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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-65.819826
Energy at 298.15K-65.823690
HF Energy-65.819826
Nuclear repulsion energy31.605179
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 PBEPBEultrafine/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' 3027 2977 12.07      
2 A' 2922 2874 4.09      
3 A' 2540 2498 102.79      
4 A' 1459 1435 2.21      
5 A' 1310 1288 68.68      
6 A' 1217 1197 17.97      
7 A' 1058 1040 64.05      
8 A' 963 947 11.03      
9 A' 532 523 1.30      
10 A" 3078 3028 15.03      
11 A" 2612 2569 144.10      
12 A" 1417 1393 4.17      
13 A" 1036 1019 19.62      
14 A" 664 653 0.19      
15 A" 155 152 2.80      

Unscaled Zero Point Vibrational Energy (zpe) 11994.2 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 11796.3 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 PBEPBEultrafine/6-31G*
ABC
3.15281 0.71235 0.64988

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.020 -0.685 0.000
B2 -0.020 0.875 0.000
H3 1.064 -0.950 0.000
H4 -0.439 -1.156 0.904
H5 -0.439 -1.156 -0.904
H6 0.016 1.498 -1.036
H7 0.016 1.498 1.036

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55951.11551.10281.10282.41572.4157
B21.55952.12232.26262.26261.20901.2090
H31.11552.12231.76591.76592.85682.8568
H41.10282.26261.76591.80883.31872.6957
H51.10282.26261.76591.80882.69573.3187
H62.41571.20902.85683.31872.69572.0714
H72.41571.20902.85682.69573.31872.0714

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.001 C1 B2 H7 121.001
B2 C1 H3 103.761 B2 C1 H4 115.323
B2 C1 H5 115.323 H3 C1 H4 105.508
H3 C1 H5 105.508 H4 C1 H5 110.199
H6 B2 H7 117.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.601      
2 B 0.083      
3 H 0.182      
4 H 0.174      
5 H 0.174      
6 H -0.006      
7 H -0.006      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.162 -0.807 0.000 0.823
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.500 -0.201 0.000
y -0.201 -15.963 0.000
z 0.000 0.000 -15.281
Traceless
 xyz
x 2.122 -0.201 0.000
y -0.201 -1.573 0.000
z 0.000 0.000 -0.549
Polar
3z2-r2-1.098
x2-y22.463
xy-0.201
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.800 -0.023 0.000
y -0.023 4.347 0.000
z 0.000 0.000 3.731


<r2> (average value of r2) Å2
<r2> 29.319
(<r2>)1/2 5.415