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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-65.464713
Energy at 298.15K-65.468717
HF Energy-65.464713
Nuclear repulsion energy31.798141
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 HF/TZVP
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' 3195 2903 25.32      
2 A' 3109 2825 9.51      
3 A' 2653 2410 130.44      
4 A' 1594 1448 3.18      
5 A' 1451 1318 54.25      
6 A' 1341 1218 42.97      
7 A' 1159 1053 82.81      
8 A' 989 899 12.32      
9 A' 640 582 2.26      
10 A" 3236 2941 32.05      
11 A" 2712 2464 203.05      
12 A" 1557 1414 4.73      
13 A" 1143 1038 21.63      
14 A" 727 660 2.53      
15 A" 135 123 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 12819.3 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 11647.6 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 HF/TZVP
ABC
3.23893 0.71059 0.65085

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.689 0.000
B2 -0.014 0.879 0.000
H3 1.040 -0.984 0.000
H4 -0.456 -1.131 0.886
H5 -0.456 -1.131 -0.886
H6 0.013 1.493 -1.023
H7 0.013 1.493 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56841.09461.08441.08442.41032.4103
B21.56842.14042.24082.24081.19311.1931
H31.09462.14041.74531.74532.86992.8699
H41.08442.24081.74531.77253.27862.6691
H51.08442.24081.74531.77252.66913.2786
H62.41031.19312.86993.27862.66912.0453
H72.41031.19312.86992.66913.27862.0453

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.973 C1 B2 H7 120.973
B2 C1 H3 105.603 B2 C1 H4 114.035
B2 C1 H5 114.035 H3 C1 H4 106.445
H3 C1 H5 106.445 H4 C1 H5 109.624
H6 B2 H7 117.988
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.347      
2 B 0.216      
3 H 0.089      
4 H 0.095      
5 H 0.095      
6 H -0.074      
7 H -0.074      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.056 -0.465 0.000 0.468
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.639 -0.140 0.000
y -0.140 -16.757 0.000
z 0.000 0.000 -15.920
Traceless
 xyz
x 2.699 -0.140 0.000
y -0.140 -1.977 0.000
z 0.000 0.000 -0.722
Polar
3z2-r2-1.444
x2-y23.117
xy-0.140
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.968 -0.000 0.000
y -0.000 4.206 0.000
z 0.000 0.000 3.934


<r2> (average value of r2) Å2
<r2> 29.505
(<r2>)1/2 5.432