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

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-2689.512746
Energy at 298.15K-2689.523117
HF Energy-2689.512746
Nuclear repulsion energy247.102283
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 PBEPBE/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' 3103 3060 28.74      
2 A' 3073 3031 24.97      
3 A' 3056 3013 2.96      
4 A' 2982 2941 29.48      
5 A' 1502 1481 10.98      
6 A' 1491 1471 11.80      
7 A' 1423 1403 7.42      
8 A' 1237 1220 35.26      
9 A' 1174 1158 50.92      
10 A' 1042 1028 8.21      
11 A' 891 878 9.18      
12 A' 519 512 19.27      
13 A' 399 393 2.22      
14 A' 285 281 3.95      
15 A' 261 258 1.01      
16 A" 3096 3053 11.52      
17 A" 3063 3021 4.13      
18 A" 2978 2937 11.52      
19 A" 1483 1462 0.94      
20 A" 1477 1457 3.85      
21 A" 1407 1388 18.65      
22 A" 1347 1329 3.99      
23 A" 1150 1134 4.23      
24 A" 956 943 1.45      
25 A" 950 936 1.53      
26 A" 281 277 1.04      
27 A" 239 235 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 20431.3 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 20149.3 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 PBEPBE/6-31G
ABC
0.26183 0.09379 0.07410

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.472 -0.953 0.000
Br2 -0.068 1.024 0.000
H3 1.571 -0.898 0.000
C4 -0.068 -1.569 1.283
C5 -0.068 -1.569 -1.283
H6 -1.170 -1.534 1.301
H7 0.247 -2.628 1.346
H8 0.310 -1.042 2.173
H9 -1.170 -1.534 -1.301
H10 0.247 -2.628 -1.346
H11 0.310 -1.042 -2.173

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.04911.10101.52201.52202.17322.16142.18082.17322.16142.1808
Br22.04912.52582.89332.89333.07403.90553.02253.07403.90553.0225
H31.10102.52582.18682.18683.09972.56172.51643.09972.56172.5164
C41.52202.89332.18682.56561.10271.10671.10122.80882.85193.5161
C51.52202.89332.18682.56562.80882.85193.51611.10271.10671.1012
H62.17323.07403.09971.10272.80881.79041.78682.60113.19533.8075
H72.16143.90552.56171.10672.85191.79041.78953.19532.69293.8608
H82.18083.02252.51641.10123.51611.78681.78953.80753.86084.3459
H92.17323.07403.09972.80881.10272.60113.19533.80751.79041.7868
H102.16143.90552.56172.85191.10673.19532.69293.86081.79041.7895
H112.18083.02252.51643.51611.10123.80753.86084.34591.78681.7895

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 110.771 C1 C4 H7 109.608
C1 C4 H8 111.469 C1 C5 H9 110.771
C1 C5 H10 109.608 C1 C5 H11 111.469
Br2 C1 H3 102.399 Br2 C1 C4 107.311
Br2 C1 C5 107.311 H3 C1 C4 111.965
H3 C1 C5 111.965 C4 C1 C5 114.887
H6 C4 H7 108.266 H6 C4 H8 108.342
H7 C4 H8 108.294 H9 C5 H10 108.266
H9 C5 H11 108.342 H10 C5 H11 108.294
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.368      
2 Br -0.035      
3 H 0.212      
4 C -0.418      
5 C -0.418      
6 H 0.175      
7 H 0.161      
8 H 0.177      
9 H 0.175      
10 H 0.161      
11 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.494 -2.459 0.000 2.509
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.195 -0.634 0.000
y -0.634 -37.306 0.000
z 0.000 0.000 -37.970
Traceless
 xyz
x -0.558 -0.634 0.000
y -0.634 0.777 0.000
z 0.000 0.000 -0.220
Polar
3z2-r2-0.440
x2-y2-0.890
xy-0.634
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.201 -0.574 0.000
y -0.574 9.154 0.000
z 0.000 0.000 5.959


<r2> (average value of r2) Å2
<r2> 160.102
(<r2>)1/2 12.653