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Lookup NU author(s): Dr Maria Amo Achoa,
Dr Ross Harrington,
Professor Felix Zamora
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Reactions between [Rh-2(CH3COO)(4)] with 2,6-diaminopurine (HDap) or 6-chloro-2-aminopurine (HClap) and [Rh-2((CH3)(3)CCOO)(4)] with HClap produce, three new dirhodium(II) carboxylate complexes of the general form, [Rh-2(RCOO)(4)(Purine)(2)] (R= CH3, (CH3)(3)C). Single crystal X-ray diffraction studies confirm that in all cases the purine coordinates to the axial position of the dirhodium(II)tetracarboxylate unit. However, while the complex obtained with HDap features the typical purine binding mode via N(7), complexes containing HClap show unusual N3 coordination. This is an extremely rare instance of an unrestricted purine binding via N3. Some rationalization of these data is offered based on a series of DFT calculations.
Author(s): Amo-Ochoa P, Castillo O, Harrington RW, Zamora F, Houton A
Publication type: Article
Publication status: Published
Journal: Inorganic Chemistry
Print publication date: 01/02/2013
ISSN (print): 0020-1669
ISSN (electronic): 1520-510X
Publisher: American Chemical Society
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