Fig. 5: ORTEPs of sulphido-bridged diantimony compound 3, the bis(phosphine)-coordinated Sb(III)-SePh dication in compound 6, and the bis(phosphine)-coordinated Sb(III)-I dication in compound 7. | Nature Communications

Fig. 5: ORTEPs of sulphido-bridged diantimony compound 3, the bis(phosphine)-coordinated Sb(III)-SePh dication in compound 6, and the bis(phosphine)-coordinated Sb(III)-I dication in compound 7.

From: Smallest acyclic tricationic molecule containing a Bis(phosphine)-stabilized low-valent triantimony-based Unit

Fig. 5: ORTEPs of sulphido-bridged diantimony compound 3, the bis(phosphine)-coordinated Sb(III)-SePh dication in compound 6, and the bis(phosphine)-coordinated Sb(III)-I dication in compound 7.

a ORTEP of 3 [LSb−S−Sb(OTf)4] in the solid state (thermal ellipsoids at 35%, H atoms, and solvent molecule are omitted for clarity), Selected bond lengths [Å] and angles [o]: P1−Sb1 2.569(2), P2−Sb1 2.577(2), Sb1−S1 2.401(1), Sb2−S1 2.423(1); P1−Sb1−P2 86.64(5), Sb1−S1−Sb2 101.65(5). b Molecular structure of the cation in 6 [LSb−SePh]2+ in the solid state (thermal ellipsoids at 35%, H atoms, triflate anions, and solvent molecule are omitted for clarity), Selected bond lengths [Å] and angles [o]: P1−Sb1 2.551(2), P2−Sb1 2.572(2), Sb1−Se1 2.5368(9), Se1−C25 1.942(1); P1−Sb1−P2 88.28(6), Sb1−Se1−C25 94.95(2). c Molecular structure of the cation in 7 [LSbI]2+ in the solid state (thermal ellipsoids at 35%, H atoms, triflate anions, and solvent molecule are omitted for clarity), Selected bond lengths [Å] and angles [o]: P1−Sb1 2.578(2), P2−Sb1 2.587(2), Sb1−I1 2.6972(6); P1−Sb1−P2 85.62(5). The color code refers to the colors used in the crystal structure figures: Sb (magenta), P (orange), O (red), S (yellow), F (light green), Se (light orange), I (dark brown), C (gray).

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