Výsledky vyhledávání - "Martin K. Ehlert"

Synthesis and characterization of the mixed valence Cu(l)/Cu(ll) 3,5-bis(trifluoromethyl)-pyrazolate complex, [Cu(ll)2Cu(l)(F6dmpz)5]

Autor: Martin K. Ehlert, Robert C. Thompson, Alan Storr, David A. Summers

Publikováno v: Canadian Journal of Chemistry. 75:491-498

The reaction of molten 3,5-bis(trifluoromethyl)pyrazole (F6dmpzH) with copper metal shot under an atmosphere of dioxygen yields the green trimetallic mixed valence [Cu(II)2Cu(1)(F6dmpz)5]. Crystals of [Cu(II)2Cu(I)(F6dmpz)5] are triclinic, a = 9.0557

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c076fb37213d0612865a2a393573e343
https://doi.org/10.1139/v97-057

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μ4-Oxo-hexakis(μ-3,5-dimethylpyrazolato-N,N')tetracobalt(II)

Autor: Alan Storr, S. J. Rettig, Robert C. Thompson, James Trotter, Martin K. Ehlert

Publikováno v: Acta Crystallographica Section C Crystal Structure Communications. 50:1023-1026

The title compound [Co 4 O(C 5 H 7 N 2 ) 6 ], consits of a central O atom coordinated by four Co II atoms which are themselves bridged in a pairwise fashion by six exobidentate 3,5-dimethylpyrazolate ligands. The coordination geometry about each Co I

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8959abbf9b26edea9beb645545892d6c
https://doi.org/10.1107/s010827019301337x

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Octamolybdenum oxo-pyrazolate clusters. Syntheses, characterization, and crystal and molecular structures of the Mo(V)/Mo(VI) and Mo(VI) octamolybdenum clusters Mo8(pz)6O18(pzH)6 and Mo8(pz)6O21(pzH)6

Autor: Alan Storr, Martin K. Ehlert, Robert C. Thompson, S. J. Rettig, James Trotter

Publikováno v: Inorganic Chemistry. 32:5176-5182

Two octamolybdenum compounds, containing both bridging pyrazolate and terminal pyrazolc ligands, have been prepared by the reaction of molten pyrazole with molybdenum oxides, and their structure have been determined by single-crystal X-ray diffractio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3c52ccb172ea4e8d32b8e4486704cb9b
https://doi.org/10.1021/ic00075a039

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Oligometallic cobalt 3,5-dimethylpyrazolate complexes: synthesis, structural and magnetic studies

Autor: Alan Storr, Martin K. Ehlert, Robert C. Thompson, James Trotter, Steven J. Rettig

Publikováno v: Canadian Journal of Chemistry. 71:1425-1436

Three oligometallic 3,5-dimethylpyrazolate (dmpz) bridged Co(II) compounds have been synthesized and characterized spectroscopically: dimeric [Co(dmpz)2(Hdmpz)]2, the related oligometallic compound, Co(dmpz)2•0.344(Hdmpz), and the trimetallic [Co(d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b75dab93b5c0d5d1c74a386f7ca8fe02
https://doi.org/10.1139/v93-184

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Metal pyrazolate polymers. Part 4. Synthesis, characterization, and magnetic properties of [Co(pz*)2]x complexes (where pz* = pyrazolate, 3-methylpyrazolate, and 4-substituted 3,5-dimethylpyrazolate)

Autor: Robert C. Thompson, Martin K. Ehlert, Alan Storr

Publikováno v: Canadian Journal of Chemistry. 71:1412-1424

The title compounds were prepared and characterized by X-ray powder diffraction, scanning electron microscopy, vibrational and electronic spectroscopy, and magnetic susceptibility measurements. Indirect evidence supports polymeric one-dimensional cha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bca2dd60667886877f42113399372217
https://doi.org/10.1139/v93-183

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Low-temperature X-ray diffraction studies on [Cu(4-Xpz)2]x linear chain polymers (where X = Cl, Br, CH3, H; pz = pyrazolate)

