Glen G. Briand

catena-Poly[[bis(pyridine)-lead(II)]bis(μ-penta-fluoro-benzene-thiol-ato)].

The title compound, [Pb(C6F5S)2(C5H5N)2]n, shows the PbII atom in a ψ-trigonal bipyramidal S2N2 bonding environment. Pyridine N atoms occupy axial sites, while thiolate S atoms and a stereochemically active lone pair occupy equatorial sites. Very long intermolecular Pb⋯S interactions [3.618 (4) and 3.614 (4) Å] yield a weakly associated one-dimensional polymeric structure extending parallel to [010].

catena-Poly[bis­[dimeth­yl(pyridine-κN)indium(III)]-μ4-benzene-1,3-diolato-bis­[di­methyl­indium(III)]-μ4-benzene-1,3-diolato]

The title compound, [In2(CH3)4(C6H4O2)(C5H5N)] or [{(CH3)2In}(1,3-O2C6H4){In(CH3)2(py)}]n, (py = pyridine) contains two crystallographically unique InIII ions which are in distorted tetrahedral C2O2 and distorted trigonal-bipyramidal C2O2N coordination environments. The InIII coordination centers are bridged head-to-head via In—O bonds, yielding four-membered In2O2 rings and zigzag polymeric chains along [001].

Bis(μ-diethyl-phosphido-κP:P)bis-[bis(2,4,6-trimethyl-phen-yl)indium(III)].

The title compound, [In2(C9H11)4(C4H10P)2], contains a centrosymmetric In2P2 core with short intermolecular In—P bonds. This core has acute P—In—P and obtuse In—P—In bond angles compared with other [R 2InPR′2]2 analogues, due to the presence of the bulky aromatic substituents on the In atom and the non-sterically demanding ethyl substituents on the P atom.

Synthesis and crystal structure of bis­(μ-2-methyl­benzene­thiol­ato-κ2S:S)bis­[meth­yl(2-methyl­benzene­thiol­ato-κS)indium(III)]

The dinuclear compound, [Me(2-MeC6H4S)In-μ-(2-MeC6H4S)2InMe(2-MeC6H4S)], was prepared from the 1:2 reaction of Me3In and 2-MeC6H4SH in toluene. Its crystal structure exhibits a four-membered In2S2 ring core via bridging (2-MeC6H4S) groups. The dimeric units are further associated into a one-dimensional polymeric structure via intermolecular In⋯S contacts.

Crystal structure of dimethyl-1κ2C-bis(μ-4-methylphenolato-1:2κ2O:O)(N,N,N′,N′-tetramethylethylenediamine-2κ2N,N′)indium(III)lithium(I)

The mixed bimetallic title compound, [InLi(CH3)2(C7H7O)2(C6H16N2)] or [(tmeda)Li-μ-(4-MeC6H4O)2InMe2] (tmeda is N,N,N′,N′-tetramethylethylenediamine), exhibits a four-membered LiO2In ring core via bridging 4-methylphenolate groups. The Li and In atoms are in distorted tetrahedral N2O2 and C2O2 bonding environments, respectively. The Li atom is further chelated by a tmeda group, yielding a spirocyclic structure.