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

using model chemistry: ROHF/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at ROHF/cc-pVTZ
 hartrees
Energy at 0K-2690.192775
Energy at 298.15K-2690.203475
HF Energy-2690.192775
Nuclear repulsion energy251.105600
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 ROHF/cc-pVTZ
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' 3270 2946 36.02      
2 A' 3245 2923 16.36      
3 A' 3222 2903 25.23      
4 A' 3162 2849 46.06      
5 A' 1623 1462 5.16      
6 A' 1610 1451 8.21      
7 A' 1549 1396 3.32      
8 A' 1370 1234 64.02      
9 A' 1282 1155 30.77      
10 A' 1153 1038 10.34      
11 A' 941 848 11.14      
12 A' 576 519 32.51      
13 A' 431 388 2.35      
14 A' 319 287 3.01      
15 A' 281 253 0.86      
16 A" 3250 2929 18.11      
17 A" 3219 2900 4.93      
18 A" 3155 2842 12.79      
19 A" 1604 1445 0.40      
20 A" 1599 1441 2.45      
21 A" 1536 1384 5.97      
22 A" 1476 1330 0.52      
23 A" 1223 1102 0.66      
24 A" 1029 927 0.03      
25 A" 1017 917 1.00      
26 A" 306 276 0.57      
27 A" 260 234 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 21852.8 cm-1
Scaled (by 0.901) Zero Point Vibrational Energy (zpe) 19689.4 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 ROHF/cc-pVTZ
ABC
0.26957 0.09646 0.07603

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.905 -0.440 0.000
Br2 -0.672 0.758 0.000
H3 1.732 0.250 0.000
C4 0.905 -1.270 1.269
C5 0.905 -1.270 -1.269
H6 0.039 -1.918 1.309
H7 1.797 -1.889 1.286
H8 0.907 -0.644 2.150
H9 0.039 -1.918 -1.309
H10 1.797 -1.889 -1.286
H11 0.907 -0.644 -2.150

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.97991.07731.51611.51612.15612.13262.15952.15612.13262.1595
Br21.97992.45702.86472.86473.06283.84073.01313.06283.84073.0131
H31.07732.45702.14572.14573.04652.49642.47023.04652.49642.4702
C41.51612.86472.14572.53771.08231.08581.08072.79582.77583.4755
C51.51612.86472.14572.53772.79582.77583.47551.08231.08581.0807
H62.15613.06283.04651.08232.79581.75781.75592.61863.13443.7872
H72.13263.84072.49641.08582.77581.75781.75733.13442.57183.7611
H82.15953.01312.47021.08073.47551.75591.75733.78723.76114.2998
H92.15613.06283.04652.79581.08232.61863.13443.78721.75781.7559
H102.13263.84072.49642.77581.08583.13442.57183.76111.75781.7573
H112.15953.01312.47023.47551.08073.78723.76114.29981.75591.7573

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 111.051 C1 C4 H7 108.980
C1 C4 H8 111.430 C1 C5 H9 111.051
C1 C5 H10 108.980 C1 C5 H11 111.430
Br2 C1 H3 102.955 Br2 C1 C4 109.337
Br2 C1 C5 109.337 H3 C1 C4 110.515
H3 C1 C5 110.515 C4 C1 C5 113.635
H6 C4 H7 108.338 H6 C4 H8 108.545
H7 C4 H8 108.410 H9 C5 H10 108.338
H9 C5 H11 108.545 H10 C5 H11 108.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.026      
2 Br -0.219      
3 H 0.140      
4 C -0.275      
5 C -0.275      
6 H 0.108      
7 H 0.099      
8 H 0.121      
9 H 0.108      
10 H 0.099      
11 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.995 -1.679 0.000 2.607
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.726 -0.478 0.000
y -0.478 -38.981 0.000
z 0.000 0.000 -38.763
Traceless
 xyz
x 1.145 -0.478 0.000
y -0.478 -0.736 0.000
z 0.000 0.000 -0.409
Polar
3z2-r2-0.818
x2-y21.255
xy-0.478
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 156.965
(<r2>)1/2 12.529