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 GeH3CH3 (methyl germane)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-2116.793808
Energy at 298.15K-2116.800094
HF Energy-2116.793808
Nuclear repulsion energy120.360738
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 mPW1PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3095 2935 6.54      
2 A1 2081 1973 67.19      
3 A1 1326 1258 3.01      
4 A1 843 799 129.42      
5 A1 636 603 15.76      
6 A2 174 165 0.00      
7 E 3187 3023 6.37      
7 E 3187 3023 6.37      
8 E 2104 1995 140.32      
8 E 2104 1995 140.32      
9 E 1508 1430 2.62      
9 E 1508 1430 2.62      
10 E 919 871 0.00      
10 E 919 871 0.00      
11 E 872 827 80.81      
11 E 872 827 80.81      
12 E 499 473 12.54      
12 E 499 473 12.54      

Unscaled Zero Point Vibrational Energy (zpe) 13165.3 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 12484.6 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 mPW1PW91/6-31G*
ABC
1.78374 0.28998 0.28998

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ge1 0.000 0.000 0.385
C2 0.000 0.000 -1.554
H3 0.000 1.442 0.932
H4 -1.249 -0.721 0.932
H5 1.249 -0.721 0.932
H6 0.000 -1.023 -1.936
H7 -0.886 0.512 -1.936
H8 0.886 0.512 -1.936

Atom - Atom Distances (Å)
  Ge1 C2 H3 H4 H5 H6 H7 H8
Ge11.93941.54181.54181.54182.53672.53672.5367
C21.93942.87382.87382.87381.09231.09231.0923
H31.54182.87382.49702.49703.78163.14243.1424
H41.54182.87382.49702.49703.14243.14243.7816
H51.54182.87382.49702.49703.14243.78163.1424
H62.53671.09233.78163.14243.14241.77261.7726
H72.53671.09233.14243.14243.78161.77261.7726
H82.53671.09233.14243.78163.14241.77261.7726

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 110.458 Ge1 C2 H7 110.458
Ge1 C2 H8 110.458 C2 Ge1 H3 110.765
C2 Ge1 H4 110.765 C2 Ge1 H5 110.765
H3 Ge1 H4 108.147 H3 Ge1 H5 108.147
H4 Ge1 H5 108.146 H6 C2 H7 108.467
H6 C2 H8 108.467 H7 C2 H8 108.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ge 0.025      
2 C -0.690      
3 H 0.024      
4 H 0.024      
5 H 0.024      
6 H 0.198      
7 H 0.198      
8 H 0.198      


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 -0.885 0.885
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.994 0.000 0.000
y 0.000 -26.994 0.000
z 0.000 0.000 -26.749
Traceless
 xyz
x -0.123 0.000 0.000
y 0.000 -0.123 0.000
z 0.000 0.000 0.245
Polar
3z2-r20.490
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.392 0.000 0.000
y 0.000 5.392 0.000
z 0.000 0.000 6.254


<r2> (average value of r2) Å2
<r2> 59.275
(<r2>)1/2 7.699