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: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-2692.945078
Energy at 298.15K-2692.955488
HF Energy-2692.945078
Nuclear repulsion energy236.489789
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 B1B95/cc-pVDZ
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' 3157 3034 21.33      
2 A' 3114 2993 17.18      
3 A' 3084 2964 9.50      
4 A' 3065 2946 25.21      
5 A' 1483 1426 5.10      
6 A' 1468 1411 1.03      
7 A' 1462 1406 2.09      
8 A' 1396 1342 0.61      
9 A' 1351 1298 4.11      
10 A' 1232 1184 41.79      
11 A' 1123 1079 0.87      
12 A' 1066 1025 0.86      
13 A' 916 881 10.18      
14 A' 663 637 23.92      
15 A' 309 297 1.68      
16 A' 208 200 1.31      
17 A" 3185 3061 11.22      
18 A" 3151 3029 29.37      
19 A" 3124 3003 0.49      
20 A" 1470 1413 8.07      
21 A" 1305 1255 0.02      
22 A" 1227 1179 0.18      
23 A" 1047 1006 2.27      
24 A" 848 815 0.03      
25 A" 748 719 4.76      
26 A" 240 230 0.05      
27 A" 116 112 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 20778.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 19972.1 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 B1B95/cc-pVDZ
ABC
0.84962 0.05468 0.05291

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.832 0.000
C2 1.502 0.668 0.000
C3 2.207 2.016 0.000
Br4 -0.924 -0.888 0.000
H5 -0.360 1.358 0.891
H6 -0.360 1.358 -0.891
H7 1.801 0.082 0.881
H8 1.801 0.082 -0.881
H9 3.297 1.887 0.000
H10 1.943 2.609 -0.887
H11 1.943 2.609 0.887

Atom - Atom Distances (Å)
  C1 C2 C3 Br4 H5 H6 H7 H8 H9 H10 H11
C11.51142.50491.95241.09571.09572.14042.14043.46172.77852.7785
C21.51141.52152.88212.17702.17701.09921.09922.16942.17932.1793
C32.50491.52154.27052.79632.79632.16412.16411.09751.09911.0991
Br41.95242.88214.27052.48112.48113.02293.02295.05114.60804.6080
H51.09572.17702.79632.48111.78282.50923.07203.80113.16762.6211
H61.09572.17702.79632.48111.78283.07202.50923.80112.62113.1676
H72.14041.09922.16413.02292.50923.07201.76172.50463.08752.5311
H82.14041.09922.16413.02293.07202.50921.76172.50462.53113.0875
H93.46172.16941.09755.05113.80113.80112.50462.50461.77251.7725
H102.77852.17931.09914.60803.16762.62113.08752.53111.77251.7744
H112.77852.17931.09914.60802.62113.16762.53113.08751.77251.7744

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 111.356 C1 C2 H7 109.123
C1 C2 H8 109.123 C2 C1 Br4 111.993
C2 C1 H5 112.255 C2 C1 H6 112.255
C2 C3 H9 110.821 C2 C3 H10 111.503
C2 C3 H11 111.503 C3 C2 H7 110.293
C3 C2 H8 110.293 Br4 C1 H5 105.501
Br4 C1 H6 105.501 H5 C1 H6 108.896
H7 C2 H8 106.521 H9 C3 H10 107.589
H9 C3 H11 107.589 H10 C3 H11 107.644
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.126      
2 C -0.060      
3 C -0.060      
4 Br -0.119      
5 H 0.081      
6 H 0.081      
7 H 0.045      
8 H 0.045      
9 H 0.040      
10 H 0.037      
11 H 0.037      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.266 1.744 0.000 2.155
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.279 0.146 0.000
y 0.146 -37.523 0.000
z 0.000 0.000 -38.268
Traceless
 xyz
x -0.383 0.146 0.000
y 0.146 0.751 0.000
z 0.000 0.000 -0.367
Polar
3z2-r2-0.735
x2-y2-0.756
xy0.146
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.858 1.867 0.000
y 1.867 8.307 0.000
z 0.000 0.000 5.801


<r2> (average value of r2) Å2
<r2> 205.958
(<r2>)1/2 14.351