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K(RhP)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. K is bonded in a body-centered cubic geometry to eight equivalent P atoms. All K–P bond lengths are 3.45 Å. Rh is bonded to four equivalent P atoms to form a mixture of corner and edge-sharing RhP4 tetrahedra. All Rh–P bond lengths are 2.35 Å. P is bonded in a 8-coordinate geometry to four equivalent K and four equivalent Rh atoms.
Ce(RhP)2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to eight Rh and eight P atoms. There are four shorter (3.19 Å) and four longer (3.21 Å) Ce–Rh bond lengths. There are four shorter (3.12 Å) and four longer (3.15 Å) Ce–P bond lengths. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 9-coordinate geometry to four equivalent Ce and five P atoms. There are four shorter (2.35 Å) and one longer (2.36 Å) Rh–P bond lengths. In the second Rh site, Rh is bonded in a 12-coordinate geometry to four equivalent Ce and four equivalent P atoms. All Rh–P bond lengths are 2.47 Å. There are two inequivalent P sites. In the first P site, P is bonded in a 8-coordinate geometry to four equivalent Ce and four equivalent Rh atoms. In the second P site, P is bonded in a 9-coordinate geometry to four equivalent Ce and five Rh atoms.
CaRh2P2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ca is bonded in a 8-coordinate geometry to eight equivalent Rh and eight equivalent P atoms. All Ca–Rh bond lengths are 3.16 Å. All Ca–P bond lengths are 3.09 Å. Rh is bonded in a 12-coordinate geometry to four equivalent Ca and four equivalent P atoms. All Rh–P bond lengths are 2.41 Å. P is bonded in a 9-coordinate geometry to four equivalent Ca, four equivalent Rh, and one P atom. The P–P bond length is 2.26 Å.
SrRh2P2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr is bonded in a distorted body-centered cubic geometry to eight equivalent P atoms. All Sr–P bond lengths are 3.27 Å. Rh is bonded to four equivalent P atoms to form a mixture of distorted edge and corner-sharing RhP4 tetrahedra. All Rh–P bond lengths are 2.37 Å. P is bonded in a 8-coordinate geometry to four equivalent Sr and four equivalent Rh atoms.
Eu(RhP)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Eu is bonded in a 8-coordinate geometry to eight equivalent Rh and eight equivalent P atoms. All Eu–Rh bond lengths are 3.21 Å. All Eu–P bond lengths are 3.09 Å. Rh is bonded in a 12-coordinate geometry to four equivalent Eu, four equivalent Rh, and four equivalent P atoms. All Rh–Rh bond lengths are 2.86 Å. All Rh–P bond lengths are 2.43 Å. P is bonded in a 9-coordinate geometry to four equivalent Eu, four equivalent Rh, and one P atom. The P–P bond length is 2.30 Å.
BaRh2P2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ba is bonded in a body-centered cubic geometry to eight equivalent P atoms. All Ba–P bond lengths are 3.40 Å. Rh is bonded to four equivalent P atoms to form a mixture of corner and edge-sharing RhP4 tetrahedra. All Rh–P bond lengths are 2.37 Å. P is bonded in a 8-coordinate geometry to four equivalent Ba and four equivalent Rh atoms.
HPr is Wurtzite structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Pr is bonded to four equivalent H atoms to form corner-sharing PrH4 tetrahedra. There are three shorter (2.35 Å) and one longer (2.41 Å) Pr–H bond lengths. H is bonded to four equivalent Pr atoms to form corner-sharing HPr4 tetrahedra.