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Titolo:
Structures of iodophenyltellurium(II) and diiododi-(beta-naphtyl)tellurium(IV)
Autore:
Lang, ES; Fernandez, RM; Silveira, ET; Abram, U; Vazquez-Lopez, EM;
Indirizzi:
Univ Fed Santa Maria, Dept Quim, BR-97111970 Santa Maria, RS, Brazil Univ Fed Santa Maria Santa Maria RS Brazil BR-97111970 BCaria, RS, Brazil Forschungszentrum Rossendorf EV, Inst Radiochem, Dresden, Germany Forschungszentrum Rossendorf EV Dresden Germany ochem, Dresden, Germany Univ Vigo, Dept Quim Inorgan, Vigo, Galicia, Spain Univ Vigo Vigo GaliciaSpain go, Dept Quim Inorgan, Vigo, Galicia, Spain
Titolo Testata:
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
fascicolo: 8, volume: 625, anno: 1999,
pagine: 1401 - 1404
SICI:
0044-2313(199908)625:8<1401:SOIAD>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
CRYSTAL-STRUCTURES; MOLECULAR-STRUCTURES; COMPLEXES; CHEMISTRY; CHLORIDE; IODIDES;
Keywords:
tellurium; organotellurium compounds; secondary bonds; crystal structure;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Lang, ES Univ Fed Santa Maria, Dept Quim, BR-97111970 Santa Maria, RS, Brazil Univ Fed Santa Maria Santa Maria RS Brazil BR-97111970 BC Brazil
Citazione:
E.S. Lang et al., "Structures of iodophenyltellurium(II) and diiododi-(beta-naphtyl)tellurium(IV)", Z ANORG A C, 625(8), 1999, pp. 1401-1404

Abstract

The reactions between diphenyl ditelluride, (PhTe)(2), or di(beta-naphtyl)ditelluride, (beta-naphtylTe)(2), with equivalent amounts of iodine have been reinvestigated and the crystal and molecular structures of iodophenyltellurium(II), (PhTeI)(4), and diiododi-(beta-naphtyl)tellurium(IV), (beta-naphtyl)(2)TeI2. have been determined. The structure of iodophenyltellurium(II) (space group Cc, a = 13.850(5) Angstrom, b = 13.852(3) Angstrom, c = 16.494(6) Angstrom and beta = 101.69(2)degrees, Z = 4) is built up by four PhTeI units which are linked by weak Te-Te interactions with Te-Te distances between 3.152(5) Angstrom and 3.182(4) Angstrom. The angles between the tellurium atoms are approximately 90 degrees giving an almost per feet square. Long range secondary bonds (Te-I: about 4.2 Angstrom) link the tetrameric units to give an infinite two-dimensional network. Iodo(beta-naphtyl)tellurium(II) is less stable than the phenyl derivative. Solutions of this compound decompose under formation of elemental tellurium and (beta-naphtyl)(2)TeI2. (beta-Naphtyl)(2)TeI2 crystallises in the monoclinic space group C2/c (a = 21.198(6) Angstrom, b = 5.8921(8) Angstrom, c = 16.651(5) Angstrom, beta = 114.77(2)degrees). The tellurium atom is situated on a two-fold crystallographic axis and Te-I and Te-C bond lengths of 2.899(1) and 2.108(3) Angstrom have been determined.

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Documento generato il 27/11/20 alle ore 01:43:46