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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-65.825787
Energy at 298.15K-65.829665
HF Energy-65.825787
Nuclear repulsion energy31.646203
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 PBEPBEultrafine/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' 3031 2990 11.64      
2 A' 2925 2885 3.70      
3 A' 2532 2498 100.89      
4 A' 1442 1422 1.63      
5 A' 1292 1275 70.59      
6 A' 1213 1197 12.61      
7 A' 1056 1042 62.21      
8 A' 965 951 11.32      
9 A' 524 517 1.39      
10 A" 3086 3044 13.77      
11 A" 2606 2570 139.57      
12 A" 1394 1374 3.42      
13 A" 1031 1017 18.89      
14 A" 664 655 0.18      
15 A" 164 162 2.80      

Unscaled Zero Point Vibrational Energy (zpe) 11962.2 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 11798.4 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 PBEPBEultrafine/6-31G**
ABC
3.16023 0.71441 0.65154

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 -0.684 0.000
B2 -0.021 0.874 0.000
H3 1.064 -0.941 0.000
H4 -0.434 -1.157 0.904
H5 -0.434 -1.157 -0.904
H6 0.016 1.495 -1.035
H7 0.016 1.495 1.035

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55751.11441.10121.10122.41272.4127
B21.55752.11422.26112.26111.20771.2077
H31.11442.11421.76301.76302.84732.8473
H41.10122.26111.76301.80833.31622.6936
H51.10122.26111.76301.80832.69363.3162
H62.41271.20772.84733.31622.69362.0694
H72.41271.20772.84732.69363.31622.0694

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.986 C1 B2 H7 120.986
B2 C1 H3 103.359 B2 C1 H4 115.451
B2 C1 H5 115.451 H3 C1 H4 105.443
H3 C1 H5 105.443 H4 C1 H5 110.381
H6 B2 H7 117.911
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.474      
2 B 0.129      
3 H 0.144      
4 H 0.134      
5 H 0.134      
6 H -0.033      
7 H -0.033      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.163 -0.818 0.000 0.834
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.510 -0.205 0.000
y -0.205 -15.929 0.000
z 0.000 0.000 -15.277
Traceless
 xyz
x 2.093 -0.205 0.000
y -0.205 -1.535 0.000
z 0.000 0.000 -0.557
Polar
3z2-r2-1.115
x2-y22.418
xy-0.205
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.854 -0.022 0.000
y -0.022 4.410 0.000
z 0.000 0.000 3.773


<r2> (average value of r2) Å2
<r2> 29.259
(<r2>)1/2 5.409