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/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-65.766575
Energy at 298.15K-65.770534
HF Energy-65.451893
Nuclear repulsion energy31.830494
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/6-31G(2df,p)
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' 3145 2962 10.29      
2 A' 3048 2870 2.64      
3 A' 2645 2491 89.42      
4 A' 1522 1433 1.48      
5 A' 1367 1287 55.41      
6 A' 1284 1209 23.79      
7 A' 1108 1044 67.81      
8 A' 985 927 12.41      
9 A' 570 537 0.77      
10 A" 3195 3008 12.63      
11 A" 2720 2561 124.79      
12 A" 1488 1401 3.12      
13 A" 1085 1021 19.24      
14 A" 694 653 0.74      
15 A" 160 151 1.14      

Unscaled Zero Point Vibrational Energy (zpe) 12506.6 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 11776.2 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/6-31G(2df,p)
ABC
3.22594 0.71664 0.65528

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.017 -0.685 0.000
B2 -0.017 0.875 0.000
H3 1.049 -0.956 0.000
H4 -0.443 -1.142 0.892
H5 -0.443 -1.142 -0.892
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
C11.55931.10071.08931.08932.40132.4013
B21.55932.11902.24602.24601.19301.1930
H31.10072.11901.74891.74892.84412.8441
H41.08932.24601.74891.78433.28522.6724
H51.08932.24601.74891.78432.67243.2852
H62.40131.19302.84413.28522.67242.0461
H72.40131.19302.84412.67243.28522.0461

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.911 C1 B2 H7 120.911
B2 C1 H3 104.285 B2 C1 H4 114.826
B2 C1 H5 114.826 H3 C1 H4 105.984
H3 C1 H5 105.984 H4 C1 H5 109.972
H6 B2 H7 118.085
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability