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Multinuclear Cu(I) Clusters Featuring a New Triply Bridging Coordination Mode of Phosphaamidinate Ligands.

ABSTRACT: Phosphabenzamidine [mes-NH-C(Ph)?P-mes) (1) and phosphaformamidine (mes-NH-CH?P-mes) (4) ligands have been synthesized and characterized. The conjugate bases of 1 and 4 coordinate by each bridging three Cu(I) ions, forming hexa- and tetranuclear clusters Cu6[mes-N?C(Ph)-P-mes]3Cl4Li(THF)2 (3) and Cu4[mes-N?CH-P-mes]4 (5), respectively. Both clusters have been fully characterized using 1H NMR, 31P NMR, and X-ray crystallography. Complexes 3 and 5 exhibit a previously unknown coordination mode of phosphaamidinates, which are far less studied than their well-known amidinate counterparts.

SUBMITTER: Rathnayaka SC

PROVIDER: S-EPMC6443373 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Multinuclear Cu(I) Clusters Featuring a New Triply Bridging Coordination Mode of Phosphaamidinate Ligands.

Rathnayaka Suresh C SC Lindeman Sergey V SV Mankad Neal P NP

Inorganic chemistry 20180713 15

Phosphabenzamidine [mes-NH-C(Ph)═P-mes) (1) and phosphaformamidine (mes-NH-CH═P-mes) (4) ligands have been synthesized and characterized. The conjugate bases of 1 and 4 coordinate by each bridging three Cu(I) ions, forming hexa- and tetranuclear clusters Cu6[mes-N═C(Ph)-P-mes]3Cl4Li(THF)2 (3) and Cu4[mes-N═CH-P-mes]4 (5), respectively. Both clusters have been fully characterized using 1H NMR, 31P NMR, and X-r ...[more]

PMID: 30003779

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