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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-65.448032
Energy at 298.15K-65.452019
HF Energy-65.448032
Nuclear repulsion energy31.668444
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/aug-cc-pVDZ
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' 3201 2915 25.97      
2 A' 3112 2834 8.62      
3 A' 2643 2407 134.11      
4 A' 1567 1427 2.00      
5 A' 1428 1301 51.93      
6 A' 1323 1205 38.04      
7 A' 1148 1045 71.56      
8 A' 990 902 11.41      
9 A' 629 573 1.58      
10 A" 3246 2956 33.28      
11 A" 2703 2461 203.49      
12 A" 1527 1391 3.29      
13 A" 1131 1030 21.39      
14 A" 717 653 2.51      
15 A" 132 120 0.44      

Unscaled Zero Point Vibrational Energy (zpe) 12748.4 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 11608.7 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/aug-cc-pVDZ
ABC
3.19819 0.70712 0.64708

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.014 -0.691 0.000
B2 -0.014 0.880 0.000
H3 1.047 -0.983 0.000
H4 -0.457 -1.136 0.892
H5 -0.457 -1.136 -0.892
H6 0.012 1.498 -1.030
H7 0.012 1.498 1.030

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57111.10091.09071.09072.41932.4193
B21.57112.14442.24862.24861.20121.2012
H31.10092.14441.75521.75522.87902.8790
H41.09072.24861.75521.78433.29412.6789
H51.09072.24861.75521.78432.67893.2941
H62.41931.20122.87903.29412.67892.0595
H72.41931.20122.87902.67893.29412.0595

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.959 C1 B2 H7 120.959
B2 C1 H3 105.391 B2 C1 H4 114.074
B2 C1 H5 114.074 H3 C1 H4 106.428
H3 C1 H5 106.428 H4 C1 H5 109.764
H6 B2 H7 118.019
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.351      
2 B -0.231      
3 H -0.183      
4 H -0.222      
5 H -0.222      
6 H 0.254      
7 H 0.254      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.040 -0.498 0.000 0.500
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.749 -0.146 0.000
y -0.146 -16.799 0.000
z 0.000 0.000 -15.958
Traceless
 xyz
x 2.629 -0.146 0.000
y -0.146 -1.945 0.000
z 0.000 0.000 -0.684
Polar
3z2-r2-1.368
x2-y23.050
xy-0.146
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.618 -0.015 0.000
y -0.015 4.642 0.000
z 0.000 0.000 4.218


<r2> (average value of r2) Å2
<r2> 29.685
(<r2>)1/2 5.448