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Titolo:
N-{2-(4-methoxyphenyltelluro)ethyl}morpholine (L-1) and its platinum(II) and ruthenium(II) complexes. Synthesis and crystal structure of L-1 and trans-[PtCl2(L-1)(2)]
Autore:
Singh, AK; Kumar, JS; Butcher, RJ;
Indirizzi:
Indian Inst Technol, Dept Chem, New Delhi 110016, India Indian Inst Technol New Delhi India 110016 Chem, New Delhi 110016, India Howard Univ, Dept Chem, Washington, DC 20059 USA Howard Univ Washington DC USA 20059 , Dept Chem, Washington, DC 20059 USA
Titolo Testata:
INORGANICA CHIMICA ACTA
fascicolo: 1-2, volume: 312, anno: 2001,
pagine: 163 - 169
SICI:
0020-1693(20010129)312:1-2<163:N(AIPA>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
HETEROCYCLIC ORGANOTELLURIUM COMPOUNDS; TRIIRON DODECACARBONYL; METAL-COMPLEXES; LIGANDS; CHEMISTRY; TELLURIUM; TE;
Keywords:
N-{2-(4-methoxyphenyltelluro)ethyl}morpholine; palladium(II) complexes; ruthenium(II) complexes; crystal structures; Te-ligands;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Singh, AK Indian Inst Technol, Dept Chem, New Delhi 110016, India Indian Inst Technol New Delhi India 110016 Delhi 110016, India
Citazione:
A.K. Singh et al., "N-{2-(4-methoxyphenyltelluro)ethyl}morpholine (L-1) and its platinum(II) and ruthenium(II) complexes. Synthesis and crystal structure of L-1 and trans-[PtCl2(L-1)(2)]", INORG CHIM, 312(1-2), 2001, pp. 163-169

Abstract

The first tellurated derivative of morpholine, N-{2-(4-methoxyphenyltelluro)ethyl}morpholine (L-1) has been synthesized by reacting in situ generatedArTe- with 4-(2-chloroethyl)morpholine hydrochloride under N-2 atmosphere. The compound L-1 gives molecular ion peak at m/z 351 and is characterized structurally. The donor atoms N and Te in compound L-1 are rightly orientedfor its ligation in bidentate mode. The Te-C(alkyl) is 0.02 Angstrom longer than Te-C(aryl). The complexes of ligand L-1 having composition [PtCl2(L-1)(2)] (1) and [RuCl2(p-cymene)L-1] (2) have been synthesized. The compound1 has been characterized structurally. The Pt has a square planar geometryin complex 1 and two molecules of ligand L-1 bonded through Te alone are trans to each other (Pt-Te = 2.583(2) Angstrom). The C-13{H-1} NMR spectrum of complex 1 is as expected. The H-1 NMR spectrum of single crystals of complex 1 shows multiplication of signals, which is supported by HETCOR experiments. The complex 2 also has ligand L-1 in a monodentate coordination mode, bonded through Te alone. This is supported by deshielded CH2Te and ArC-Tesignals in H-1 and C-13{H-1} NMR spectra of complex 2 with respect to those of free ligand L-1. The HETCOR spectrum of complex 2 has been used to authenticate the assignments of CH2Te group, as its two protons appear to be magnetically non-equivalent. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 27/11/20 alle ore 01:59:34