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A dipotassium 1,2,4-diazaphospholide dianion radical as an organometallic building block: the first 1,2-diaza-4-phosphine ruthenocene

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Abstract

A persistent dipotassium 3,5-diphenyl-1,2,4-diazaphospholide dianion radical {K+2[(3,5-Ph2dp)]˙2–} (2) was synthesized and investigated by EPR analysis and magnetic susceptibility measurement, and it can be used as a transfer agent for the preparation of an unusual 1,2-diaza-4-phosphine ruthenocene (4) with exclusive σ(P)-coordination. A plausible mechanism for the formation of 4 was proposed as one that involves a reactive radical intermediate {K+[(η5-CpMe5Ru)(σ(P),σ(C)-(3,5-Ph2dp)˙])} (K+[5A˙]) with σ(P)-coordination due to the high spin density (SD) at the phosphorus (σ2λ3) atom.

Graphical abstract: A dipotassium 1,2,4-diazaphospholide dianion radical as an organometallic building block: the first 1,2-diaza-4-phosphine ruthenocene

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The article was received on 04 Aug 2018, accepted on 29 Aug 2018 and first published on 29 Aug 2018


Article type: Communication
DOI: 10.1039/C8DT03185A
Citation: Dalton Trans., 2018, Advance Article
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    A dipotassium 1,2,4-diazaphospholide dianion radical as an organometallic building block: the first 1,2-diaza-4-phosphine ruthenocene

    X. Zhang, Q. Guo, Y. Zhang, Y. Zhang and W. Zheng, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT03185A

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