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Face and edge directed self-assembly of Pd₁₂ tetrahedral nano-cages and their self-sorting.

ABSTRACT: Reactions of a cis-blocked Pd(ii) 90° acceptor [cis-(tmeda)Pd(NO₃)₂] (M) with 1,4-di(1H-tetrazol-5-yl)benzene (H₂L¹ ) and [1,3,5-tri(1H-tetrazol-5-yl)benzene] (H₃L² ) in 1?:?1 and 3?:?2 molar ratios respectively, yielded soft metallogels G1 and G2 [tmeda = N,N,N',N'-tetramethylethane-1,2-diamine]. Post-metalation of the gels G1 and G2 with M yielded highly water-soluble edge and face directed self-assembled Pd₁₂ tetrahedral nano-cages T1 and T2, respectively. Such facile conversion of Pd(ii) gels to discrete tetrahedral metallocages is unprecedented. Moreover, distinct self-sorting of these two tetrahedral cages of similar sizes was observed in the self-assembly of M with a mixture of H₂L¹ and H₃L² in aqueous medium. The edge directed tetrahedral cage (T1) was successfully used to perform Michael reactions of a series of water insoluble nitro-olefins assisted by encapsulation into the cage in aqueous medium.

SUBMITTER: Howlader P

PROVIDER: S-EPMC6024303 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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Face and edge directed self-assembly of Pd12 tetrahedral nano-cages and their self-sorting.

Howlader Prodip P Mukherjee Partha Sarathi PS

Chemical science 20160520 9

Reactions of a cis-blocked Pd(ii) 90° acceptor [cis-(tmeda)Pd(NO3)2] (M) with 1,4-di(1H-tetrazol-5-yl)benzene (H2L1 ) and [1,3,5-tri(1H-tetrazol-5-yl)benzene] (H3L2 ) in 1 : 1 and 3 : 2 molar ratios respectively, yielded soft metallogels G1 and G2 [tmeda = N,N,N',N'-tetramethylethane-1,2-diamine]. Post-metalation of the gels G1 and <b ...[more]

PMID: 30034731

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