Výsledky vyhledávání - "Clifford A. L. Becker"

Dynamics of the reactions of pentakis(t-octylisocyanide)cobalt(II) complex with triarylphosphines

Autor: Clifford A. L. Becker, Godiraone Ramokongwa, Olayinka A. Oyetunji

Publikováno v: Journal of Coordination Chemistry. 66:2489-2498

The reactions of freshly prepared solutions of [Co(CNC8H17-t)5](ClO4)2 with three triarylphosphines, PR3 (R = Ph, C6H4Me-p, C6H4OMe-p), were investigated in dichloromethane under pseudo-first-order conditions and with temperatures maintained at ± 0.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c01ee15cd281a3e42ab1b223da6fe381
https://doi.org/10.1080/00958972.2013.807918

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Synthesis and selected reactions of pentakis ( t -octylisocyanide)cobalt(II) complexes

Autor: Olebogeng Ramotadima, Jamil Ahmad, Victoria B. Makono, Clifford A. L. Becker, Kabelo C. Baipoledi

Publikováno v: Journal of Coordination Chemistry. 61:3375-3389

The ligand 1,1,3,3-tetramethylbutylisocyanide, CNCMe2CH2CMe3, i.e. t-octylisocyanide, with Co(ClO4)2 · 6H2O or Co(BF4)2 · 6H2O in ethanol, produces pentakis(alkylisocyanide)cobalt(II) complexes, [Co(CNC8H17-t)5](ClO4)2 (1) and [Co(CNC8H17-t)5](BF4)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::efd80a900533b42f0fc78c7f520a339e
https://doi.org/10.1080/00958970802054334

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Syntheses of tetrakis(benzylisocyanide)bis(tri-i-propylphosphite) cobalt(III) tetrafluoroborate: comparison with trialkylphosphine–alkylisocyanide complexes of cobalt(III)

Autor: Clifford A. L. Becker, Jamil Ahmad, Kabo Mosetlha

Publikováno v: Transition Metal Chemistry. 32:799-802

Tetrakis(benzylisocyanide)bis(tri-i-propylphosphite)cobalt(III) tetrafluoroborate, [Co(CNCH2Ph)4{P(OCHMe2)3}2] (BF4)3, has been synthesized by ligand substitution of both [Co(CNCH2Ph)4{OAs(C6H4Me-p)3}2](BF4)3 and [Co(CNCH2Ph)4(OSbPh3)2](BF4)3. IR and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::55b6600bc3e3fcc0a3f52f19a809927e
https://doi.org/10.1007/s11243-007-0262-y

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Chelate complexes from diphosphine substitution in pentakis(arylisocyanide)cobalt(I) complexes

Autor: Clifford A. L. Becker, Foster Mbaiwa

Publikováno v: Journal of Coordination Chemistry. 60:153-161

Four chelate complexes, [Co(CNC6H3 iPr2-2,6)3P(C6H4Me-p)2CH2CH2P(C6H4Me-p)2]BF4, [Co(CNC6H3 iPr2-2,6)3PPh2CH=CHPPh2-cis]BF4, [Co(CNC6H3 iPr2-2,6)3PPh2C6H4PPh2-o]BF4, and [Co(CNC6H3 iPr2-2,6)3P(C6H4CF3-p)2CH2CH2P(C6H4CF3-p)2]BF4, have been synthesized

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::67fe2344d42ae542f7e8c00705375762
https://doi.org/10.1080/00958970600763201

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Kinetic studies on the reactions of some tetrakis(arylisocyanide)cobalt(II) complexes with pyridine in 2,2,2-trifluoroethanol

Autor: Olayinka A. Oyetunji, Clifford A. L. Becker, Banyaladzi D. Paphane

Publikováno v: Transition Metal Chemistry. 31:951-957

The interaction of pyridine with four tetrakis(arylisocyanide)cobalt(II) complexes, [Co(CNR)4(ClO4)2] R = 2,6-Me2C6H3 (A), 2,4,6-Me3C6H2 (B), 2,6-Et2C6H3 (C) and 2,6-iPr2C6H3 (D), have been studied in 2,2,2-trifluoroethanol medium. The kinetics of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8af84bc3ddae4a7dd354d6db5a98dd6d
https://doi.org/10.1007/s11243-006-0090-5

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Syntheses of tris(t-butylisocyanide)bis(tri-p-dimethyl- aminophenylphosphine)cobalt(I) and cobalt(II) perchlorates: a reversal of the usual stabilities of cobalt oxidation states

Autor: Clifford A. L. Becker

Publikováno v: Journal of Coordination Chemistry. 59:1407-1411

The complexes [Co(CNCMe3)3{P(C6H4NMe2-p)3}2](ClO4)2 and [Co(CNCMe3)3{P(C6H4NMe2 -p)3}2]ClO4 are reported. The Co(II) complex, formed by reaction of excess triarylphos-phine with the alkylisocyanide Co(II) complex, is stable and the favoured product.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::240f23acc35d0aa6c6cffd564db6090d
https://doi.org/10.1080/00958970500512708

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Diphosphine substitution in pentakis(arylisocyanide)cobalt(I) complexes; 31P NMR, cyclic voltammetric and ESI mass spectrometry studies

Autor: Clifford A. L. Becker, Foster Mbaiwa

Publikováno v: Inorganica Chimica Acta. 359:1041-1049

Five new complexes of the type [Co(CNC 6 H 3 i Pr 2 -2,6) 4 PPh 2 -R′-PPh 2 ]X, X = BF 4 , ClO 4 ; R′ =–(CH 2 ) 2 – ( 1 ), –(CH 2 ) 3 – ( 2 ), –CH CH- trans ( 3 ), –C C– ( 4 ) and –C 6 H 4 - p ( 5 ); and two new bimetallic complex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29d9282475fd795e09741c1c51749c44
https://doi.org/10.1016/j.ica.2005.11.006

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Labile Substitution Reactions in Diamagnetic tetrakis(Alkylisocyanide)bis(triarylphosphine)cobalt(III) Complexes by Tri‐n‐propylphosphine

Autor: Clifford A. L. Becker, Boycie J. Mmolotsi

Publikováno v: Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry. 35:691-694

The diamagnetic alkylisocyanide‐triarylphosphine Co(III) complexes [Co(CNC6H11)4{P(C6H4OMe‐p)3}2](ClO4)3, [Co(CNC6H11)4{P(C6H4Me‐p)3}2](ClO4)3, [Co(CNC6H11)4(PPh3)2](ClO4)3, and [Co(CNCH2Ph)4{P(C6H4OMe‐p)3}2](BF4)3, are investigated in substi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65728ad1aecf095526c50d72894312e9
https://doi.org/10.1080/15533170500301879

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Novel syntheses of tetrakis(benzylisocyanide)bis (tri-p-methoxyphenylphosphine)cobalt(III) tetrafluoroborate

Autor: Clifford A. L. Becker, Joan Mutanyatta, Jamil Ahmad

Publikováno v: Journal of Coordination Chemistry. 58:677-682

Co(I), Co(II) and Co(III) complexes containing the same ligands, [Co(CNCH2Ph)3 {P(C6H4OMe-p)3}2]BF4 (1), [Co(CNCH2Ph)3{P(C6H4OMe-p)3}2](BF4)2 (2) and [Co(CNCH2Ph)4 {P(C6H4OMe-p)3}2](BF4)3 (3), have been synthesized and characterized. Syntheses of 3 b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::969d18a153c4da0344aeadfc67d72d1e
https://doi.org/10.1080/00958970500039355

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