Construction of the First Rhodium(I) Cyclic Pentameric Structure [Rh(CO)Cl{(μ‑N<sup><i>t</i></sup>BuP)<sub>2</sub>(CCPh)<sub>2</sub>}]<sub>5</sub> Using (Phenylethynyl)cyclodiphosphazanes
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To examine the steric effect of the phosphorus substituents in cyclodiphosphazanes, two less sterically demanding alkynyl-functionalized cis-[(μ-NtBuP)2(CCPh)2] (1) and trans-[(μ-NtBuP)2(CCPh)2] (2) were synthesized. The cis isomer 1, with a large subtending angle (135.8°) upon treatment with [Rh(CO)2Cl]2, afforded the first rhodium(I) cyclic pentameric macrocycle [Rh(CO)Cl{(μ-NtBuP)2(CCPh)2}]5 (3). The crystal structure of the cyclic pentamer 3 closely resembles a classical “Ferris wheel”.
创建时间：
2016-02-14
