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Titolo:
N-{2-(4-methoxyphenyltelluro)ethyl}morpholine (L-1) and bis {2-(N-morpholino)ethyl}telluride (L-2): Synthesis and complexation with palladium(II) andmercury(II). Crystal structures of trans-[PdCl2(L-1)(2)] and trans-[PdCl2(L-2)(2)]
Autore:
Singh, AK; Sooriyakumar, J; Husebye, S; Tornroos, KW;
Indirizzi:
Indian Inst Technol, Dept Chem, New Delhi 110016, India Indian Inst Technol New Delhi India 110016 Chem, New Delhi 110016, India Univ Bergen, Dept Chem, N-5007 Bergen, Norway Univ Bergen Bergen Norway N-5007 ergen, Dept Chem, N-5007 Bergen, Norway
Titolo Testata:
JOURNAL OF ORGANOMETALLIC CHEMISTRY
fascicolo: 1-2, volume: 612, anno: 2000,
pagine: 46 - 52
SICI:
0022-328X(20001020)612:1-2<46:N(AB{>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
HETEROCYCLIC ORGANOTELLURIUM COMPOUNDS; PLATINUM(II) COMPLEXES; COORDINATION CHEMISTRY; TRIIRON DODECACARBONYL; X-RAY; LIGANDS; DIORGANOTELLURIDES; TELLURIDE; SPECTRA; TE;
Keywords:
N-{2-(4-methoxyphenyltelluro)ethyl}morpholine; bis{2-(N-morpholino)-ethyl}telluride; palladium(II); mercury(II); complexes; crystal structures;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
38
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 bis {2-(N-morpholino)ethyl}telluride (L-2): Synthesis and complexation with palladium(II) andmercury(II). Crystal structures of trans-[PdCl2(L-1)(2)] and trans-[PdCl2(L-2)(2)]", J ORGMET CH, 612(1-2), 2000, pp. 46-52

Abstract

The reactions of 4-(2-chloroethyl)morpholine hydrochloride with ArTe- and Te2-, generated in situ (under N-2 atmosphere) have resulted in N-{2-(4-methoxyphenyltelluro)ethyl}morpholine (L-1) and bis{2-(N-morpholino)ethyl}telluride (L-2), respectively, which are first tellurated derivatives of morpholine. H-1- and C-13{H-1}-NMR spectra of L-1 are as expected but HETCOR experiments are used to assign the overlapping signals of CH2Te and CH2N in H-1-NMR spectrum of L-2. The complexes of stoichiometries [PdCl2(L-t/L-2)(2)] (1/3) and [HgBr2(L-1/L-2)](2) (2/4) are synthesized. The NMR (H-1 and C-13{H-t}) spectra of all the four complexes have CH2Te and ArC-Te signals deshielded with respect to those of free L-1/L-2, indicating that the two ligands coordinate through Te only. The trans Pd-complexes 1 and 3 are characterized structurally and their Pd-Te bond lengths (average) are 2.596 and 2.600Angstrom, respectively. The Pd-CI bonds in 1 are marginally shorter (average 2.312 Angstrom) in comparison to those of 3 (average 2.325 Angstrom). The geometry of palladium is square planar. The Te-C(aryl) is shorter than Te-C(alkyl). The dimeric mercury complexes 2 and 4 appear to be formed through the formation two bromo bridges between Hg atoms. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 03/12/20 alle ore 04:56:44