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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: QCISD(TQ)/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(TQ)/aug-cc-pVDZ
 hartrees
Energy at 0K-65.736267
Energy at 298.15K-65.740182
HF Energy-65.447487
Nuclear repulsion energy31.434504
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(TQ)/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' 3068 3068        
2 A' 2962 2962        
3 A' 2557 2557        
4 A' 1458 1458        
5 A' 1314 1314        
6 A' 1241 1241        
7 A' 1078 1078        
8 A' 960 960        
9 A' 549 549        
10 A" 3120 3120        
11 A" 2626 2626        
12 A" 1413 1413        
13 A" 1054 1054        
14 A" 669 669        
15 A" 158 158        

Unscaled Zero Point Vibrational Energy (zpe) 12112.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12112.8 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 QCISD(TQ)/aug-cc-pVDZ
ABC
3.12996 0.70124 0.64056

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.692 0.000
B2 -0.018 0.884 0.000
H3 1.065 -0.965 0.000
H4 -0.448 -1.155 0.906
H5 -0.448 -1.155 -0.906
H6 0.014 1.504 -1.039
H7 0.014 1.504 1.039

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57581.11721.10451.10452.42982.4298
B21.57582.14272.27222.27221.21091.2109
H31.11722.14271.77381.77382.87772.8777
H41.10452.27221.77381.81163.32702.7024
H51.10452.27221.77381.81162.70243.3270
H62.42981.21092.87773.32702.70242.0790
H72.42981.21092.87772.70243.32702.0790

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.809 C1 B2 H7 120.809
B2 C1 H3 104.135 B2 C1 H4 114.804
B2 C1 H5 114.804 H3 C1 H4 105.956
H3 C1 H5 105.956 H4 C1 H5 110.192
H6 B2 H7 118.292
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability