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Titolo:
Structural and spectroscopic studies on three- and two-co-ordinate copper(I) halide tribenzylphosphine complexes
Autore:
Ainscough, EW; Brodie, AM; Burrell, AK; Freeman, GH; Jameson, GB; Bowmaker, GA; Hanna, JV; Healy, PC;
Indirizzi:
Massey Univ, Chem Inst Fundamental Sci, Palmerston North, New Zealand Massey Univ Palmerston North New Zealand Palmerston North, New Zealand Univ Auckland, Dept Chem, Auckland, New Zealand Univ Auckland Auckland New Zealand nd, Dept Chem, Auckland, New Zealand Australian Nucl Sci & Technol Org, NMR Facil, Mat Div C, Menai, NSW 2234, Australia Australian Nucl Sci & Technol Org Menai NSW Australia 2234 234, Australia Griffith Univ, Sch Sci, Brisbane, Qld 4111, Australia Griffith Univ Brisbane Qld Australia 4111 , Brisbane, Qld 4111, Australia
Titolo Testata:
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
fascicolo: 2, , anno: 2001,
pagine: 144 - 151
SICI:
1472-7773(2001):2<144:SASSOT>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
GROUP-11 METAL(I) COMPOUNDS; NUCLEAR-MAGNETIC-RESONANCE; LEWIS-BASE ADDUCTS; CRYSTAL SUPRAMOLECULAR MOTIFS; X = CL; GOLD(I) HALIDES; PHENYL EMBRACES; NMR-SPECTRA; TRIPHENYLPHOSPHINE; RAMAN;
Keywords:
NMR spectroscopy; P; N; S; Se; O; Te; Si-containing ligands; X-ray diffraction; X-ray powder diffraction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Ainscough, EW Massey Univ, Chem Inst Fundamental Sci, Private Bag 11 222, Palmerston North, New Zealand Massey Univ Private Bag 11 222 Palmerston North New Zealand
Citazione:
E.W. Ainscough et al., "Structural and spectroscopic studies on three- and two-co-ordinate copper(I) halide tribenzylphosphine complexes", J CHEM S DA, (2), 2001, pp. 144-151

Abstract

Three-co-ordinate, monomeric 1 : 2 complexes of tribenzylphosphine (PBz(3)) with copper(I) halides, [Cu(PBz(3))(2)X] (X = Cl, Br or I), have been synthesized and characterized by single crystal structure determinations, solid state P-31 CPMAS NMR spectroscopy and low frequency vibrational spectroscopy. The two PBz(3) ligands show different conformational structures and this is reflected in a distorted 'P2CuX' geometry for each complex. Solid state P-31 CPMAS spectra show asymmetric quartets with (1)J(P-31-Cu-63) ranging from 1.23 to 1.46 kHz and asymmetry parameters, d nu (Cu), ranging from 8x 10(9) to 13 x 10(9) Hz(2). Reported also are the synthesis, structure, solid state P-31 NMR and far-IR spectra of the two-co-ordinate complex [Cu(PBz(3))(2)][CuCl2] and the crystal structure of the dimeric 1 : 1 chloride complex, [Cu-2(PBz(3))(2)Cl-2]. 3C(6)H(6), this latter structure being the first of this type reported for the PBz(3) ligand. Attempts to synthesize a 1 : 1 chloro complex using acetonitrile, rather than chloroform, as solventled to the formation of tribenzylphosphine oxide. The conversion of [Cu-2(PBz(3))(2)Cl-2]. 3C(6)H(6) into [Cu(PBz(3))(2)][CuCl2] upon removal of benzene of solvation was followed by far-IR spectroscopy. The vibrational spectra of the bulk 1 : 1 and 1 : 2 complexes are consistent with the crystal structures. Bands due to the nu (CuX) modes of the neutral complexes and those due to the [CuX2](-) ions in the ionic complexes have been assigned, and the relationship between the spectra and the structures of the compounds isdiscussed.

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Documento generato il 04/04/20 alle ore 11:50:41