Autor: Raymond J. Batchelor, Frederick W. B. Einstein, Alan Storr, Martin K. Ehlert, Robert C. Thompson

Publikováno v: Canadian Journal of Chemistry. 71:331-334

Room temperature and low-temperature (110–140 K) powder diffractograms have been obtained for the polymeric compounds [Cu(4-Xpz)2]x (where X = H, CH3, Cl, and Br), and values of the unit cell parameters (orthorhombic, space group Ibam) a, b, and c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60687f0c96b05a08f4a8771ad9927435
https://doi.org/10.1139/v93-049

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Polynuclear pyrazolate complexes of copper. Crystal and molecular structures of [Cu(tmpz)]3, [Cu(3-CO2dmpz)(tmpzH)]2Cu, and [Cu(4-Br-3-CO2mepz)(4-Br-dmpzH)2]2 (where mepz = methylpyrazolate, dmpz = dimethylpyrazolate, and tmpz = trimethylpyrazolate) and magnetic susceptibility studies on the dinuclear complex

Autor: Robert C. Thompson, James Trotter, Martin K. Ehlert, Steven J. Rettig, Alan Storr

Publikováno v: Canadian Journal of Chemistry. 70:2161-2173

The reaction of molten trimethylpyrazole (tmpzH) with copper metal shot in air yields a mixture of the trinuclear copper(I) complex [Cu(tmpz)]3, 1, and the trinuclear copper(I/II) complex [Cu(3-CO2dmpz)(tmpzH)]2Cu, 2 (where dmpz is dimethylpyrazolate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74dadba4939d377ae74ffd51b87c20e2
https://doi.org/10.1139/v92-272

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Metal pyrazolate polymers. Part 3. Synthesis and study of Cu(I) and Cu(II) complexes of 4-Xdmpz (where X = H, Cl, Br, I, and CH3 for Cu(I) and X = H, Cl, Br, and CH3 for Cu(II); dmpz = 3,5-dimethylpyrazolate)

Autor: Robert C. Thompson, Alan Storr, Martin K. Ehlert

Publikováno v: Canadian Journal of Chemistry. 70:1121-1128

The copper(I) complexes [Cu(4-Xdmpz)]3 (where X = H, Cl, Br, I and CH3; dmpz = 3,5-dimethylpyrazolate) and the copper(II) complexes [Cu(4-Xdmpz)2]x have been synthesized and characterized. Qualitative solubility, infrared spectroscopic, and different

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c58e8d93930d29d2eb381324e3735085
https://doi.org/10.1139/v92-148

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Metal pyrazolate polymers. Part 2. Synthesis, structure, and magnetic properties of [Cu(4-Xpz)2]x polymers (where X = Cl, Br, Me, H; pz = pyrazolate)

Autor: Robert C. Thompson, James Trotter, Alan Storr, Steven J. Rettig, Martin K. Ehlert

Publikováno v: Canadian Journal of Chemistry. 69:432-439

Novel and reliable methods for the synthesis of the polymers [Cu(4-Xpz)2]x (where X = H, Cl, Br, and Me; pz = pyrazolate) are presented. The X = Cl compound was obtained as green and brown forms. Single crystals of the polymers with X = Me and X = Cl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d54aeff2b652d566097d1e296fc51ce
https://doi.org/10.1139/v91-065

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Zinc 3,5-dimethylpyrazolate complexes: synthesis and structural studies. The crystal and molecular structure of [Zn2(dmpz)4(Hdmpz)2]

Autor: Steven J. Rettig, Martin K. Ehlert, Robert C. Thompson, Alan Storr, James Trotter

Publikováno v: Canadian Journal of Chemistry. 68:1494-1498

Zinc metal reacts with excess 3,5-dimethylpyrazole (Hdmpz) in the presence of O2 to produce materials of composition Zn(dmpz)2(Hdmpz)y. Thermolysis of these materials results in the loss of Hdmpz and the formation of the [Zn(dmpz)2]x polymer. Under a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4eaaad476acf1457cdd4c989651c7259
https://doi.org/10.1139/v90-229

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