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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-2690.493482
Energy at 298.15K-2690.503902
HF Energy-2690.493482
Nuclear repulsion energy251.775166
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 B1B95/6-31G*
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' 3187 3026 21.43      
2 A' 3162 3002 27.60      
3 A' 3145 2985 1.73      
4 A' 3078 2922 27.04      
5 A' 1531 1454 7.31      
6 A' 1520 1443 9.70      
7 A' 1443 1370 5.29      
8 A' 1268 1203 45.16      
9 A' 1193 1133 31.52      
10 A' 1064 1011 9.07      
11 A' 912 866 6.86      
12 A' 550 522 18.27      
13 A' 397 377 1.80      
14 A' 295 280 1.96      
15 A' 262 249 0.72      
16 A" 3183 3022 9.64      
17 A" 3154 2994 2.23      
18 A" 3074 2919 11.47      
19 A" 1511 1434 0.28      
20 A" 1508 1431 2.80      
21 A" 1432 1359 12.37      
22 A" 1373 1303 0.80      
23 A" 1170 1111 0.95      
24 A" 963 914 0.03      
25 A" 948 900 1.82      
26 A" 285 270 0.77      
27 A" 242 230 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 20925.7 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 19864.8 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 B1B95/6-31G*
ABC
0.26905 0.09766 0.07687

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.453 -0.902 0.000
Br2 -0.066 1.003 0.000
H3 1.542 -0.865 0.000
C4 -0.066 -1.545 1.267
C5 -0.066 -1.545 -1.267
H6 -1.157 -1.518 1.296
H7 0.253 -2.592 1.302
H8 0.315 -1.039 2.155
H9 -1.157 -1.518 -1.296
H10 0.253 -2.592 -1.302
H11 0.315 -1.039 -2.155

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.97401.08961.51241.51242.15602.14322.16362.15602.14322.1636
Br21.97402.46412.84572.84573.03713.83712.99273.03713.83712.9927
H31.08962.46412.15662.15663.06382.51792.48593.06382.51792.4859
C41.51242.84572.15662.53371.09211.09511.09062.78532.79263.4798
C51.51242.84572.15662.53372.78532.79263.47981.09211.09511.0906
H62.15603.03713.06381.09212.78531.77291.77002.59113.14513.7816
H72.14323.83712.51791.09512.79261.77291.77323.14512.60453.7907
H82.16362.99272.48591.09063.47981.77001.77323.78163.79074.3098
H92.15603.03713.06382.78531.09212.59113.14513.78161.77291.7700
H102.14323.83712.51792.79261.09513.14512.60453.79071.77291.7732
H112.16362.99272.48593.47981.09063.78163.79074.30981.77001.7732

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 110.714 C1 C4 H7 109.517
C1 C4 H8 111.413 C1 C5 H9 110.714
C1 C5 H10 109.517 C1 C5 H11 111.413
Br2 C1 H3 103.273 Br2 C1 C4 108.697
Br2 C1 C5 108.697 H3 C1 C4 110.905
H3 C1 C5 110.905 C4 C1 C5 113.786
H6 C4 H7 108.306 H6 C4 H8 108.372
H7 C4 H8 108.437 H9 C5 H10 108.306
H9 C5 H11 108.372 H10 C5 H11 108.437
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.172      
2 Br -0.156      
3 H 0.206      
4 C -0.479      
5 C -0.479      
6 H 0.183      
7 H 0.169      
8 H 0.188      
9 H 0.183      
10 H 0.169      
11 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.458 -2.200 0.000 2.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.816 -0.720 0.000
y -0.720 -36.813 0.000
z 0.000 0.000 -37.841
Traceless
 xyz
x -0.490 -0.720 0.000
y -0.720 1.016 0.000
z 0.000 0.000 -0.526
Polar
3z2-r2-1.052
x2-y2-1.004
xy-0.720
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.967 -0.359 0.000
y -0.359 9.003 0.000
z 0.000 0.000 6.688


<r2> (average value of r2) Å2
<r2> 155.216
(<r2>)1/2 12.459