7626
H102.79092.19431.09114.68403.18772.65023.08642.53621.76261.7652
H112.79092.19431.09114.68402.65023.18772.53623.08641.76261.7652

picture of n-propyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.288 C1 C2 H7 109.602
C1 C2 H8 109.602 C2 C1 Br4 111.443
C2 C1 H5 112.724 C2 C1 H6 112.724
C2 C3 H9 110.414 C2 C3 H10 111.288
C2 C3 H11 111.288 C3 C2 H7 110.016
C3 C2 H8 110.016 Br4 C1 H5 104.502
Br4 C1 H6 104.502 H5 C1 H6 110.334
H7 C2 H8 107.265 H9 C3 H10 107.861
H9 C3 H11 107.861 H10 C3 H11 107.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.453      
2 C -0.027      
3 C -0.331      
4 Br -0.051      
5 H 0.161      
6 H 0.161      
7 H 0.104      
8 H 0.104      
9 H 0.142      
10 H 0.095      
11 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.695 2.499 0.000 3.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.159 -0.482 0.000
y -0.482 -35.357 0.000
z 0.000 0.000 -35.458
Traceless
 xyz
x -0.751 -0.482 0.000
y -0.482 0.452 0.000
z 0.000 0.000 0.300
Polar
3z2-r20.599
x2-y2-0.802
xy-0.482
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.774 2.530 0.000
y 2.530 8.323 0.000
z 0.000 0.000 4.470


<r2> (average value of r2) Å2
<r2> 137.828
(<r2>)1/2 11.740