Supramolecular bulky phosphines comprising 1,3,5-triaza-7-phosphaadamantane and Zn(salphen)s: structural features and application in hydrosilylation catalysis

被引：15

作者：

Anselmo, Daniele ^{[1
]}

Gramage-Doria, Rafael ^{[2
]}

Besset, Tatiana ^{[2
]}

Escarcega-Bobadilla, Martha V. ^{[1
]}

Salassa, Giovanni ^{[1
]}

Escudero-Adan, Eduardo C. ^{[1
]}

Martinez Belmonte, Marta ^{[1
]}

Martin, Eddy ^{[1
]}

Reek, Joost N. H. ^{[2
]}

Kleij, Arjan W. ^{[1
,3
]}

机构：

[1] Inst Chem Res Catalonia ICIQ, Tarragona 43007, Spain

[2] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1090 GS Amsterdam, Netherlands

[3] Catalan Inst Res & Adv Studies ICREA, Barcelona 08010, Spain

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 21期

关键词：

TRANSITION-METAL-COMPLEXES; BIDENTATE LIGANDS; BUILDING-BLOCKS; COMBINATORIAL LIBRARIES; HOMOGENEOUS CATALYSIS; HYDROFORMYLATION; COORDINATION; CONSTRUCTION; ENCAPSULATION; ASSEMBLIES;

D O I：

10.1039/c3dt00078h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The use of the commercially available, bifunctional phosphine 1,3,5-triaza-7-phosphaadamantane (abbreviated as PN3) in conjunction with a series of Zn(salphen) complexes leads to sterically encumbered phosphine ligands as a result of (reversible) coordinative Zn-N interactions. The solid state and solution phase behaviour of these supramolecular ligand systems have been investigated in detail and revealed their stoichiometries in the solid state observed by X-ray crystallography, and those determined in solution by NMR and UV-Vis spectroscopy. Also, upon application of these supramolecular bulky phosphines in hydrosilylation catalysis employing 1-hexene as a substrate, the catalysis data infer the presence of an active Rh species with two coordinated, bulky PN3/Zn(salphen) assembly units having a maximum of three Zn(salphen)s associated per PN3 scaffold, with an excess of bulky phosphines hardly affecting the overall activity.

引用

页码：7595 / 7603

页数：9

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