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=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-65.781440
Energy at 298.15K-65.785395
HF Energy-65.464586
Nuclear repulsion energy31.819821
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=FULL/TZVP
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' 3111 2948 16.61      
2 A' 3013 2855 4.17      
3 A' 2619 2482 106.34      
4 A' 1505 1426 2.88      
5 A' 1364 1292 66.30      
6 A' 1293 1225 26.13      
7 A' 1115 1056 67.83      
8 A' 980 929 11.54      
9 A' 570 540 1.23      
10 A" 3160 2994 20.05      
11 A" 2691 2550 154.40      
12 A" 1463 1386 4.46      
13 A" 1092 1035 18.25      
14 A" 698 661 1.98      
15 A" 153 145 1.11      

Unscaled Zero Point Vibrational Energy (zpe) 12413.1 cm-1
Scaled (by 0.9475) Zero Point Vibrational Energy (zpe) 11761.4 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=FULL/TZVP
ABC
3.21662 0.71653 0.65549

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.686 0.000
B2 -0.017 0.874 0.000
H3 1.051 -0.956 0.000
H4 -0.449 -1.137 0.893
H5 -0.449 -1.137 -0.893
H6 0.015 1.488 -1.023
H7 0.015 1.488 1.023

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.56001.10171.09011.09012.40212.4021
B21.56002.11932.24302.24301.19281.1928
H31.10172.11931.75511.75512.84462.8446
H41.09012.24301.75511.78653.28272.6688
H51.09012.24301.75511.78652.66883.2827
H62.40211.19282.84463.28272.66882.0451
H72.40211.19282.84462.66883.28272.0451

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.944 C1 B2 H7 120.944
B2 C1 H3 104.216 B2 C1 H4 114.473
B2 C1 H5 114.473 H3 C1 H4 106.398
H3 C1 H5 106.398 H4 C1 H5 110.051
H6 B2 H7 118.020
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability