return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/6-311G**

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/6-311G**
 hartrees
Energy at 0K-2690.720947
Energy at 298.15K-2690.731529
HF Energy-2690.087047
Nuclear repulsion energy250.914106
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/6-311G**
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 3024 27.52      
2 A' 3145 3004 36.38      
3 A' 3127 2986 1.04      
4 A' 3063 2925 25.99      
5 A' 1528 1459 6.26      
6 A' 1520 1452 7.06      
7 A' 1453 1388 3.93      
8 A' 1306 1247 49.72      
9 A' 1212 1157 17.21      
10 A' 1089 1040 7.34      
11 A' 922 880 4.94      
12 A' 581 554 13.09      
13 A' 411 393 1.04      
14 A' 312 298 0.79      
15 A' 279 267 0.39      
16 A" 3160 3019 12.55      
17 A" 3136 2995 1.81      
18 A" 3059 2921 12.26      
19 A" 1509 1441 1.18      
20 A" 1508 1440 1.16      
21 A" 1441 1376 8.01      
22 A" 1382 1320 0.65      
23 A" 1173 1120 0.52      
24 A" 979 935 0.07      
25 A" 957 914 0.91      
26 A" 297 283 0.43      
27 A" 254 242 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 20982.3 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 20040.2 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/6-311G**
ABC
0.26785 0.09669 0.07616

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.900 -0.430 0.000
Br2 -0.668 0.758 0.000
H3 1.753 0.252 0.000
C4 0.900 -1.272 1.271
C5 0.900 -1.272 -1.271
H6 0.016 -1.917 1.304
H7 1.795 -1.907 1.283
H8 0.906 -0.643 2.165
H9 0.016 -1.917 -1.304
H10 1.795 -1.907 -1.283
H11 0.906 -0.643 -2.165

Atom - Atom Distances (Å)
  C1 Br2 H3 C4 C5 H6 H7 H8 H9 H10 H11
C11.96781.09231.52441.52442.16632.15112.17572.16632.15112.1757
Br21.96782.47372.86292.86293.05363.84923.02133.05363.84923.0213
H31.09232.47372.16002.16003.06962.51162.49153.06962.51162.4915
C41.52442.86292.16002.54201.09481.09741.09332.79822.77993.4933
C51.52442.86292.16002.54202.79822.77993.49331.09481.09741.0933
H62.16633.05363.06961.09482.79821.77941.77622.60873.14033.8016
H72.15113.84922.51161.09742.77991.77941.77943.14032.56643.7789
H82.17573.02132.49151.09333.49331.77621.77943.80163.77894.3305
H92.16633.05363.06962.79821.09482.60873.14033.80161.77941.7762
H102.15113.84922.51162.77991.09743.14032.56643.77891.77941.7794
H112.17573.02132.49153.49331.09333.80163.77894.33051.77621.7794

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 110.527 C1 C4 H7 109.183
C1 C4 H8 111.368 C1 C5 H9 110.527
C1 C5 H10 109.183 C1 C5 H11 111.368
Br2 C1 H3 104.193 Br2 C1 C4 109.478
Br2 C1 C5 109.478 H3 C1 C4 110.175
H3 C1 C5 110.175 C4 C1 C5 112.974
H6 C4 H7 108.528 H6 C4 H8 108.536
H7 C4 H8 108.634 H9 C5 H10 108.528
H9 C5 H11 108.536 H10 C5 H11 108.634
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability