(1,1′,3,3′‐Tetra‐ tert ‐butyl‐5,5′‐pentafulvalen) dithallium – Synthese und Kristallstruktur: Ein Beitrag zur Diskussion von nichtklassischen Thallium‐Thallium‐Wechselwirkungen
1991; Wiley; Volume: 124; Issue: 8 Linguagem: Inglês
10.1002/cber.19911240804
ISSN0009-2940
AutoresPeter Jutzi, Jörg Schnittger, M.B. Hursthouse,
Tópico(s)Inorganic Chemistry and Materials
Resumo(1,1′,3,3′‐Tetra‐ tert ‐butyl‐5,5′‐pentafulvalene)dithallium – Synthesis and Crystal Structure: a Contribution to the Discussion of Nonclassical TI(I)‐TI(I) Interactions Reaction of 1,1′,3,3′‐tetra‐ tert ‐butyl‐5,5′‐dihydropentafulvalenediyldilithium with stoichiometric amounts of thallium chloride affords the dinuclear complex (η 5 :(η 5 ‐ t Bu 4 C 10 H 4 )Tl 2 ( 2 ). Compound 2 is air‐and moisture‐sensitive, and photolabile. It crystallizes in the space group P •1 and consists of two (cyclopentadienyl)thallium units which are connected by a central C‐C bond and twisted against each other by 70°. The monomeric units of 2 form a two‐dimensional polymer with a zick‐zack chain of T1 atoms and a periphery of substituted cyclopentadienyl ligands. Rather short T1‐T1 contacts of 3.760 and 3.998 Å are formed within a dimeric substructure. The geometry of the cyclopentadienyl ligands around the shortest T1‐T1 bond is similar to that predicted by the theory for weak T1‐T1 interactions.
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