A Pd24 Pregnant Molecular Nanoball: Self-Templated Stellation by Precise Mapping of Coordination Sites

Bhat, Imtiyaz Ahmad ; Samanta, Dipak ; Mukherjee, Partha Sarathi (2015) A Pd24 Pregnant Molecular Nanoball: Self-Templated Stellation by Precise Mapping of Coordination Sites Journal of the American Chemical Society, 137 (29). pp. 9497-9502. ISSN 0002-7863

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Official URL: http://doi.org/10.1021/jacs.5b06628

Related URL: http://dx.doi.org/10.1021/jacs.5b06628

Abstract

We found that Pd(II) ion (M) and the smallest 120° bidentate donor pyrimidine (La) self-assemble into a mononuclear M(La)4 complex (1a) instead of the expected smallest M12(La)24 molecular ball (1), presumably due to the weak coordination nature of the pyrimidine. To construct such a pyrimidine bridged nanoball, we employed a new donor tris(4-(pyrimidin-5-yl)phenyl)amine (L); which upon selective complexation with Pd(II) ions resulted in the formation of a pregnant M24L24 molecular nanoball (2) consisting of a pyrimidine-bridged Pd12 baby-ball supported by a Pd12 larger mother-ball. The formation of the baby-ball was not successful without the support of the mother-ball. Thus, we created an example of a self-assembly where the inner baby-ball resembling to the predicted M12(La)24 ball (1) was incarcerated by the giant outer mother-ball by means of geometrical constraints. Facile conversion of the pregnant ball 2 to a smaller M12(Lb)24 ball 3 with dipyridyl donor was achieved in a single step.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:118688
Deposited On:28 May 2021 06:06
Last Modified:28 May 2021 06:06

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