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Reported here are the syntheses and molecular structures of three novel arylindium phosphinates, [(2,6- Mes2 C6 H3 In)2(OH)2(O2 PMe2)2] (1), [(2,6-Mes2 C6 H3 In)2(OH)(O2 PPh2)3] (2), and [(2,6-Mes2 C6 H3 In)(O2 PMe5 C3 H)2(H2 O)2] (3), which were obtained by condensation reaction of the m-terphenylindium dihydroxide [(2,6-Mes2 C6 H3 In(OH)2]4 with dimethylphosphinic acid, diphenylphosphinic acid, and 2,2,3,4,4-pentamethylphosphetanic acid, respectively.

Two trinuclear stannaindoxanes (2,6-Mes2C6H3In)(t-Bu2Sn)2(μ3-O)(μ-OH)2(μ-Cl)Cl (1) and (2,6-Mes2C6H3In)2(t-Bu2Sn)(μ3-O)O(μ-OH)2 (2) were obtained by the reaction of (t-Bu2SnO)3 with [2,6-Mes2C6H3In(μ-Cl)Cl]2 and [2,6-Mes2C6H3In(μ-OH)2]4, respectively. Attempts at crystallizing 2 by slow evaporation of a CHCl3 solution proceeded with the advantageous absorption of CO2 from the air and yielded the trinuclear indium hydrogen carbonate cluster (2,6-Mes2C6H3In)3(CO3H)2(μ-OH)4 (3). More rationally, 3 was prepared when a CHCl3 solution of [2,6-Mes2C6H3In(μ-OH)2]4 was purged with gaseous CO2.

The reaction of 8-Me2NC10H6Li·Et2O with InCl3 and TlCl, respectively, followed by work-up under aerobic conditions, provided the intramolecularly coordinated diarylelement chlorides [(8-Me2NC10H6)2E]Cl (1, E=In; 2, E=Tl) in reasonable yields. Single crystal X-ray structure analyses of 1 and 2 revealed that both compounds essentially contain centrosymmetric dimers of [(8-Me2NC10H6)2E]+ cations (E=In, Tl) that are loosely associated by the chloride ions.

The reaction of 8-Me2NC10H6Li·Et2O with InCl3 and TlCl, respectively, followed by work-up under aerobic conditions, provided the intramolecularly coordinated diarylelement chlorides [(8-Me2NC10H6)2E]Cl ( 1, E=In; 2, E=Tl) in reasonable yields. Single crystal X-ray structure analyses of 1 and 2 revealed that both compounds essentially contain centrosymmetric dimers of [(8-Me2NC10H6)2E]+ cations (E=In, Tl) that are loosely associated by the chloride ions. [ABSTRACT FROM AUTHOR]