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

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-2688.420211
Energy at 298.15K-2688.430712
HF Energy-2687.768739
Nuclear repulsion energy238.451381
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 MP2/6-31G(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' 3203 3025 14.12      
2 A' 3141 2967 13.44      
3 A' 3121 2947 5.12      
4 A' 3105 2933 14.09      
5 A' 1536 1451 5.04      
6 A' 1519 1434 0.84      
7 A' 1507 1423 1.61      
8 A' 1430 1351 2.25      
9 A' 1377 1301 3.48      
10 A' 1272 1202 29.63      
11 A' 1135 1072 1.45      
12 A' 1072 1013 1.02      
13 A' 926 874 8.40      
14 A' 711 671 14.03      
15 A' 322 305 0.70      
16 A' 219 207 1.01      
17 A" 3213 3035 10.94      
18 A" 3198 3021 13.08      
19 A" 3171 2995 0.57      
20 A" 1530 1445 7.64      
21 A" 1336 1262 0.04      
22 A" 1259 1189 0.26      
23 A" 1081 1021 1.86      
24 A" 866 818 0.03      
25 A" 753 711 3.88      
26 A" 246 232 0.02      
27 A" 119 112 0.75      

Unscaled Zero Point Vibrational Energy (zpe) 21184.0 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 20008.3 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 MP2/6-31G(2df,p)
ABC
0.84851 0.05570 0.05384

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.819 0.000
C2 1.505 0.619 0.000
C3 2.229 1.965 0.000
Br4 -0.930 -0.861 0.000
H5 -0.329 1.363 0.885
H6 -0.329 1.363 -0.885
H7 1.789 0.034 0.877
H8 1.789 0.034 -0.877
H9 3.310 1.825 0.000
H10 1.967 2.552 -0.883
H11 1.967 2.552 0.883

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.51822.50601.92021.08991.08992.14132.14133.45982.76622.7662
C21.51821.52782.85002.16832.16831.09241.09242.17092.17422.1742
C32.50601.52784.23852.77262.77262.16642.16641.09061.09171.0917
Br41.92022.85004.23852.46822.46822.99382.99385.01984.56304.5630
H51.08992.16832.77262.46821.76932.50083.05933.77393.13202.5857
H61.08992.16832.77262.46821.76933.05932.50083.77392.58573.1320
H72.14131.09242.16642.99382.50083.05931.75492.50903.07752.5244
H82.14131.09242.16642.99383.05932.50081.75492.50902.52443.0775
H93.45982.17091.09065.01983.77393.77392.50902.50901.76381.7638
H102.76622.17421.09174.56303.13202.58573.07752.52441.76381.7654
H112.76622.17421.09174.56302.58573.13202.52443.07751.76381.7654

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 110.716 C1 C2 H7 109.129
C1 C2 H8 109.129 C2 C1 Br4 111.433
C2 C1 H5 111.424 C2 C1 H6 111.424
C2 C3 H9 110.906 C2 C3 H10 111.099
C2 C3 H11 111.099 C3 C2 H7 110.446
C3 C2 H8 110.446 Br4 C1 H5 106.905
Br4 C1 H6 106.905 H5 C1 H6 108.524
H7 C2 H8 106.882 H9 C3 H10 107.842
H9 C3 H11 107.842 H10 C3 H11 107.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability