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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HSEh1PBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-31G(2df,p)
 hartrees
Energy at 0K-65.855341
Energy at 298.15K-65.859272
HF Energy-65.855341
Nuclear repulsion energy31.820795
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 HSEh1PBE/6-31G(2df,p)
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' 3107 2976 11.08      
2 A' 3001 2874 3.20      
3 A' 2581 2472 101.26      
4 A' 1472 1410 1.41      
5 A' 1321 1265 65.87      
6 A' 1244 1191 14.12      
7 A' 1082 1037 64.62      
8 A' 982 941 12.28      
9 A' 541 518 0.92      
10 A" 3162 3028 12.49      
11 A" 2656 2543 134.27      
12 A" 1426 1366 3.29      
13 A" 1056 1012 18.73      
14 A" 675 647 0.41      
15 A" 171 164 1.78      

Unscaled Zero Point Vibrational Energy (zpe) 12238.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 11721.1 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 HSEh1PBE/6-31G(2df,p)
ABC
3.20219 0.72055 0.65757

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.682 0.000
B2 -0.020 0.871 0.000
H3 1.056 -0.939 0.000
H4 -0.434 -1.149 0.897
H5 -0.434 -1.149 -0.897
H6 0.015 1.487 -1.028
H7 0.015 1.487 1.028

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55241.10611.09291.09292.40082.4008
B21.55242.10492.24832.24831.19961.1996
H31.10612.10491.75211.75212.83312.8331
H41.09292.24831.75211.79353.29522.6776
H51.09292.24831.75211.79352.67763.2952
H62.40081.19962.83313.29522.67762.0568
H72.40081.19962.83312.67763.29522.0568

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.937 C1 B2 H7 120.937
B2 C1 H3 103.431 B2 C1 H4 115.310
B2 C1 H5 115.310 H3 C1 H4 105.650
H3 C1 H5 105.650 H4 C1 H5 110.275
H6 B2 H7 118.016
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.463      
2 B 0.018      
3 H 0.164      
4 H 0.149      
5 H 0.149      
6 H -0.008      
7 H -0.008      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.120 -0.745 0.000 0.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.408 -0.186 0.000
y -0.186 -15.959 0.000
z 0.000 0.000 -15.204
Traceless
 xyz
x 2.173 -0.186 0.000
y -0.186 -1.653 0.000
z 0.000 0.000 -0.520
Polar
3z2-r2-1.041
x2-y22.551
xy-0.186
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.987 -0.016 0.000
y -0.016 4.302 0.000
z 0.000 0.000 3.754


<r2> (average value of r2) Å2
<r2> 29.025
(<r2>)1/2 5.387