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 CH3CH2CH2Br (n-propyl bromide)

using model chemistry: BLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31+G**
 hartrees
Energy at 0K-2690.200706
Energy at 298.15K-2690.211046
HF Energy-2690.200706
Nuclear repulsion energy232.126823
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 BLYP/6-31+G**
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' 3030 3014 35.76      
2 A' 3019 3003 14.23      
3 A' 2975 2960 12.58      
4 A' 2960 2944 32.13      
5 A' 1477 1469 6.42      
6 A' 1462 1455 1.80      
7 A' 1454 1446 1.09      
8 A' 1378 1371 1.63      
9 A' 1319 1312 5.05      
10 A' 1222 1216 54.09      
11 A' 1080 1075 1.56      
12 A' 988 982 2.64      
13 A' 875 871 10.66      
14 A' 621 617 28.93      
15 A' 295 293 2.61      
16 A' 199 198 1.71      
17 A" 3082 3066 10.90      
18 A" 3028 3012 43.83      
19 A" 3005 2989 0.00      
20 A" 1466 1459 9.09      
21 A" 1281 1274 0.03      
22 A" 1210 1204 0.50      
23 A" 1032 1026 2.45      
24 A" 838 834 0.00      
25 A" 737 733 3.77      
26 A" 231 230 0.04      
27 A" 148 148 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 20206.3 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 20099.2 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 BLYP/6-31+G**
ABC
0.83650 0.05243 0.05077

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.850 0.000
C2 1.523 0.717 0.000
C3 2.196 2.112 0.000
Br4 -0.925 -0.928 0.000
H5 -0.376 1.360 0.897
H6 -0.376 1.360 -0.897
H7 1.844 0.143 0.886
H8 1.844 0.143 -0.886
H9 3.293 2.011 0.000
H10 1.915 2.698 -0.891
H11 1.915 2.698 0.891

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.52932.53252.00481.09801.09802.16392.16393.49172.80632.8063
C21.52931.54832.95022.19682.19681.10291.10292.19192.20702.2070
C32.53251.54834.35702.82562.82562.18732.18731.10221.10311.1031
Br42.00482.95024.35702.51852.51853.09803.09805.14114.69154.6915
H51.09802.19682.82562.51851.79352.53133.09593.83293.19932.6529
H61.09802.19682.82562.51851.79353.09592.53133.83292.65293.1993
H72.16391.10292.18733.09802.53133.09591.77132.52443.11282.5557
H82.16391.10292.18733.09803.09592.53131.77132.52442.55573.1128
H93.49172.19191.10225.14113.83293.83292.52442.52441.77971.7797
H102.80632.20701.10314.69153.19932.65293.11282.55571.77971.7829
H112.80632.20701.10314.69152.65293.19932.55573.11281.77971.7829

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 110.749 C1 C2 H7 109.532
C1 C2 H8 109.532 C2 C1 Br4 112.492
C2 C1 H5 112.433 C2 C1 H6 112.433
C2 C3 H9 110.452 C2 C3 H10 111.584
C2 C3 H11 111.584 C3 C2 H7 110.051
C3 C2 H8 110.051 Br4 C1 H5 104.712
Br4 C1 H6 104.712 H5 C1 H6 109.511
H7 C2 H8 106.843 H9 C3 H10 107.610
H9 C3 H11 107.610 H10 C3 H11 107.818
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.351      
2 C -0.074      
3 C -0.555      
4 Br -0.129      
5 H 0.173      
6 H 0.173      
7 H 0.157      
8 H 0.157      
9 H 0.154      
10 H 0.148      
11 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.412 1.971 0.000 2.424
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.641 0.133 0.000
y 0.133 -38.896 0.000
z 0.000 0.000 -39.592
Traceless
 xyz
x -0.398 0.133 0.000
y 0.133 0.721 0.000
z 0.000 0.000 -0.323
Polar
3z2-r2-0.646
x2-y2-0.746
xy0.133
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.545 2.012 0.000
y 2.012 9.930 0.000
z 0.000 0.000 7.304


<r2> (average value of r2) Å2
<r2> 214.120
(<r2>)1/2 14.633