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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD/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/cc-pVQZ
 hartrees
Energy at 0K-65.804762
Energy at 298.15K-65.808724
HF Energy-65.470872
Nuclear repulsion energy31.852718
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/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' 3103 2949 13.03      
2 A' 3003 2854 3.68      
3 A' 2591 2463 106.89      
4 A' 1498 1424 2.11      
5 A' 1350 1283 62.33      
6 A' 1273 1210 23.35      
7 A' 1099 1044 62.34      
8 A' 978 930 12.03      
9 A' 573 545 0.75      
10 A" 3153 2997 16.03      
11 A" 2661 2529 152.96      
12 A" 1456 1384 3.57      
13 A" 1080 1026 18.99      
14 A" 689 655 1.40      
15 A" 163 155 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 12334.5 cm-1
Scaled (by 0.9505) Zero Point Vibrational Energy (zpe) 11723.9 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/cc-pVQZ
ABC
3.22341 0.71833 0.65656

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.684 0.000
B2 -0.017 0.873 0.000
H3 1.049 -0.956 0.000
H4 -0.443 -1.139 0.892
H5 -0.443 -1.139 -0.892
H6 0.013 1.486 -1.024
H7 0.013 1.486 1.024

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.55771.10041.08821.08822.39992.3999
B21.55772.11762.24212.24211.19381.1938
H31.10042.11761.74831.74832.84352.8435
H41.08822.24211.74831.78423.28182.6674
H51.08822.24211.74831.78422.66743.2818
H62.39991.19382.84353.28182.66742.0485
H72.39991.19382.84352.66743.28182.0485

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.866 C1 B2 H7 120.866
B2 C1 H3 104.304 B2 C1 H4 114.695
B2 C1 H5 114.695 H3 C1 H4 106.035
H3 C1 H5 106.035 H4 C1 H5 110.135
H6 B2 H7 118.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability