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

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-2687.719746
Energy at 298.15K-2687.730327
HF Energy-2687.403609
Nuclear repulsion energy247.813713
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 CISD/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' 3199 3000 36.22      
2 A' 3177 2980 11.03      
3 A' 3159 2962 18.93      
4 A' 3089 2897 30.32      
5 A' 1586 1487 10.09      
6 A' 1581 1483 7.94      
7 A' 1523 1428 4.90      
8 A' 1335 1252 49.95      
9 A' 1258 1180 34.79      
10 A' 1116 1047 5.57      
11 A' 926 869 7.18      
12 A' 549 515 21.86      
13 A' 419 393 1.86      
14 A' 302 283 2.53      
15 A' 277 260 0.69      
16 A" 3185 2987 14.33      
17 A" 3158 2961 4.50      
18 A" 3082 2890 12.80      
19 A" 1570 1473 1.29      
20 A" 1569 1471 3.56      
21 A" 1507 1413 11.55      
22 A" 1436 1347 1.34      
23 A" 1200 1126 1.67      
24 A" 1018 954 0.19      
25 A" 1010 947 1.86      
26 A" 298 280 0.69      
27 A" 256 240 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 21391.9 cm-1
Scaled (by 0.9378) Zero Point Vibrational Energy (zpe) 20061.3 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 CISD/6-31G
ABC
0.26274 0.09419 0.07435

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.468 -0.937 0.000
Br2 -0.067 1.022 0.000
H3 1.558 -0.896 0.000
C4 -0.067 -1.570 1.283
C5 -0.067 -1.570 -1.283
H6 -1.161 -1.532 1.304
H7 0.245 -2.622 1.331
H8 0.313 -1.054 2.168
H9 -1.161 -1.532 -1.304
H10 0.245 -2.622 -1.331
H11 0.313 -1.054 -2.168

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.03141.09061.52711.52712.17022.15852.17692.17022.15852.1769
Br22.03142.51422.89222.89223.06913.89203.02573.06913.89203.0257
H31.09062.51422.17732.17733.08222.54422.50513.08222.54422.5051
C41.52712.89222.17732.56531.09501.09811.09372.80902.83493.5101
C51.52712.89222.17732.56532.80902.83493.51011.09501.09811.0937
H62.17023.06913.08221.09502.80901.77991.77482.60863.18033.8029
H72.15853.89202.54421.09812.83491.77991.77873.18032.66283.8356
H82.17693.02572.50511.09373.51011.77481.77873.80293.83564.3366
H92.17023.06913.08222.80901.09502.60863.18033.80291.77991.7748
H102.15853.89202.54422.83491.09813.18032.66283.83561.77991.7787
H112.17693.02572.50513.51011.09373.80293.83564.33661.77481.7787

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 110.632 C1 C4 H7 109.525
C1 C4 H8 111.253 C1 C5 H9 110.632
C1 C5 H10 109.525 C1 C5 H11 111.253
Br2 C1 H3 103.115 Br2 C1 C4 107.892
Br2 C1 C5 107.892 H3 C1 C4 111.472
H3 C1 C5 111.472 C4 C1 C5 114.257
H6 C4 H7 108.500 H6 C4 H8 108.364
H7 C4 H8 108.495 H9 C5 H10 108.500
H9 C5 H11 108.364 H10 C5 H11 108.495
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability