Synthesis and crystal structures of new complex salts containing both cationic and anionic tellurium(IV) species: the role of secondary bonds in the arrangement of tellurium based tectons
Document title: Synthesis and crystal structures of new complex salts containing both cationic and anionic tellurium(IV) species: the role of secondary bonds in the arrangement of tellurium based tectons
Journal: Journal of the Brazilian Chemical Society
Database: PERIÓDICA
System number: 000311889
ISSN: 0103-5053
Authors: 1
Institutions: 1Universidade Federal de Santa Maria, Departamento de Quimica, Santa Maria, Rio Grande do Sul. Brasil
Year:
Season: Dic
Volumen: 17
Number: 8
Pages: 1566-1570
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract We report herein the synthesis and the crystal structures of three new tellurium(IV) complexes, [Te(C6H5)(CH3)2]][TeX 4(C6H5 )], X = Cl (1), Br (2), I (3). In these complexes, the secondary bonds promote different structural arrangements due to the tectonic character of the tellurium species. In 1 and 2, the Te···X interactions create a polymeric "zig-zag" chain of the tetrahalo-phenyltellurate(IV) anions. In 3, the secondary Te···I bonds induce a different arrangement for the anions that are organized in a pseudo-dimeric antiparallel fashion
Portuguese abstract Neste trabalho divulgamos a síntese e a estrutura cristalina de uma série de três novos complexos de telúrio(IV), [Te(C6H5)(CH3)2]][TeX 4(C6H5 )], X = Cl (1), Br (2) ou I (3). Nesses complexos, as ligações secundárias promovem diferentes arranjos estruturais, mostrando o caráter tectônico das espécies de telúrio. Em 1 e 2, a interação Te···X promove um arranjo polimérico na forma de "zig-zag" para os ânions tetra-halofeniltelurato(IV). Em 3, as ligações secundárias Te···I induzem um arranjo diferenciado para os ânions, que estão organizados de forma antiparalela
Disciplines: Química
Keyword: Química organometálica,
Haluros de organotelurio,
Tetrahalo-organilteluratos tectónicos,
Síntesis química,
Estructura cristalina
Keyword: Chemistry,
Organometallic chemistry,
Organotellurium halides,
Tectonic tetrahalo-organyltellurates,
Chemical synthesis,
Crystal structure
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