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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-65.514910
Energy at 298.15K-65.518789
HF Energy-65.514910
Nuclear repulsion energy31.775448
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 LSDA/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' 3042 2980 8.65      
2 A' 2926 2867 3.76      
3 A' 2529 2478 91.68      
4 A' 1454 1424 7.04      
5 A' 1321 1294 99.46      
6 A' 1216 1191 13.79      
7 A' 1058 1036 58.90      
8 A' 997 976 12.44      
9 A' 567 555 3.03      
10 A" 3102 3039 9.69      
11 A" 2611 2558 133.95      
12 A" 1409 1380 9.12      
13 A" 1046 1025 24.46      
14 A" 679 665 0.00      
15 A" 134 132 5.09      

Unscaled Zero Point Vibrational Energy (zpe) 12045.5 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 11801.0 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 LSDA/6-31G
ABC
3.14642 0.72654 0.66182

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.677 0.000
B2 -0.019 0.863 0.000
H3 1.064 -0.952 0.000
H4 -0.443 -1.141 0.906
H5 -0.443 -1.141 -0.906
H6 0.015 1.489 -1.035
H7 0.015 1.489 1.035

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.53991.11741.10311.10312.40032.4003
B21.53992.11342.24012.24011.20981.2098
H31.11742.11341.76911.76912.85102.8510
H41.10312.24011.76911.81203.30052.6726
H51.10312.24011.76911.81202.67263.3005
H62.40031.20982.85103.30052.67262.0698
H72.40031.20982.85102.67263.30052.0698

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.140 C1 B2 H7 121.140
B2 C1 H3 104.244 B2 C1 H4 114.897
B2 C1 H5 114.897 H3 C1 H4 105.636
H3 C1 H5 105.636 H4 C1 H5 110.437
H6 B2 H7 117.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.656      
2 B 0.116      
3 H 0.195      
4 H 0.183      
5 H 0.183      
6 H -0.011      
7 H -0.011      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.219 -0.929 0.000 0.955
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.616 -0.232 0.000
y -0.232 -15.949 0.000
z 0.000 0.000 -15.347
Traceless
 xyz
x 2.032 -0.232 0.000
y -0.232 -1.467 0.000
z 0.000 0.000 -0.565
Polar
3z2-r2-1.130
x2-y22.332
xy-0.232
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.765 -0.027 0.000
y -0.027 4.346 0.000
z 0.000 0.000 3.750


<r2> (average value of r2) Å2
<r2> 29.080
(<r2>)1/2 5.393