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

using model chemistry: MP2=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-2688.535981
Energy at 298.15K-2688.546634
HF Energy-2687.770744
Nuclear repulsion energy255.649716
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 MP2=FULL/6-31G(2df,p)
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' 3226 3032 9.84      
2 A' 3205 3013 19.02      
3 A' 3160 2970 2.45      
4 A' 3111 2924 14.32      
5 A' 1545 1452 7.51      
6 A' 1535 1443 7.79      
7 A' 1444 1358 5.58      
8 A' 1294 1216 35.75      
9 A' 1208 1135 17.24      
10 A' 1087 1022 8.86      
11 A' 938 882 3.65      
12 A' 615 578 8.47      
13 A' 416 391 0.68      
14 A' 321 302 0.56      
15 A' 287 270 0.43      
16 A" 3223 3029 5.06      
17 A" 3202 3009 0.73      
18 A" 3108 2922 8.14      
19 A" 1524 1432 0.12      
20 A" 1523 1431 2.90      
21 A" 1430 1344 10.33      
22 A" 1378 1295 0.46      
23 A" 1182 1111 0.60      
24 A" 982 923 0.00      
25 A" 957 899 1.65      
26 A" 305 287 0.40      
27 A" 271 255 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 21237.9 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 19961.5 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 MP2=FULL/6-31G(2df,p)
ABC
0.27262 0.10152 0.07956

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.886 -0.393 0.000
Br2 -0.658 0.732 0.000
H3 1.741 0.282 0.000
C4 0.886 -1.236 1.257
C5 0.886 -1.236 -1.257
H6 0.009 -1.881 1.280
H7 1.779 -1.864 1.278
H8 0.879 -0.615 2.150
H9 0.009 -1.881 -1.280
H10 1.779 -1.864 -1.278
H11 0.879 -0.615 -2.150

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.91091.08851.51351.51352.14982.14282.16182.14982.14282.1618
Br21.91092.44052.79972.79972.98533.78272.96662.98533.78272.9666
H31.08852.44052.14782.14783.05172.49752.48413.05172.49752.4841
C41.51352.79972.14782.51421.08901.09121.08782.76092.75983.4636
C51.51352.79972.14782.51422.76092.75983.46361.08901.09121.0878
H62.14982.98533.05171.08902.76091.76941.76532.56013.11033.7585
H72.14283.78272.49751.09122.75981.76941.76923.11032.55583.7579
H82.16182.96662.48411.08783.46361.76531.76923.75853.75794.3007
H92.14982.98533.05172.76091.08902.56013.11033.75851.76941.7653
H102.14283.78272.49752.75981.09123.11032.55583.75791.76941.7692
H112.16182.96662.48413.46361.08783.75853.75794.30071.76531.7692

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 110.326 C1 C4 H7 109.643
C1 C4 H8 111.361 C1 C5 H9 110.326
C1 C5 H10 109.643 C1 C5 H11 111.361
Br2 C1 H3 105.609 Br2 C1 C4 109.139
Br2 C1 C5 109.139 H3 C1 C4 110.198
H3 C1 C5 110.198 C4 C1 C5 112.326
H6 C4 H7 108.505 H6 C4 H8 108.373
H7 C4 H8 108.564 H9 C5 H10 108.505
H9 C5 H11 108.373 H10 C5 H11 108.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability