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All results from a given calculation for CH3CH2CH2Br (n-propyl bromide)

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-2677.759363
Energy at 298.15K-2677.769833
HF Energy-2677.303854
Nuclear repulsion energy233.726561
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 QCISD/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' 3093 2973 28.36      
2 A' 3082 2962 11.98      
3 A' 3050 2932 5.50      
4 A' 3023 2906 18.08      
5 A' 1581 1520 6.25      
6 A' 1569 1508 2.12      
7 A' 1553 1493 2.66      
8 A' 1476 1419 5.60      
9 A' 1403 1349 3.66      
10 A' 1301 1250 32.99      
11 A' 1130 1086 4.83      
12 A' 1006 967 1.65      
13 A' 893 858 5.87      
14 A' 681 655 15.95      
15 A' 318 306 1.35      
16 A' 216 208 1.37      
17 A" 3144 3022 12.81      
18 A" 3098 2977 26.08      
19 A" 3075 2956 3.51      
20 A" 1578 1517 8.05      
21 A" 1369 1316 0.02      
22 A" 1291 1241 0.19      
23 A" 1102 1060 2.21      
24 A" 892 858 0.01      
25 A" 765 735 4.92      
26 A" 242 232 0.04      
27 A" 117 113 0.73      

Unscaled Zero Point Vibrational Energy (zpe) 21025.4 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 20207.5 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 QCISD/3-21G*
ABC
0.81893 0.05348 0.05169

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.856 0.000
C2 1.528 0.638 0.000
C3 2.277 2.003 0.000
Br4 -0.948 -0.882 0.000
H5 -0.332 1.389 0.897
H6 -0.332 1.389 -0.897
H7 1.806 0.053 0.888
H8 1.806 0.053 -0.888
H9 3.364 1.842 0.000
H10 2.013 2.589 -0.893
H11 2.013 2.589 0.893

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.54342.54931.98041.09501.09502.16662.16663.50582.80182.8018
C21.54341.55682.90522.19732.19731.09891.09892.19612.19952.1995
C32.54931.55684.32702.82662.82662.19382.19381.09921.10011.1001
Br41.98042.90524.32702.51852.51853.04033.04035.10074.64894.6489
H51.09502.19732.82662.51851.79502.52083.08893.83073.18492.6342
H61.09502.19732.82662.51851.79503.08892.52083.83072.63423.1849
H72.16661.09892.19383.04032.52083.08891.77532.53373.10562.5446
H82.16661.09892.19383.04033.08892.52081.77532.53372.54463.1056
H93.50582.19611.09925.10073.83073.83072.53372.53371.78351.7835
H102.80182.19951.10014.64893.18492.63423.10562.54461.78351.7854
H112.80182.19951.10014.64892.63423.18492.54463.10561.78351.7854

picture of n-propyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.629 C1 C2 H7 109.004
C1 C2 H8 109.004 C2 C1 Br4 110.453
C2 C1 H5 111.651 C2 C1 H6 111.651
C2 C3 H9 110.363 C2 C3 H10 110.579
C2 C3 H11 110.579 C3 C2 H7 110.197
C3 C2 H8 110.197 Br4 C1 H5 106.363
Br4 C1 H6 106.363 H5 C1 H6 110.096
H7 C2 H8 107.745 H9 C3 H10 108.382
H9 C3 H11 108.382 H10 C3 H11 108.483
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability