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All results from a given calculation for GeH3CH3 (methyl germane)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at G4
 hartrees
Energy at 0K-2118.169648
Energy at 298.15K-2118.164231
HF Energy-2118.476525
Nuclear repulsion energy119.710703
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 B3LYP/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 A1 3053 2946 5.47      
2 A1 2162 2087 66.88      
3 A1 1268 1224 0.90      
4 A1 851 821 143.76      
5 A1 630 608 18.95      
6 A2 176 169 0.00      
7 E 3134 3025 7.71      
7 E 3134 3025 7.71      
8 E 2164 2088 145.19      
8 E 2164 2088 145.19      
9 E 1472 1420 1.05      
9 E 1472 1420 1.05      
10 E 910 878 8.93      
10 E 910 878 8.93      
11 E 849 819 73.50      
11 E 849 819 73.50      
12 E 490 473 10.98      
12 E 490 473 10.98      

Unscaled Zero Point Vibrational Energy (zpe) 13088.8 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 12630.7 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 B3LYP/6-31G(2df,p)
ABC
1.80010 0.28678 0.28678

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ge1 0.000 0.000 0.389
C2 0.000 0.000 -1.564
H3 0.000 1.433 0.930
H4 -1.241 -0.716 0.930
H5 1.241 -0.716 0.930
H6 0.000 -1.022 -1.950
H7 -0.885 0.511 -1.950
H8 0.885 0.511 -1.950

Atom - Atom Distances (Å)
  Ge1 C2 H3 H4 H5 H6 H7 H8
Ge11.95231.53161.53161.53162.55202.55202.5520
C21.95232.87592.87592.87591.09261.09261.0926
H31.53162.87592.48152.48153.78403.15043.1504
H41.53162.87592.48152.48153.15043.15043.7840
H51.53162.87592.48152.48153.15043.78403.1504
H62.55201.09263.78403.15043.15041.77031.7703
H72.55201.09263.15043.15043.78401.77031.7703
H82.55201.09263.15043.78403.15041.77031.7703

picture of methyl germane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Ge1 C2 H6 110.392 Ge1 C2 H7 110.392
Ge1 C2 H8 110.392 C2 Ge1 H3 110.653
C2 Ge1 H4 110.653 C2 Ge1 H5 110.653
H3 Ge1 H4 108.264 H3 Ge1 H5 108.264
H4 Ge1 H5 108.264 H6 C2 H7 108.535
H6 C2 H8 108.535 H7 C2 H8 108.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ge 0.054      
2 C -0.463      
3 H 0.001      
4 H 0.001      
5 H 0.001      
6 H 0.136      
7 H 0.136      
8 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.903 0.903
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 59.668
(<r2>)1/2 7.725