3 years ago

A Truncated Molecular Star

A Truncated Molecular Star
Michito Yoshizawa, Kohei Yazaki, Soumyakanta Prusty, Dillip Kumar Chand
A pentanuclear coordination complex assembled from any palladium(II) component and non-chelating ligands is hitherto unreported. The pentanuclear complex [Pd5(L1)5(L2)5](BF4)10, 1 reported here was prepared by the spontaneous complexation of [Pd(DMSO)4](BF4)2 with the non-chelating bidentate ligands 1,4-phenylenebis(methylene) diisonicotinate, L1 and 4,4′-bipyridine, L2 in a one-pot method at room temperature. The planar polycyclic complex 1 with outer diameters of ≈3 nm is termed as a “molecular star” owing to its resemblance with a pentagram shape. Interim paths leading to the star were also probed to decipher related dynamics of the system. High five! A star-shaped heteroleptic pentanuclear complex [Pd5(L1)5(L2)5] (BF4)10 was synthesized in a one-pot method, by combining [Pd(DMSO)4](BF4)2 with the non-chelating bidentate ligands 1,4-phenylenebis(methylene) diisonicotinate, L1 and 4,4′-bipyridine, L2 in an equal ratio. The complex is characterized by NMR spectroscopy, MS and single-crystal X-ray diffraction techniques. Interim paths leading to the star were probed to decipher related dynamics of the system.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201702264

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