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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G**
 hartrees
Energy at 0K-65.724817
Energy at 298.15K-65.728757
HF Energy-65.448628
Nuclear repulsion energy31.772909
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 CCSD(T)/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' 3145 2983        
2 A' 3046 2889        
3 A' 2649 2512        
4 A' 1531 1452        
5 A' 1384 1313        
6 A' 1302 1235        
7 A' 1123 1065        
8 A' 986 935        
9 A' 585 554        
10 A" 3195 3030        
11 A" 2723 2583        
12 A" 1492 1415        
13 A" 1098 1041        
14 A" 702 666        
15 A" 140 133        

Unscaled Zero Point Vibrational Energy (zpe) 12550.2 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 11903.9 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 CCSD(T)/6-31G**
ABC
3.21850 0.71271 0.65244

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.016 -0.688 0.000
B2 -0.016 0.877 0.000
H3 1.049 -0.969 0.000
H4 -0.453 -1.136 0.893
H5 -0.453 -1.136 -0.893
H6 0.016 1.491 -1.021
H7 0.016 1.491 1.021

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56461.10131.09081.09082.40672.4067
B21.56462.13112.24532.24531.19241.1924
H31.10132.13111.75501.75502.85702.8570
H41.09082.24531.75501.78663.28482.6721
H51.09082.24531.75501.78662.67213.2848
H62.40671.19242.85703.28482.67212.0428
H72.40671.19242.85702.67213.28482.0428

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 121.013 C1 B2 H7 121.013
B2 C1 H3 104.805 B2 C1 H4 114.281
B2 C1 H5 114.281 H3 C1 H4 106.378
H3 C1 H5 106.378 H4 C1 H5 109.955
H6 B2 H7 117.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability