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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-65.837419
Energy at 298.15K-65.841345
HF Energy-65.769738
Nuclear repulsion energy31.760616
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 B2PLYP/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' 3123 2964 14.11      
2 A' 3025 2871 4.19      
3 A' 2636 2502 103.51      
4 A' 1530 1453 2.04      
5 A' 1385 1315 60.61      
6 A' 1286 1220 29.57      
7 A' 1113 1057 75.98      
8 A' 982 932 11.37      
9 A' 587 557 0.41      
10 A" 3171 3010 18.39      
11 A" 2708 2570 155.47      
12 A" 1493 1417 3.74      
13 A" 1091 1035 20.53      
14 A" 697 662 0.69      
15 A" 139 131 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 12482.3 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 11848.2 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 B2PLYP/6-31G*
ABC
3.20841 0.71415 0.65312

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 -0.685 0.000
B2 -0.016 0.876 0.000
H3 1.050 -0.970 0.000
H4 -0.450 -1.140 0.895
H5 -0.450 -1.140 -0.895
H6 0.015 1.492 -1.025
H7 0.015 1.492 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56091.10391.09291.09292.40652.4065
B21.56092.13152.24712.24711.19631.1963
H31.10392.13151.75461.75462.86032.8603
H41.09292.24711.75461.78903.29012.6754
H51.09292.24711.75461.78902.67543.2901
H62.40651.19632.86033.29012.67542.0497
H72.40651.19632.86032.67543.29012.0497

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.006 C1 B2 H7 121.006
B2 C1 H3 104.935 B2 C1 H4 114.571
B2 C1 H5 114.571 H3 C1 H4 106.012
H3 C1 H5 106.012 H4 C1 H5 109.872
H6 B2 H7 117.899
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.600      
2 B 0.158      
3 H 0.169      
4 H 0.164      
5 H 0.164      
6 H -0.028      
7 H -0.028      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.115 -0.638 0.000 0.648
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.461 -0.179 0.000
y -0.179 -16.193 0.000
z 0.000 0.000 -15.478
Traceless
 xyz
x 2.375 -0.179 0.000
y -0.179 -1.724 0.000
z 0.000 0.000 -0.651
Polar
3z2-r2-1.303
x2-y22.732
xy-0.179
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.683 -0.016 0.000
y -0.016 4.039 0.000
z 0.000 0.000 3.609


<r2> (average value of r2) Å2
<r2> 29.248
(<r2>)1/2 5.408