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

using model chemistry: CCSD/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 CCSD/6-31G*
 hartrees
Energy at 0K-2688.134096
Energy at 298.15K-2688.144638
HF Energy-2687.576731
Nuclear repulsion energy250.045160
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 CCSD/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' 3176 2999 23.14      
2 A' 3152 2977 29.56      
3 A' 3137 2962 1.29      
4 A' 3072 2901 25.01      
5 A' 1554 1468 8.08      
6 A' 1544 1458 7.36      
7 A' 1475 1393 4.94      
8 A' 1300 1227 48.96      
9 A' 1223 1155 23.89      
10 A' 1088 1027 6.61      
11 A' 923 871 5.53      
12 A' 561 530 16.00      
13 A' 414 391 1.54      
14 A' 309 292 1.66      
15 A' 276 261 0.70      
16 A" 3171 2994 10.39      
17 A" 3144 2969 2.22      
18 A" 3068 2897 10.46      
19 A" 1535 1450 0.49      
20 A" 1533 1447 2.78      
21 A" 1463 1382 10.54      
22 A" 1404 1326 0.30      
23 A" 1186 1119 0.54      
24 A" 987 932 0.02      
25 A" 968 914 1.42      
26 A" 297 281 0.62      
27 A" 257 243 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 21108.0 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 19932.3 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 CCSD/6-31G*
ABC
0.26700 0.09598 0.07570

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.455 -0.910 0.000
Br2 -0.066 1.012 0.000
H3 1.548 -0.876 0.000
C4 -0.066 -1.559 1.272
C5 -0.066 -1.559 -1.272
H6 -1.161 -1.525 1.300
H7 0.251 -2.611 1.300
H8 0.320 -1.054 2.163
H9 -1.161 -1.525 -1.300
H10 0.251 -2.611 -1.300
H11 0.320 -1.054 -2.163

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.99151.09331.52061.52062.16372.15092.17222.16372.15092.1722
Br21.99152.48432.86902.86903.05433.86243.01643.05433.86243.0164
H31.09332.48432.16572.16573.07422.52632.49383.07422.52632.4938
C41.52062.86902.16572.54431.09571.09871.09452.79592.79713.4936
C51.52062.86902.16572.54432.79592.79713.49361.09571.09871.0945
H62.16373.05433.07421.09572.79591.78101.77752.60043.15193.7960
H72.15093.86242.52631.09872.79711.78101.78103.15192.60063.7977
H82.17223.01642.49381.09453.49361.77751.78103.79603.79774.3262
H92.16373.05433.07422.79591.09572.60043.15193.79601.78101.7775
H102.15093.86242.52632.79711.09873.15192.60063.79771.78101.7810
H112.17223.01642.49383.49361.09453.79603.79774.32621.77751.7810

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 110.537 C1 C4 H7 109.345
C1 C4 H8 111.287 C1 C5 H9 110.537
C1 C5 H10 109.345 C1 C5 H11 111.287
Br2 C1 H3 103.417 Br2 C1 C4 108.813
Br2 C1 C5 108.813 H3 C1 C4 110.846
H3 C1 C5 110.846 C4 C1 C5 113.574
H6 C4 H7 108.506 H6 C4 H8 108.504
H7 C4 H8 108.596 H9 C5 H10 108.506
H9 C5 H11 108.504 H10 C5 H11 108.596
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability