mp-757261: Fe2Co(PO4)3 (Trigonal, R-3c, 167)

Fe₂Co(PO₄)₃ crystallizes in the trigonal R̅3c space group. Fe³⁺ is bonded to six O²⁻ atoms to form distorted FeO₆ octahedra that share corners with six equivalent PO₄ tetrahedra and a faceface with one CoO₆ octahedra. There are three shorter (1.93 Å) and three longer (2.10 Å) Fe-O bond lengths. Co³⁺ is bonded to six equivalent O²⁻ atoms to form distorted CoO₆ octahedra that share corners with six equivalent PO₄ tetrahedra and faces with two equivalent FeO₆ octahedra. All Co-O bond lengths are 2.10 Å. P⁵⁺ is bonded to four O²⁻ atoms to form PO₄ tetrahedra that share corners with two equivalent CoO₆ octahedra and corners with four equivalent FeO₆ octahedra. The corner-sharing octahedral tilt angles range from 29-53°. There are two shorter (1.52 Å) and two longer (1.57 Å) P-O bond lengths. There are two inequivalent O²⁻ sites. In the first O²⁻ site, O²⁻ is bonded in a bent 150 degrees geometry to one Fe³⁺ and one P⁵⁺ atom. In the second O²⁻ site, O²⁻ is bonded in a 3-coordinate geometry to one Fe³⁺, one Co³⁺, and one P⁵⁺ atom.

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mp-1176491: MgSnO3 (Trigonal, R-3, 148)

mp-1147553: KCuIO6 (Trigonal, P312, 149)

1,3,5-Benzenetricarbonyl Trichloride 4422-95-1

Solved O linear trigonal planar tetrahedral trigonal

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FeCl3Br3]3- (fac) C3v

Trigonal crystal structure (space group R ¯ 3c, No. 167) of the weak

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