Programmable Self‐Assembly of Heterometallic Palladium(II)–Copper(II) 1D Grid‐Chain using Dinuclear Palladium(II) Corners with Pyrazole–Carboxylic Acid Ligands

• Published in: Chemistry, an Asian journal Vol. 13; no. 9; pp. 1108 - 1113
• Main Authors: Sun, Wen‐Qing, Tong, Jin, Lu, Hong‐Lin, Ma, Ting‐Ting, Ma, Hong‐Wei, Yu, Shu‐Yan
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 04.05.2018
• Subjects: Assembly; Benzoic acid; Catalysis; chain structures; Chains; Chemical synthesis; Chemistry; Copper compounds; Corners; Coupling (molecular); cross-coupling; heterometallic catalysis; Ligands; Palladium; Pyrazole; self-assembly; Structural analysis; supramolecular chemistry; cross-coupling; self-assembly; chain structures; heterometallic catalysis; supramolecular chemistry
• ISSN: 1861-4728; 1861-471X
• DOI: 10.1002/asia.201701766

A novel heterometallic diPdII–diCuII grid‐chain, {[(bpy)4Pd4Cu2L4](NO3)4}n (2; bpy=2,2′‐bipyridine), was synthesized through a programmable self‐assembly approach from the molecular corners [(bpy)2Pd2(HL)(L)](NO3) (1) as linkers with CuII nitrate by using the bifunctional H2L ligand featuring primary (pyrazole) and secondary (benzoic acid) groups. Structural analysis revealed that 1D structure 2 consists of one [Cu2(O2CPh)4]n unit as a bridge and two [(bpy)2Pd2L2]n corners. Additionally, the catalytic effect of the heterometallic synergy on the Suzuki coupling reaction by using 2 was further explored. Get with the program: A new heterometallic grid‐chain, {[(bpy)4Pd4Cu2L4](NO3)4}n (2; bpy=2,2′‐bipyridine), is synthesized through programmable self‐assembly of dimetallic [(bpy)2Pd2(HL)(L)](NO3) (1) linkers by using a bifunctional ligand featuring primary (pyrazole) and secondary (benzoic acid) groups; this new grid‐chain is characterized by elemental analysis, IR spectroscopy, and single‐crystal X‐ray diffraction.