return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: CCSD/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-65.786505
Energy at 298.15K-65.790463
HF Energy-65.466535
Nuclear repulsion energy31.799494
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-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3100 2918 13.35      
2 A' 3000 2824 3.97      
3 A' 2589 2437 107.77      
4 A' 1498 1410 1.92      
5 A' 1348 1268 63.03      
6 A' 1275 1200 22.48      
7 A' 1101 1036 64.00      
8 A' 976 919 12.17      
9 A' 571 537 0.80      
10 A" 3150 2964 16.74      
11 A" 2659 2503 155.10      
12 A" 1456 1370 3.23      
13 A" 1079 1015 19.48      
14 A" 689 648 1.41      
15 A" 160 150 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 12324.4 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 11599.7 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-pVTZ
ABC
3.21692 0.71515 0.65384

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.686 0.000
B2 -0.017 0.876 0.000
H3 1.050 -0.958 0.000
H4 -0.444 -1.141 0.893
H5 -0.444 -1.141 -0.893
H6 0.014 1.489 -1.025
H7 0.014 1.489 1.025

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56171.10151.08921.08922.40462.4046
B21.56172.12132.24612.24611.19481.1948
H31.10152.12131.75061.75062.84782.8478
H41.08922.24611.75061.78633.28672.6723
H51.08922.24611.75061.78632.67233.2867
H62.40461.19482.84783.28672.67232.0499
H72.40461.19482.84782.67233.28672.0499

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.885 C1 B2 H7 120.885
B2 C1 H3 104.262 B2 C1 H4 114.660
B2 C1 H5 114.660 H3 C1 H4 106.083
H3 C1 H5 106.083 H4 C1 H5 110.160
H6 B2 H7 118.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability