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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD(T)=FULL/cc-pVQZ

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)=FULL/cc-pVQZ
 hartrees
Energy at 0K-65.872967
Energy at 298.15K-65.876925
HF Energy-65.470795
Nuclear repulsion energy31.933147
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)=FULL/cc-pVQZ
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' 3098 2992        
2 A' 2990 2887        
3 A' 2594 2504        
4 A' 1488 1437        
5 A' 1337 1291        
6 A' 1272 1228        
7 A' 1095 1057        
8 A' 983 949        
9 A' 555 536        
10 A" 3151 3042        
11 A" 2667 2575        
12 A" 1443 1393        
13 A" 1074 1037        
14 A" 687 663        
15 A" 170 164        

Unscaled Zero Point Vibrational Energy (zpe) 12300.9 cm-1
Scaled (by 0.9656) Zero Point Vibrational Energy (zpe) 11877.8 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 CCSD(T)=FULL/cc-pVQZ
ABC
3.23031 0.72367 0.66098

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.019 -0.682 0.000
B2 -0.019 0.870 0.000
H3 1.051 -0.940 0.000
H4 -0.437 -1.140 0.892
H5 -0.437 -1.140 -0.892
H6 0.015 1.480 -1.023
H7 0.015 1.480 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55161.10031.08701.08702.39212.3921
B21.55162.10212.23872.23871.19161.1916
H31.10032.10211.74661.74662.82412.8241
H41.08702.23871.74661.78493.27722.6625
H51.08702.23871.74661.78492.66253.2772
H62.39211.19162.82413.27722.66252.0455
H72.39211.19162.82412.66253.27722.0455

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.819 C1 B2 H7 120.819
B2 C1 H3 103.558 B2 C1 H4 114.946
B2 C1 H5 114.946 H3 C1 H4 105.972
H3 C1 H5 105.972 H4 C1 H5 110.374
H6 B2 H7 118.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability