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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-64.754265
Energy at 298.15K-64.758190
HF Energy-64.666612
Nuclear repulsion energy31.631043
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 MP2=FULL/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3511 3121 2.44      
2 A' 3355 2982 2.63      
3 A' 3042 2704 15.80      
4 A' 1734 1541 0.87      
5 A' 1584 1408 22.63      
6 A' 1470 1307 54.38      
7 A' 1227 1091 111.62      
8 A' 1073 954 11.68      
9 A' 741 659 0.99      
10 A" 3562 3167 1.26      
11 A" 3185 2831 18.97      
12 A" 1713 1523 1.50      
13 A" 1229 1092 21.58      
14 A" 794 706 0.86      
15 A" 107 95 1.41      

Unscaled Zero Point Vibrational Energy (zpe) 14163.3 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 12589.8 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 MP2=FULL/STO-3G
ABC
3.21213 0.70232 0.64546

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 -0.692 0.000
B2 -0.011 0.888 0.000
H3 1.050 -1.009 0.000
H4 -0.475 -1.130 0.897
H5 -0.475 -1.130 -0.897
H6 0.012 1.490 -1.011
H7 0.012 1.490 1.011

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57931.10741.10071.10072.40402.4040
B21.57932.17352.25602.25601.17651.1765
H31.10742.17351.77281.77282.88832.8883
H41.10072.25601.77281.79413.27672.6664
H51.10072.25601.77281.79412.66643.2767
H62.40401.17652.88833.27672.66642.0215
H72.40401.17652.88832.66643.27672.0215

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.762 C1 B2 H7 120.762
B2 C1 H3 106.677 B2 C1 H4 113.459
B2 C1 H5 113.459 H3 C1 H4 106.806
H3 C1 H5 106.806 H4 C1 H5 109.174
H6 B2 H7 118.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability