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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: PBEPBEultrafine/3-21G

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/3-21G
 hartrees
Energy at 0K-65.460372
Energy at 298.15K-65.464237
HF Energy-65.460372
Nuclear repulsion energy31.504642
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/3-21G
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' 3006 2979 9.31      
2 A' 2898 2872 4.37      
3 A' 2540 2517 85.72      
4 A' 1489 1476 4.62      
5 A' 1337 1325 72.01      
6 A' 1220 1208 29.57      
7 A' 1065 1055 70.78      
8 A' 964 955 13.14      
9 A' 597 591 1.62      
10 A" 3058 3030 12.75      
11 A" 2618 2594 121.56      
12 A" 1454 1441 6.30      
13 A" 1052 1043 24.42      
14 A" 680 673 0.00      
15 A" 112 111 4.15      

Unscaled Zero Point Vibrational Energy (zpe) 12043.8 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 11934.2 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/3-21G
ABC
3.13568 0.70649 0.64528

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.688 0.000
B2 -0.017 0.879 0.000
H3 1.062 -0.986 0.000
H4 -0.453 -1.145 0.906
H5 -0.453 -1.145 -0.906
H6 0.013 1.502 -1.036
H7 0.013 1.502 1.036

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56661.11911.10491.10492.42302.4230
B21.56662.15422.26022.26021.20981.2098
H31.11912.15421.77281.77282.89222.8922
H41.10492.26021.77281.81203.31652.6914
H51.10492.26021.77281.81202.69143.3165
H62.42301.20982.89223.31652.69142.0728
H72.42301.20982.89222.69143.31652.0728

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.014 C1 B2 H7 121.014
B2 C1 H3 105.447 B2 C1 H4 114.454
B2 C1 H5 114.454 H3 C1 H4 105.711
H3 C1 H5 105.711 H4 C1 H5 110.165
H6 B2 H7 117.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.851      
2 B 0.152      
3 H 0.225      
4 H 0.214      
5 H 0.214      
6 H 0.023      
7 H 0.023      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.182 -0.827 0.000 0.847
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.770 -0.221 0.000
y -0.221 -16.111 0.000
z 0.000 0.000 -15.559
Traceless
 xyz
x 2.066 -0.221 0.000
y -0.221 -1.447 0.000
z 0.000 0.000 -0.618
Polar
3z2-r2-1.237
x2-y22.342
xy-0.221
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.728 -0.047 0.000
y -0.047 4.131 0.000
z 0.000 0.000 3.493


<r2> (average value of r2) Å2
<r2> 29.601
(<r2>)1/2 5.441