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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-65.925846
Energy at 298.15K-65.929771
HF Energy-65.925846
Nuclear repulsion energy31.758147
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 mPW1PW91/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' 3106 2976 14.11      
2 A' 2999 2874 3.56      
3 A' 2568 2461 113.17      
4 A' 1450 1390 2.59      
5 A' 1308 1254 74.56      
6 A' 1229 1178 13.16      
7 A' 1073 1028 56.81      
8 A' 980 940 10.56      
9 A' 537 515 0.59      
10 A" 3162 3030 15.56      
11 A" 2643 2532 153.33      
12 A" 1400 1342 4.31      
13 A" 1051 1007 18.28      
14 A" 675 646 1.00      
15 A" 167 160 1.45      

Unscaled Zero Point Vibrational Energy (zpe) 12174.0 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 11666.4 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 mPW1PW91/aug-cc-pVDZ
ABC
3.17439 0.72001 0.65644

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.682 0.000
B2 -0.020 0.870 0.000
H3 1.060 -0.939 0.000
H4 -0.435 -1.149 0.901
H5 -0.435 -1.149 -0.901
H6 0.014 1.490 -1.034
H7 0.014 1.490 1.034

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55201.10991.09661.09662.40512.4051
B21.55202.10702.24982.24981.20551.2055
H31.10992.10701.75821.75822.83942.8394
H41.09662.24981.75821.80163.30252.6800
H51.09662.24981.75821.80162.68003.3025
H62.40511.20552.83943.30252.68002.0672
H72.40511.20552.83942.68003.30252.0672

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.924 C1 B2 H7 120.924
B2 C1 H3 103.413 B2 C1 H4 115.221
B2 C1 H5 115.221 H3 C1 H4 105.656
H3 C1 H5 105.656 H4 C1 H5 110.458
H6 B2 H7 118.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.530      
2 B -0.730      
3 H -0.193      
4 H -0.255      
5 H -0.255      
6 H 0.452      
7 H 0.452      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.096 -0.682 0.000 0.689
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.750 -0.182 0.000
y -0.182 -16.469 0.000
z 0.000 0.000 -15.687
Traceless
 xyz
x 2.327 -0.182 0.000
y -0.182 -1.750 0.000
z 0.000 0.000 -0.578
Polar
3z2-r2-1.155
x2-y22.718
xy-0.182
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.792 -0.039 0.000
y -0.039 5.084 0.000
z 0.000 0.000 4.424


<r2> (average value of r2) Å2
<r2> 29.360
(<r2>)1/2 5.419