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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-65.846820
Energy at 298.15K-65.850710
HF Energy-65.846820
Nuclear repulsion energy31.751770
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/aug-cc-pVTZ
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' 3003 2970 11.63      
2 A' 2897 2865 4.46      
3 A' 2509 2481 107.35      
4 A' 1422 1406 2.47      
5 A' 1270 1256 75.56      
6 A' 1202 1189 11.90      
7 A' 1048 1036 51.24      
8 A' 961 950 11.69      
9 A' 514 508 0.58      
10 A" 3055 3021 13.16      
11 A" 2578 2550 143.66      
12 A" 1368 1353 4.73      
13 A" 1026 1014 16.96      
14 A" 661 653 0.84      
15 A" 172 170 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 11843.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 11710.8 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/aug-cc-pVTZ
ABC
3.17563 0.72020 0.65646

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 -0.681 0.000
B2 -0.021 0.870 0.000
H3 1.063 -0.931 0.000
H4 -0.428 -1.156 0.903
H5 -0.428 -1.156 -0.903
H6 0.013 1.489 -1.032
H7 0.013 1.489 1.032

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55121.11301.09811.09812.40312.4031
B21.55122.10232.25512.25511.20411.2041
H31.11302.10231.75801.75802.83242.8324
H41.09812.25511.75801.80513.30662.6844
H51.09812.25511.75801.80512.68443.3066
H62.40311.20412.83243.30662.68442.0650
H72.40311.20412.83242.68443.30662.0650

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.909 C1 B2 H7 120.909
B2 C1 H3 102.964 B2 C1 H4 115.627
B2 C1 H5 115.627 H3 C1 H4 105.322
H3 C1 H5 105.322 H4 C1 H5 110.548
H6 B2 H7 118.077
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.574      
2 B -0.095      
3 H 0.228      
4 H 0.206      
5 H 0.206      
6 H 0.014      
7 H 0.014      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.117 -0.765 0.000 0.774
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.927 -0.196 0.000
y -0.196 -16.611 0.000
z 0.000 0.000 -15.824
Traceless
 xyz
x 2.291 -0.196 0.000
y -0.196 -1.735 0.000
z 0.000 0.000 -0.556
Polar
3z2-r2-1.111
x2-y22.684
xy-0.196
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.964 -0.051 0.000
y -0.051 5.418 0.000
z 0.000 0.000 4.606


<r2> (average value of r2) Å2
<r2> 29.456
(<r2>)1/2 5.427