Synthesis and characterisation of heterometallic molecular triangles using ambidentate linker: self-selection of a single linkage isomer


Autoria(s): Bar, Arun Kumar; Chakrabarty, Rajesh; Batten, Stuart R; Mukherjee, Partha Sarathi
Data(s)

2009

Resumo

The coordination driven self-assembly of discrete molecular triangles from a non-symmetric ambidentate linker 5-pyrimidinecarboxylate (5-pmc) and Pd(II)/Pt(II) based 90◦ acceptors is presented. Despite the possibility of formation of a mixture of isomeric macrocycles (linkage isomers) due to different connectivity of the ambidentate linker, formation of a single and symmetrical linkage somer in both the cases is an interesting observation. Moreover, the reported macrocycles represent the first example of discrete metallamacrocycles of bridging 5-pmc. While solution composition in both the cases was characterised by multinuclear NMR study and electrospray ionization mass spectrometry (ESI-MS), the identity of the assemblies in the solid state was established by X-ray single crystals structure analysis. Variable temperature NMR study clearly ruled out the formation of any other macrocycles by [4 + 4] or [2 + 2] self-assembly of the reacting components.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/19945/1/Full_Text.pdf

Bar, Arun Kumar and Chakrabarty, Rajesh and Batten, Stuart R and Mukherjee, Partha Sarathi (2009) Synthesis and characterisation of heterometallic molecular triangles using ambidentate linker: self-selection of a single linkage isomer. In: Dalton Transactions (17). pp. 3222-3229.

Publicador

The Royal Society of Chemistry.

Relação

http://www.rsc.org/Publishing/Journals/DT/article.asp?doi=b900118b

http://eprints.iisc.ernet.in/19945/

Palavras-Chave #Inorganic & Physical Chemistry
Tipo

Journal Article

PeerReviewed