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BIBTEX RIS

The intermediary RTeI as a source of new TeII and TeIV iodides by addition of (PyH)I and KI: Synthesis and structural features of [{RTeI}{RTeI3}]n, [R2Te−TeIR], (PyH)[RTeI2] and (PyH)n[RTeI(μ-I)TeIR]n (R=2,6-dimethylphenyl; Py=pyridine)

2009; Elsevier BV; Volume: 694; Issue: 9-10 Linguagem: Inglês

10.1016/j.jorganchem.2009.01.004

ISSN

1872-8561

Autores

E. Faoro, Gelson Manzoni de Oliveira, Ernesto Schulz Lang,

Tópico(s)

Organometallic Compounds Synthesis and Characterization

Resumo

(DmephTe)2 (dmeph = 2,6-dimethylphenyl) reacts with resublimed iodine or with pyridinium iodide under Ar atmosphere to yield [{RTeI}{RTeI3}]n (1), [R2Te−TeIR] (2), (PyH)[RTeI2] (3) and (PyH)n[RTeI(μ-I)TeIR]n (4) (R = dmeph; Py = pyridine). While mesityl species analogue to 2 and 3 have been already described, the compounds 1 and 4 represent the first organotellurium iodides of their classes reported. In compound 4 a symmetrical, covalent iodine bridge links two RTeI groups, attaining single [RTeI(μ-I)TeIR] anions connected by Te⋯I secondary bonds and stabilized by pyridinium cations.

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