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All results from a given calculation for CH3BH2 (methylborane)

using model chemistry: MP4/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-65.733931
Energy at 298.15K-65.737853
HF Energy-65.447535
Nuclear repulsion energy31.452602
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 MP4/6-31G*
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' 3109 3037        
2 A' 3009 2940        
3 A' 2621 2561        
4 A' 1527 1492        
5 A' 1387 1355        
6 A' 1284 1255        
7 A' 1115 1089        
8 A' 985 962        
9 A' 594 580        
10 A" 3157 3084        
11 A" 2696 2634        
12 A" 1495 1460        
13 A" 1095 1070        
14 A" 702 686        
15 A" 135 132        

Unscaled Zero Point Vibrational Energy (zpe) 12455.5 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 12167.8 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 MP4/aug-cc-pVDZ
ABC
3.13419 0.70198 0.64123

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.018 -0.692 0.000
B2 -0.018 0.883 0.000
H3 1.065 -0.962 0.000
H4 -0.446 -1.156 0.905
H5 -0.446 -1.156 -0.905
H6 0.014 1.503 -1.039
H7 0.014 1.503 1.039

Atom - Atom Distances (Å)
  C1 B2 H3 H4 H5 H6 H7
C11.57511.11671.10381.10382.42822.4282
B21.57512.14012.27162.27161.20991.2099
H31.11672.14011.77271.77272.87422.8742
H41.10382.27161.77271.81073.32552.7014
H51.10382.27161.77271.81072.70143.3255
H62.42821.20992.87423.32552.70142.0774
H72.42821.20992.87422.70143.32552.0774

picture of methylborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 B2 H6 120.803 C1 B2 H7 120.803
B2 C1 H3 104.015 B2 C1 H4 114.850
B2 C1 H5 114.850 H3 C1 H4 105.944
H3 C1 H5 105.944 H4 C1 H5 110.222
H6 B2 H7 118.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability