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Hampered Subcomponent Self‐Assembly Leads to an Aminal Ligand: Reactivity with Silver(I) and Copper(II)
Author(s) -
Tessarolo Jacopo,
Venzo Alfonso,
Bottaro Gregorio,
Armelao Lidia,
Rancan Marzio
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201601121
Subject(s) - chemistry , aminal , picolinic acid , acetonitrile , tetramer , copper , crystallography , ligand (biochemistry) , pyridine , reactivity (psychology) , inorganic chemistry , stereochemistry , medicinal chemistry , organic chemistry , receptor , medicine , biochemistry , alternative medicine , pathology , enzyme
Insight into the ineffectiveness of a subcomponent self‐assembly procedure between 4‐aminopyridine (4‐apy) and pyridine‐2‐carbaldehyde (2‐pyA) led to a new aminal ligand (L). The combination of L with Ag I gave a 2D luminescent network, in which the silver ions have a distorted triangular‐pyramidal coordination geometry. The aminal is stable in acetonitrile and DMSO but decomposes in alcohol solvents. Moreover, we found that Cu II also induced the decomposition of L, which led to Cu(pic) 2 , {[Cu(4‐apy) 4 ](ClO 4 ) 2 }, and an unprecedented {[Cu 4 (pic) 4 (OH) 2 (H 2 O) 6 ](ClO 4 ) 2 } tetramer based on Cu II ions and picolinic acid (Hpic) generated in situ. The decomposition pathway of L was clarified by a combination of single‐crystal XRD analysis, NMR spectroscopy, and ESI‐MS.