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Syntheses and Molecular Structures of [RSn{W(CO)3Cp}2][W(CO)3Cp], [RSn{W(CO)3Cp}Cl2], and [RSn{W(CO)3Cp}Cr(CO)5] (R = [4‑t‑Bu-2,6-{P(O)(OR′)2}2C6H2], R′ = Et, i‑Pr). Autoionization Induced by Intramolecular PO→Sn Coordination

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Figshare2016-02-22 更新2026-04-29 收录
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The syntheses of the intramolecularly coordinated organotin-substituted transition metal complexes [RSn­{W­(CO)3Cp}2]­[W­(CO)3Cp] (2, R = 4-t-Bu-2,6-{P­(O)­(Oi-Pr)2}2C6H2), [RSn­{W­(CO)3Cp}­Cl2] (4, R = 4-t-Bu-2,6-{P­(O)­(Oi-Pr)2}2­C6H2), and [RSn­{W­(CO)3Cp}­Cr­(CO)5] (5, R = 4-t-Bu-2,6-{P­(O)­(OEt)2}2C6H2) are reported. The reaction of compound 2 with Ph4P+Br¯ gave the benzoxaphosphastannole [1­(P),3­(Sn)-Sn­[W­(CO)3Cp]2OP­(O)­(Oi-Pr)-6-t-Bu-4-P­(O)­(Oi-Pr)2-C6H2] (3). The compounds are characterized by 1H, 13C, 31P, 119Sn NMR and IR spectroscopy and, except for 3, by single crystal X-ray diffraction analysis. The experimental work is accompanied by DFT calculations.

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2016-02-22
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