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Geometry for N(SiH3)3 (trisilylamine) 1A' C3H

1910171554
InChI=1S/H9NSi3/c2-1(3)4/h2-4H3 INChIKey=

CCD/6-31G*


Point group is C3h
Atom Internal Principal
x (Å) y (Å) z (Å)   a (Å) b (Å) c (Å)
N1 0.0000 0.0000 0.0000   0.0000 0.0000 0.0000
Si2 0.0000 1.7538 0.0000   1.7536 -0.0273 0.0000
Si3 -1.5188 -0.8769 0.0000   -0.9004 -1.5050 0.0000
Si4 1.5188 -0.8769 0.0000   -0.8531 1.5323 0.0000
H5 -1.4224 2.2017 0.0000   2.1792 -1.4565 0.0000
H6 -1.1955 -2.3327 0.0000   -2.3510 -1.1590 0.0000
H7 2.6179 0.1310 0.0000   0.1718 2.6156 0.0000
H8 0.6842 2.3049 1.2060   2.3153 0.6482 1.2060
H9 0.6842 2.3049 -1.2060   2.3153 0.6482 -1.2060
H10 -2.3382 -0.5599 1.2060   -0.5963 -2.3292 1.2060
H11 -2.3382 -0.5599 -1.2060   -0.5963 -2.3292 -1.2060
H12 1.6540 -1.7450 1.2060   -1.7190 1.6810 1.2060
H13 1.6540 -1.7450 -1.2060   -1.7190 1.6810 -1.2060
Atom - Atom Distances (Å)
  N1 Si2 Si3 Si4 H5 H6 H7 H8 H9 H10 H11 H12 H13
N1 1.7538 1.7538 1.7538 2.6212 2.6212 2.6212 2.6898 2.6898 2.6898 2.6898 2.6898 2.6898
Si2 1.7538 3.0377 3.0377 1.4913 4.2578 3.0801 1.4921 1.4921 3.5036 3.5036 4.0536 4.0536
Si3 1.7538 3.0377 3.0377 3.0801 1.4913 4.2578 4.0536 4.0536 1.4921 1.4921 3.5036 3.5036
Si4 1.7538 3.0377 3.0377 4.2578 3.0801 1.4913 3.5036 3.5036 4.0536 4.0536 1.4921 1.4921
H5 2.6212 1.4913 3.0801 4.2578 4.5400 4.5400 2.4296 2.4296 3.1495 3.1495 5.1473 5.1473
H6 2.6212 4.2578 1.4913 3.0801 4.5400 4.5400 5.1473 5.1473 2.4296 2.4296 3.1495 3.1495
H7 2.6212 3.0801 4.2578 1.4913 4.5400 4.5400 3.1495 3.1495 5.1473 5.1473 2.4296 2.4296
H8 2.6898 1.4921 4.0536 3.5036 2.4296 5.1473 3.1495 2.4121 4.1644 4.8125 4.1644 4.8125
H9 2.6898 1.4921 4.0536 3.5036 2.4296 5.1473 3.1495 2.4121 4.8125 4.1644 4.8125 4.1644
H10 2.6898 3.5036 1.4921 4.0536 3.1495 2.4296 5.1473 4.1644 4.8125 2.4121 4.1644 4.8125
H11 2.6898 3.5036 1.4921 4.0536 3.1495 2.4296 5.1473 4.8125 4.1644 2.4121 4.8125 4.1644
H12 2.6898 4.0536 3.5036 1.4921 5.1473 3.1495 2.4296 4.1644 4.8125 4.1644 4.8125 2.4121
H13 2.6898 4.0536 3.5036 1.4921 5.1473 3.1495 2.4296 4.8125 4.1644 4.8125 4.1644 2.4121
Maximum atom distance is 5.1473Å between atoms H6 and H8.
picture of trisilylamine
Calculated Bond Angles (degrees) (Ignoring Hydrogens)
atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
Si2 N1 Si3 120.000 Si2 N1 Si4 120.000
Si3 N1 Si4 120.000
Calculated Bond Angles (degrees) (Involving Hydrogens)
atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
N1 Si2 H5 107.477 N1 Si2 H8 111.675
N1 Si2 H9 111.675 N1 Si3 H6 107.477
N1 Si3 H10 111.675 N1 Si3 H11 111.675
N1 Si4 H7 107.477 N1 Si4 H12 111.675
N1 Si4 H13 111.675 H5 Si2 H8 109.054
H5 Si2 H9 109.054 H6 Si3 H10 109.054
H6 Si3 H11 109.054 H7 Si4 H12 109.054
H7 Si4 H13 109.054 H8 Si2 H9 107.856
H10 Si3 H11 107.856 H12 Si4 H13 107.856

For information on specific bond angles or dihedrals see the geometry comparison page in section Comparisons > Geometry > Bonds, angles.