Si(PH2)4 is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four silanetetrayltetrakis(phosphane) molecules. Si(1) is bonded in a tetrahedral geometry to one P(1), one P(2), one P(3), and one P(4) atom. There are four inequivalent P sites. In the first P site, P(1) is bonded in a distorted T-shaped geometry to one Si(1); one H(1,6); and one H(7) atom. In the second P site, P(2) is bonded in a distorted T-shaped geometry to one Si(1); one H(1,6); and one H(2) atom. In the third P site, P(3) is bonded in a distorted T-shaped geometry to one Si(1); one H(3,8); and one H(4) atom. In the fourth P site, P(4) is bonded in a distorted T-shaped geometry to one Si(1); one H(3,8); and one H(5) atom. There are six inequivalent H sites. In the first H site, H(4) is bonded in a single-bond geometry to one P(3) atom. In the second H site, H(5) is bonded in a single-bond geometry to one P(4) atom. In the third H site, H(7) is bonded in a single-bond geometry to one P(1) atom. In the fourth H site, H(1,6) is bonded in a single-bond geometry to one P(2) atom. In the fifth H site, H(2) is bonded in a single-bond geometry to one P(2) atom. In the sixth H site, H(3,8) is bonded in a single-bond geometry to one P(3) atom.
Si(PH2)4 is Indium-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four silanetetrayltetrakis(phosphane) molecules. Si(1) is bonded in a tetrahedral geometry to one P(1), one P(2), one P(3), and one P(4) atom. The Si(1)-P(1) bond length is 2.26 Å. The Si(1)-P(2) bond length is 2.26 Å. The Si(1)-P(3) bond length is 2.26 Å. The Si(1)-P(4) bond length is 2.26 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded in a distorted T-shaped geometry to one Si(1); one H(1,6); and one H(7) atom. The P(1)-H(1,6) bond length is 1.42 Å. The P(1)-H(7) bond length is 1.42 Å. In the second P site, P(2) is bonded in a distorted T-shaped geometry to one Si(1); one H(1,6); and one H(2) atom. The P(2)-H(1,6) bond length is 1.42 Å. The P(2)-H(2) bond length is 1.42 Å. In the third P site, P(3) is bonded in a distorted T-shaped geometry to one Si(1); one H(3,8); and one H(4) atom. The P(3)-H(3,8) bond length is 1.42 Å. The P(3)-H(4) bond length is 1.42 Å. In the fourth P site, P(4) is bonded in a distorted T-shaped geometry to one Si(1); one H(3,8); and one H(5) atom. The P(4)-H(3,8) bond length is 1.42 Å. The P(4)-H(5) bond length is 1.42 Å. There are six inequivalent H sites. In the first H site, H(4) is bonded in a single-bond geometry to one P(3) atom. In the second H site, H(5) is bonded in a single-bond geometry to one P(4) atom. In the third H site, H(7) is bonded in a single-bond geometry to one P(1) atom. In the fourth H site, H(1,6) is bonded in a single-bond geometry to one P(2) atom. In the fifth H site, H(2) is bonded in a single-bond geometry to one P(2) atom. In the sixth H site, H(3,8) is bonded in a single-bond geometry to one P(3) atom.