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

using model chemistry: MP2=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-2661.146688
Energy at 298.15K-2661.157037
HF Energy-2660.973135
Nuclear repulsion energy248.444929
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/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3560 3164 2.39      
2 A' 3552 3158 1.97      
3 A' 3422 3042 4.24      
4 A' 3373 2998 1.82      
5 A' 1730 1538 0.95      
6 A' 1725 1533 1.93      
7 A' 1617 1437 0.84      
8 A' 1447 1286 44.22      
9 A' 1318 1172 11.89      
10 A' 1193 1061 6.50      
11 A' 1000 889 1.62      
12 A' 677 602 4.21      
13 A' 427 380 0.38      
14 A' 314 280 0.38      
15 A' 249 221 0.08      
16 A" 3559 3164 0.60      
17 A" 3551 3157 0.42      
18 A" 3373 2999 1.97      
19 A" 1723 1532 0.40      
20 A" 1721 1529 0.08      
21 A" 1606 1428 0.04      
22 A" 1508 1340 7.56      
23 A" 1252 1113 3.47      
24 A" 1074 955 0.16      
25 A" 1044 928 0.67      
26 A" 300 266 0.93      
27 A" 236 210 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23275.1 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 20689.2 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/STO-3G
ABC
0.25983 0.09483 0.07446

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.870 -0.439 0.000
Br2 -0.648 0.787 0.000
H3 1.786 0.190 0.000
C4 0.870 -1.321 1.292
C5 0.870 -1.321 -1.292
H6 -0.032 -1.956 1.332
H7 1.760 -1.976 1.295
H8 0.895 -0.691 2.197
H9 -0.032 -1.956 -1.332
H10 1.760 -1.976 -1.295
H11 0.895 -0.691 -2.197

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.95151.11091.56491.56492.21122.19812.21202.21122.19812.2120
Br21.95152.50712.90202.90203.11113.88713.06553.11113.88713.0655
H31.11092.50712.18912.18913.11162.52332.52953.11162.52332.5295
C41.56492.90202.18912.58431.10341.10411.10332.84612.81303.5461
C51.56492.90202.18912.58432.84612.81303.54611.10341.10411.1033
H62.21123.11113.11161.10342.84611.79151.79132.66333.17943.8618
H72.19813.88712.52331.10412.81301.79151.79193.17942.59033.8203
H82.21203.06552.52951.10333.54611.79131.79193.86183.82034.3948
H92.21123.11113.11162.84611.10342.66333.17943.86181.79151.7913
H102.19813.88712.52332.81301.10413.17942.59033.82031.79151.7919
H112.21203.06552.52953.54611.10333.86183.82034.39481.79131.7919

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 110.737 C1 C4 H7 109.671
C1 C4 H8 110.808 C1 C5 H9 110.737
C1 C5 H10 109.671 C1 C5 H11 110.808
Br2 C1 H3 106.659 Br2 C1 C4 110.750
Br2 C1 C5 110.750 H3 C1 C4 108.604
H3 C1 C5 108.604 C4 C1 C5 111.315
H6 C4 H7 108.495 H6 C4 H8 108.531
H7 C4 H8 108.535 H9 C5 H10 108.495
H9 C5 H11 108.531 H10 C5 H11 108.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability