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

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

CCD/cc-pVTZ


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 1.7435 0.0000   1.6778 0.4743 0.0000
Si3 -1.5099 -0.8718 0.0000   -0.4281 -1.6902 0.0000
Si4 1.5099 -0.8718 0.0000   -1.2497 1.2158 0.0000
H5 -1.4162 2.1856 0.0000   2.4885 -0.7682 0.0000
H6 -1.1847 -2.3193 0.0000   -1.9095 -1.7710 0.0000
H7 2.6009 0.1337 0.0000   -0.5790 2.5392 0.0000
H8 0.6819 2.2855 1.1999   2.0138 1.2780 1.1999
H9 0.6819 2.2855 -1.1999   2.0138 1.2780 -1.1999
H10 -2.3202 -0.5522 1.1999   0.0999 -2.3830 1.1999
H11 -2.3202 -0.5522 -1.1999   0.0999 -2.3830 -1.1999
H12 1.6384 -1.7333 1.1999   -2.1136 1.1050 1.1999
H13 1.6384 -1.7333 -1.1999   -2.1136 1.1050 -1.1999
Atom - Atom Distances (Å)
  N1 Si2 Si3 Si4 H5 H6 H7 H8 H9 H10 H11 H12 H13
N1 1.7435 1.7435 1.7435 2.6043 2.6043 2.6043 2.6699 2.6699 2.6699 2.6699 2.6699 2.6699
Si2 1.7435 3.0199 3.0199 1.4836 4.2320 3.0588 1.4827 1.4827 3.4776 3.4776 4.0264 4.0264
Si3 1.7435 3.0199 3.0199 3.0588 1.4836 4.2320 4.0264 4.0264 1.4827 1.4827 3.4776 3.4776
Si4 1.7435 3.0199 3.0199 4.2320 3.0588 1.4836 3.4776 3.4776 4.0264 4.0264 1.4827 1.4827
H5 2.6043 1.4836 3.0588 4.2320 4.5108 4.5108 2.4191 2.4191 3.1229 3.1229 5.1115 5.1115
H6 2.6043 4.2320 1.4836 3.0588 4.5108 4.5108 5.1115 5.1115 2.4191 2.4191 3.1229 3.1229
H7 2.6043 3.0588 4.2320 1.4836 4.5108 4.5108 3.1229 3.1229 5.1115 5.1115 2.4191 2.4191
H8 2.6699 1.4827 4.0264 3.4776 2.4191 5.1115 3.1229 2.3998 4.1310 4.7775 4.1310 4.7775
H9 2.6699 1.4827 4.0264 3.4776 2.4191 5.1115 3.1229 2.3998 4.7775 4.1310 4.7775 4.1310
H10 2.6699 3.4776 1.4827 4.0264 3.1229 2.4191 5.1115 4.1310 4.7775 2.3998 4.1310 4.7775
H11 2.6699 3.4776 1.4827 4.0264 3.1229 2.4191 5.1115 4.7775 4.1310 2.3998 4.7775 4.1310
H12 2.6699 4.0264 3.4776 1.4827 5.1115 3.1229 2.4191 4.1310 4.7775 4.1310 4.7775 2.3998
H13 2.6699 4.0264 3.4776 1.4827 5.1115 3.1229 2.4191 4.7775 4.1310 4.7775 4.1310 2.3998
Maximum atom distance is 5.1115Å between atoms H5 and H12.
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 107.336 N1 Si2 H8 111.440
N1 Si2 H9 111.440 N1 Si3 H6 107.336
N1 Si3 H10 111.440 N1 Si3 H11 111.440
N1 Si4 H7 107.336 N1 Si4 H12 111.440
N1 Si4 H13 111.440 H5 Si2 H8 109.274
H5 Si2 H9 109.274 H6 Si3 H10 109.274
H6 Si3 H11 109.274 H7 Si4 H12 109.274
H7 Si4 H13 109.274 H8 Si2 H9 108.046
H10 Si3 H11 108.046 H12 Si4 H13 108.046

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