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Synthesis and Characterization of Ionic Cu(I) Perfluorocarboxylate Compounds with 1,4-Bis(diphenylphosphino)butane

Szymańska I., Pazderski L., Kucharek R., Szłyk E.

Polish Journal of Chemistry

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2005

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Vol. 79 / nr 11

1705-1711

EN

A series of ionic Cu(I) perfluorocarboxylate compounds with 1,4-bis(diphenyl - phosphino)bu tane (dppb) of gen eral formula [Cu(dppb)2](RCOO), where R = C2F5, C3F7, C4F9, C6F13, C8F17, was prepared and characterized with MS, IR and 1H, 13C, 19F, 31P NMR spectroscopy. The studied species contained monomeric, bis-chelated [Cu(dppb)2]+ cations and uncoordi nated RCOO- anions. The Cu(I) coordi nation of the diphosphines resulted in slight high-frequency shifts of the 31P NMR resonances of the equivalent phosphorus atoms.

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Copper(I) complexes as potential CVD precursors - studies in the liquid state and gas phase

Szymańska I., Kucharek R., Szłyk E.

Materials Science

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2003

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Vol. 21, No. 2

245-250

EN

Cu(I) complexes with trimethyl phosphite and aliphatic perfluorinated carboxylates of the type [Cu2{P(OMe)3}2(m-RCOO)2] where R = CF3, C2F5, C3F7, C6F13, C7F15, C8F17, C9F19 have been prepared as viscous liquids. In the liquid state the spectroscopic results suggest the dimeric structures for complexes, where the metal ions are linked by the bridging carboxylates. This type of bonding was revealed in the gas phase as well. In the MS conditions the most intensive signals were observed for the [Cu2(RCOO)]+ and [Cu2(RCOO)2]+ fragments. Thermal decomposition of complexes proceeds as a multistage process, yielding a Cu2O in the most of cases.

3

New Polymeric Copper(II) Complexes with Tributy I Phosphite and Perfluorinated Carboxylates

Szłyk E., Szymańska I., Kucharek R., Wrzeszcz G., Rozpłoch F.

Polish Journal of Chemistry

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2001

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Vol. 75, nr 2

215-222

EN

New Cu(II) complexes with tributyl phosphite and aliphatic perfluorinated carboxylates [Cu{P(OBu)3}(ž-OH)(ž-RCOO)]n, where R = CF3, C2F5, C3F7, C6F13, C7F15, were obtained and their spectroscopic (UV-VIS, EPR, MS, IR) and thermal properties were studied. Mass spectra were in favour of the bridging coordination carboxylates and monodentate phosphite and suggest a polymeric structure. EPR spectra and magnetic susceptibility measurements indicate the formation of pentacoordinated Cu(II) in polymeric complexes. Examination of COO absorption bands suggests bridging carboxylates as well as a hydroxo group, whereas tributyl phosphite is monodentately bonded. Thermal decomposition is a multistage process, which in nitrogen and air yields a mixture of Cu2O and Cu2P2O7.

4

New Copper(I) Perfluorinated Carboxylates Complexes with Bis(diphenylphosphine)methane

Szłyk E., Kucharek R., Szymańska I.

Polish Journal of Chemistry

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2001

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Vol. 75, nr 3

337-344

EN

Copper(I) perfluorinated carboxylates complexes with bis(diphenylphosphine)methane (dppm) of general formula [Cu2(ž-dppm)3(RCOO)2] dppm, whereR=C2F5, C4F9, C6F13, C8F17, C9F19, have been prepared and characterized by vibrational, 31P CPMASNMRand 13C CPTOSSB NMR mass spectra in the solid state. 1H, 13C, 19F NMR and variable temperature 31P NMR spectra were measured in solution. Temperature variable 31P NMR spectra revealed at least three dimeric species in equilibrium. IR and mass spectra analyses suggest dimeric complexes with three bridging diphosphines and monodentate carboxylates in the solid state.