Magnetic and spectroscopic properties of poly-bis(μ-diphenylphosphinato)copper(II)

Du, Jing-Long; Oliver, Katherine W.; Thompson, Robert C.

doi:10.1016/s0020-1693(00)86368-9

Cited by 8 publications

(7 citation statements)

References 7 publications

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“…Earlier studies on the dialkylphosphinates of copper(II) showed these materials to have interesting magnetic properties, different compounds exhibiting either ferromagnetic or antiferromagnetic exchange interactions. Ligand-mediated exchange was indicated by single-crystal X-ray diffraction studies on several of the compounds which revealed extended chain polymeric structures in which metal ions in compressed tetrahedral environments are doubly bridged by phosphinate ligands . Accordingly, the variable-temperature magnetic behavior of these compounds agreed well with that predicted by theory for extended chains of S = 1 / 2 metal ions …”

Section: Introductionsupporting

confidence: 58%

Crystal Structure and Magnetic Behavior of Copper(II) Dimethylphosphinate: A Chain Polymer Containing Triangular Trimetallic Bis(μ-dimethylphosphinato)copper(II) Units

et al. 1997

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Section: Introductionsupporting

confidence: 58%

Crystal Structure and Magnetic Behavior of Copper(II) Dimethylphosphinate: A Chain Polymer Containing Triangular Trimetallic Bis(μ-dimethylphosphinato)copper(II) Units

et al. 1997

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“…For example, copper(I1) diphenylphosphinate, a polymeric chain compound in which square planar metal ions are linked by double phosphinate bridges (4) exhibits weak ferromagnetism (5). In the present work, low temperature magnetic susceptibility studies reveal weak antiferromagnetism in all of the materials studied.…”

Section: Introductionmentioning

confidence: 48%

Synthesis, structure, and magnetic properties of diphenylphosphinates of cobalt(II) and manganese(II). The crystal and molecular structures of the γ forms of poly-bis(μ-diphenylphosphinato)cobalt(II) and manganese(II)

Du¹,

Rettig²,

Thompson³

et al. 1991

Can. J. Chem.

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. Can. J. Chem. 69,277 (1991).The synthesis of the P and y forms of M(Ph2P02)2 where M = Co and Mn are described and the compounds are characterized by infrared spectroscopy, differential scanning calorimetry, X-ray powder diffraction, and low-temperature (2-80 K) magnetic susceptibility studies. Single crystal X-ray diffraction studies are reported on the y forms. Crystals of the y forms of poly-bis(k-diphenylphosphinato)cobalt(II) and poly-bis(k-diphenylphosphinato)manganese(II) are isomorphous, crystallizing with 4 formula units per unit-cell in the monoclinic space group P2'/c. Lattice constants are a = 8.080 (2) [Traduit par la rkdaction]

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“…Recrystallisation of the yellow material from EtOH yielded the pure complex and from the mother liquor we obtained blue crystals representing the Cu(II) coordination polymer [Cu(O PPh 2 ) 2 ] n (2) which has been reported before. [69][70][71] Diphenylphosphinate À O 2 PPh 2 is very probably the product of the assumed oxidation of the ligand and subsequent hydrolysis.…”

Section: Reactions Of the Pnp Ntph -Ph Ligand With Cu(ii) Precursorsmentioning

confidence: 99%

“…Complexes of this ligand were described for Cr(III), Fe(III), Mn(II), Co(II), Ni(II), and UO 2 2 + [74] and also Ag(I) [75] and Cu(I). [76] From Cu(II), so far only the homoleptic polymeric complex [Cu(O 2 PPh 2 ) 2 ] n [69][70][71] and some mixed-ligand oligonuclear complexes such as [Cu 4 (μ-dppi) 4…”

Section: Reactions Of the Pnp Ntph -Ph Ligand With Cu(ii) Precursorsmentioning

confidence: 99%

Redox Instability of Copper(II) Complexes of a Triazine‐Based PNP Pincer

et al. 2021

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The new Cu(I) complex [Cu(PNP NTPh-Ph)Cl] (1) containing the tridentate PNP pincer ligand N,N'-bis(diphenylphosphino)-2,6diamino-4-phenyl-1,3,5-triazine was obtained from the reaction of [Cu(SMe 2)Cl] n with the ligand as ether solvate 1. 0.5Et 2 O. 1 was independently obtained from a reaction mixture containing the ligand and the Cu(II) precursor CuCl 2. 2H 2 O in 50 % yield alongside with the Cu(II) coordination polymer [Cu(O 2 PPh 2) 2 ] n (2). From the reaction of Cu(NO 3) 2 • 3H 2 O with PNP NTPh-Ph in the presence of pyridine the complexes [Cu(O 2 PPh 2) 2 (Py) 2 (H 2 O)] (3), [Cu(O 2 PPh 2)(Py) 2 (NO 3)] 2 (4), and [Cu(Py) 4 (NO 3) 2 ]. Py (5), were obtained, 2, 3, and 4 contain diphenyl-phosphinate ligands. The underlying redox reaction of the ligand and Cu(II) yielding the oxidised ligands observed in the by-products and the Cu(I) product complex was further studied using electrochemistry and UV-vis spectroelectrochemistry. Attempts to synthesise the Cu(II) complex [Cu(PNP NTPh-Ph)(NO 3) 2 ] (6) in a mechanochemical experiment gave evidence for this unprecedented species from ESI-MS(+) and EPR spectroscopy but also revealed its very high sensitivity to air and moisture. The catalytic activity of 1 was investigated in the azide-alkyne cycloaddition yielding various 1-benzyl-4-phenyl-1H-1,2,3-triazoles. The environmentally benign ("green") and cheap EtOH/H 2 O solvent mixture turned out to be very suitable. Melting points, FT-IR, and NMR spectra of the triazole products were analysed.

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Magnetic and spectroscopic properties of poly-bis(μ-diphenylphosphinato)copper(II)

Cited by 8 publications

References 7 publications

Crystal Structure and Magnetic Behavior of Copper(II) Dimethylphosphinate: A Chain Polymer Containing Triangular Trimetallic Bis(μ-dimethylphosphinato)copper(II) Units

Crystal Structure and Magnetic Behavior of Copper(II) Dimethylphosphinate: A Chain Polymer Containing Triangular Trimetallic Bis(μ-dimethylphosphinato)copper(II) Units

Synthesis, structure, and magnetic properties of diphenylphosphinates of cobalt(II) and manganese(II). The crystal and molecular structures of the γ forms of poly-bis(μ-diphenylphosphinato)cobalt(II) and manganese(II)

Redox Instability of Copper(II) Complexes of a Triazine‐Based PNP Pincer

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