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

using model chemistry: QCISD/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 QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-2688.474161
Energy at 298.15K-2688.484647
HF Energy-2687.768750
Nuclear repulsion energy237.584939
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/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' 3166 3000 21.42      
2 A' 3130 2966 14.25      
3 A' 3100 2936 7.55      
4 A' 3082 2920 17.88      
5 A' 1540 1459 4.24      
6 A' 1524 1444 0.59      
7 A' 1514 1435 1.77      
8 A' 1444 1368 1.45      
9 A' 1395 1322 3.25      
10 A' 1280 1213 33.12      
11 A' 1136 1076 1.30      
12 A' 1069 1012 0.68      
13 A' 924 875 6.61      
14 A' 698 661 16.10      
15 A' 320 304 0.88      
16 A' 219 208 1.03      
17 A" 3193 3025 10.37      
18 A" 3161 2995 25.53      
19 A" 3138 2973 0.15      
20 A" 1531 1450 6.62      
21 A" 1342 1271 0.06      
22 A" 1265 1199 0.25      
23 A" 1083 1026 1.55      
24 A" 869 823 0.01      
25 A" 752 712 3.13      
26 A" 242 229 0.02      
27 A" 116 110 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 21115.1 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 20004.5 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/6-31G(2df,p)
ABC
0.84520 0.05525 0.05340

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.824 0.000
C2 1.509 0.624 0.000
C3 2.240 1.970 0.000
Br4 -0.934 -0.865 0.000
H5 -0.332 1.366 0.885
H6 -0.332 1.366 -0.885
H7 1.793 0.038 0.878
H8 1.793 0.038 -0.878
H9 3.323 1.823 0.000
H10 1.982 2.560 -0.884
H11 1.982 2.560 0.884

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.52242.51631.93011.09001.09002.14592.14593.46962.77882.7788
C21.52241.53142.86152.17352.17351.09351.09352.17412.17952.1795
C32.51631.53144.25612.78652.78652.16892.16891.09211.09351.0935
Br41.93012.86154.25612.47472.47473.00433.00435.03474.58394.5839
H51.09002.17352.78652.47471.77062.50633.06453.78793.14782.6035
H61.09002.17352.78652.47471.77063.06452.50633.78792.60353.1478
H72.14591.09352.16893.00432.50633.06451.75622.50973.08222.5288
H82.14591.09352.16893.00433.06452.50631.75622.50972.52883.0822
H93.46962.17411.09215.03473.78793.78792.50972.50971.76641.7664
H102.77882.17951.09354.58393.14782.60353.08222.52881.76641.7680
H112.77882.17951.09354.58392.60353.14782.52883.08221.76641.7680

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 110.977 C1 C2 H7 109.142
C1 C2 H8 109.142 C2 C1 Br4 111.415
C2 C1 H5 111.543 C2 C1 H6 111.543
C2 C3 H9 110.815 C2 C3 H10 111.162
C2 C3 H11 111.162 C3 C2 H7 110.320
C3 C2 H8 110.320 Br4 C1 H5 106.730
Br4 C1 H6 106.730 H5 C1 H6 108.633
H7 C2 H8 106.838 H9 C3 H10 107.840
H9 C3 H11 107.840 H10 C3 H11 107.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability