Indium atoms, reactions

The rather complicated indium-phosphorus cluster framework 24 was obtained by the reaction of indium(III) chloride with PhP(SiMe3)2 in the presence of triethyl-phosphane [Eq. (12)] [29]. Apparently, a complex redox process occurred, in the course of which phosphorus atoms were oxidized by the formation of three P-P bonds, while six indium atoms were reduced from +3 to +2 accompanied by the formation of three In-In bonds. The In-In (average 274 pm) and P-P bond lengths (average 222 pm) represent localized single bonds. Other strategies for the... 

Unsubstituted (3-lactams have instead been obtained, by the same authors, through indium-mediated reaction of imines with alkyl bromoacetates [52]. (3-Lactams having a wide range of substituents linked to the nitrogen atom, such as aryl, aryl alkyl, or allyl groups, could be prepared by this pathway. 

The first azaindatrane [N(CH2CH2NMe)3ln]2 is prepared by the reaction of [In(NEt2)3]2 with N(CH2CH2NMeH)3, in which both indium atoms are pentacoordinate, with widely differing In-N distances. Within [py2Na][py2ln(N3)]4, the In and Na atoms are each hexacoordinated by four azido group and two additional solvent molecules. ... 

Reaction of indium(III) chloride with three equivalents of LiN(PPh2)2 in tetrahydrofuran affords the phosphazenide complex In[(PPh2)2N]3 (31) as a yellow solid. The solid-state structure shows that the six-coordinate indium atom is surrounded by three chelate rings in a propeller-like conformation. 

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