Volume 23, Issue 51 p. 12456-12461
Communication

A Truncated Molecular Star

Soumyakanta Prusty

Soumyakanta Prusty

Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036 India

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Dr. Kohei Yazaki

Dr. Kohei Yazaki

Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036 India

Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503 Japan

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Dr. Michito Yoshizawa

Dr. Michito Yoshizawa

Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503 Japan

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Prof. Dr. Dillip Kumar Chand

Corresponding Author

Prof. Dr. Dillip Kumar Chand

Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036 India

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First published: 22 June 2017
Citations: 41

Graphical Abstract

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.

Abstract

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.