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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31+G**
 hartrees
Energy at 0K-65.850335
Energy at 298.15K-65.854255
HF Energy-65.850335
Nuclear repulsion energy31.783307
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 PBE1PBE/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' 3112 2973 13.05      
2 A' 3007 2873 2.61      
3 A' 2586 2470 118.25      
4 A' 1477 1411 4.80      
5 A' 1332 1272 86.17      
6 A' 1244 1188 17.16      
7 A' 1081 1032 67.39      
8 A' 980 936 11.42      
9 A' 549 525 0.50      
10 A" 3166 3024 13.02      
11 A" 2657 2538 169.29      
12 A" 1432 1368 6.79      
13 A" 1058 1011 20.54      
14 A" 680 649 0.72      
15 A" 161 153 2.20      

Unscaled Zero Point Vibrational Energy (zpe) 12259.5 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 11711.5 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 PBE1PBE/6-31+G**
ABC
3.19424 0.71856 0.65586

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.683 0.000
B2 -0.019 0.872 0.000
H3 1.055 -0.948 0.000
H4 -0.439 -1.146 0.898
H5 -0.439 -1.146 -0.898
H6 0.015 1.489 -1.029
H7 0.015 1.489 1.029

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55481.10611.09391.09392.40422.4042
B21.55482.11282.24802.24801.20091.2009
H31.10612.11281.75431.75432.84272.8427
H41.09392.24801.75431.79553.29622.6774
H51.09392.24801.75431.79552.67743.2962
H62.40421.20092.84273.29622.67742.0588
H72.40421.20092.84272.67743.29622.0588

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.950 C1 B2 H7 120.950
B2 C1 H3 103.843 B2 C1 H4 115.033
B2 C1 H5 115.033 H3 C1 H4 105.762
H3 C1 H5 105.762 H4 C1 H5 110.299
H6 B2 H7 117.997
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.667      
2 B 0.157      
3 H 0.182      
4 H 0.184      
5 H 0.184      
6 H -0.020      
7 H -0.020      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.126 -0.691 0.000 0.702
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.741 -0.167 0.000
y -0.167 -16.501 0.000
z 0.000 0.000 -15.687
Traceless
 xyz
x 2.353 -0.167 0.000
y -0.167 -1.787 0.000
z 0.000 0.000 -0.566
Polar
3z2-r2-1.133
x2-y22.760
xy-0.167
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.024 -0.025 0.000
y -0.025 4.679 0.000
z 0.000 0.000 4.059


<r2> (average value of r2) Å2
<r2> 29.357
(<r2>)1/2 5.418