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

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

MP2/LANL2DZ


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 1.7884 0.0000   0.1425 -1.7827 0.0000
Si3 -1.5488 -0.8942 0.0000   1.4727 1.0147 0.0000
Si4 1.5488 -0.8942 0.0000   -1.6151 0.7680 0.0000
H5 -1.4181 2.2423 0.0000   1.5922 -2.1222 0.0000
H6 -1.2328 -2.3492 0.0000   1.0417 2.4400 0.0000
H7 2.6509 0.1070 0.0000   -2.6339 -0.3178 0.0000
H8 0.6876 2.3344 1.2050   -0.4994 -2.3817 1.2050
H9 0.6876 2.3344 -1.2050   -0.4994 -2.3817 -1.2050
H10 -2.3654 -0.5717 1.2050   2.3124 0.7583 1.2050
H11 -2.3654 -0.5717 -1.2050   2.3124 0.7583 -1.2050
H12 1.6778 -1.7627 1.2050   -1.8129 1.6234 1.2050
H13 1.6778 -1.7627 -1.2050   -1.8129 1.6234 -1.2050
Atom - Atom Distances (Å)
  N1 Si2 Si3 Si4 H5 H6 H7 H8 H9 H10 H11 H12 H13
N1 1.7884 1.7884 1.7884 2.6530 2.6530 2.6530 2.7155 2.7155 2.7155 2.7155 2.7155 2.7155
Si2 1.7884 3.0976 3.0976 1.4889 4.3174 3.1392 1.4909 1.4909 3.5521 3.5521 4.1082 4.1082
Si3 1.7884 3.0976 3.0976 3.1392 1.4889 4.3174 4.1082 4.1082 1.4909 1.4909 3.5521 3.5521
Si4 1.7884 3.0976 3.0976 4.3174 3.1392 1.4889 3.5521 3.5521 4.1082 4.1082 1.4909 1.4909
H5 2.6530 1.4889 3.1392 4.3174 4.5952 4.5952 2.4278 2.4278 3.2043 3.2043 5.2035 5.2035
H6 2.6530 4.3174 1.4889 3.1392 4.5952 4.5952 5.2035 5.2035 2.4278 2.4278 3.2043 3.2043
H7 2.6530 3.1392 4.3174 1.4889 4.5952 4.5952 3.2043 3.2043 5.2035 5.2035 2.4278 2.4278
H8 2.7155 1.4909 4.1082 3.5521 2.4278 5.2035 3.2043 2.4099 4.2150 4.8553 4.2150 4.8553
H9 2.7155 1.4909 4.1082 3.5521 2.4278 5.2035 3.2043 2.4099 4.8553 4.2150 4.8553 4.2150
H10 2.7155 3.5521 1.4909 4.1082 3.2043 2.4278 5.2035 4.2150 4.8553 2.4099 4.2150 4.8553
H11 2.7155 3.5521 1.4909 4.1082 3.2043 2.4278 5.2035 4.8553 4.2150 2.4099 4.8553 4.2150
H12 2.7155 4.1082 3.5521 1.4909 5.2035 3.2043 2.4278 4.2150 4.8553 4.2150 4.8553 2.4099
H13 2.7155 4.1082 3.5521 1.4909 5.2035 3.2043 2.4278 4.8553 4.2150 4.8553 4.2150 2.4099
Maximum atom distance is 5.2035Å between atoms H7 and H10.
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 107.747 N1 Si2 H8 111.481
N1 Si2 H9 111.481 N1 Si3 H6 107.747
N1 Si3 H10 111.481 N1 Si3 H11 111.481
N1 Si4 H7 107.747 N1 Si4 H12 111.481
N1 Si4 H13 111.481 H5 Si2 H8 109.125
H5 Si2 H9 109.125 H6 Si3 H10 109.125
H6 Si3 H11 109.125 H7 Si4 H12 109.125
H7 Si4 H13 109.125 H8 Si2 H9 107.842
H10 Si3 H11 107.842 H12 Si4 H13 107.842

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