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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: QCISD(T)=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-65.740915
Energy at 298.15K-65.744836
HF Energy-65.447568
Nuclear repulsion energy31.471036
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 QCISD(T)=FULL/aug-cc-pVDZ
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' 3075 2983        
2 A' 2967 2878        
3 A' 2563 2487        
4 A' 1460 1417        
5 A' 1316 1277        
6 A' 1243 1206        
7 A' 1078 1046        
8 A' 963 934        
9 A' 549 532        
10 A" 3127 3034        
11 A" 2633 2554        
12 A" 1415 1373        
13 A" 1055 1024        
14 A" 669 649        
15 A" 161 156        

Unscaled Zero Point Vibrational Energy (zpe) 12137.1 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 11774.2 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 QCISD(T)=FULL/aug-cc-pVDZ
ABC
3.13602 0.70310 0.64219

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.691 0.000
B2 -0.018 0.883 0.000
H3 1.065 -0.961 0.000
H4 -0.447 -1.155 0.905
H5 -0.447 -1.155 -0.905
H6 0.014 1.502 -1.038
H7 0.014 1.502 1.038

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57361.11621.10341.10342.42692.4269
B21.57362.13842.26992.26991.20971.2097
H31.11622.13841.77221.77222.87242.8724
H41.10342.26991.77221.81003.32382.6997
H51.10342.26991.77221.81002.69973.3238
H62.42691.20972.87243.32382.69972.0769
H72.42691.20972.87242.69973.32382.0769

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.810 C1 B2 H7 120.810
B2 C1 H3 104.011 B2 C1 H4 114.843
B2 C1 H5 114.843 H3 C1 H4 105.960
H3 C1 H5 105.960 H4 C1 H5 110.215
H6 B2 H7 118.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability