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

using model chemistry: CCD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-2677.450736
Energy at 298.15K-2677.461283
HF Energy-2677.094019
Nuclear repulsion energy247.059536
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 CCD/3-21G
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' 3137 3050 32.27      
2 A' 3116 3030 10.62      
3 A' 3101 3015 11.20      
4 A' 3039 2955 21.28      
5 A' 1584 1540 8.49      
6 A' 1575 1532 6.90      
7 A' 1493 1452 4.98      
8 A' 1322 1285 40.71      
9 A' 1233 1199 21.80      
10 A' 1103 1073 6.08      
11 A' 892 867 4.25      
12 A' 565 549 7.92      
13 A' 413 402 0.62      
14 A' 304 296 1.01      
15 A' 268 261 0.39      
16 A" 3123 3037 12.31      
17 A" 3101 3016 4.52      
18 A" 3035 2951 9.29      
19 A" 1567 1524 2.48      
20 A" 1564 1521 1.86      
21 A" 1478 1437 10.51      
22 A" 1404 1365 0.78      
23 A" 1148 1116 2.22      
24 A" 1001 973 2.14      
25 A" 981 954 0.30      
26 A" 289 281 0.46      
27 A" 257 250 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 21045.8 cm-1
Scaled (by 0.9723) Zero Point Vibrational Energy (zpe) 20462.8 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 CCD/3-21G
ABC
0.26433 0.09281 0.07359

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.930 -0.435 0.000
Br2 -0.689 0.768 0.000
H3 1.780 0.254 0.000
C4 0.930 -1.291 1.279
C5 0.930 -1.291 -1.279
H6 0.045 -1.940 1.300
H7 1.833 -1.920 1.294
H8 0.924 -0.659 2.176
H9 0.045 -1.940 -1.300
H10 1.833 -1.920 -1.294
H11 0.924 -0.659 -2.176

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C12.01771.09391.53891.53892.17652.16672.18762.17652.16672.1876
Br22.01772.52192.91512.91513.09233.90693.06163.09233.90693.0616
H31.09392.52192.17812.17813.08412.53082.51023.08412.53082.5102
C41.53892.91512.17812.55881.09791.10071.09702.80322.79903.5128
C51.53892.91512.17812.55882.80322.79903.51281.09791.10071.0970
H62.17653.09233.08411.09792.80321.78791.78352.60003.15063.8075
H72.16673.90692.53081.10072.79901.78791.78773.15062.58833.8027
H82.18763.06162.51021.09703.51281.78351.78773.80753.80274.3523
H92.17653.09233.08412.80321.09792.60003.15063.80751.78791.7835
H102.16673.90692.53082.79901.10073.15062.58833.80271.78791.7877
H112.18763.06162.51023.51281.09703.80753.80274.35231.78351.7877

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 110.139 C1 C4 H7 109.211
C1 C4 H8 111.070 C1 C5 H9 110.139
C1 C5 H10 109.211 C1 C5 H11 111.070
Br2 C1 H3 104.322 Br2 C1 C4 109.357
Br2 C1 C5 109.357 H3 C1 C4 110.502
H3 C1 C5 110.502 C4 C1 C5 112.476
H6 C4 H7 108.818 H6 C4 H8 108.695
H7 C4 H8 108.865 H9 C5 H10 108.818
H9 C5 H11 108.695 H10 C5 H11 108.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability