In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Self-assembly of Cu(I) metallomacrocycle and coordination polymers with 2,2′:5′,4”-terpyridine directed by anions and solvents, published in 2019-11-01, which mentions a compound: 15418-29-8, Name is Copper(I) tetra(acetonitrile) tetrafluoroborate, Molecular C8H12BCuF4N4, Application In Synthesis of Copper(I) tetra(acetonitrile) tetrafluoroborate.
The reaction of [Cu(MeCN)4]X (X = BF4, PF6) with 2,2′:5′,4”-terpyridine (2,2′:5′,4”-terpy) in MeOH/MeCN under Ar/C2H4 afforded 1-dimensional Cu(I) coordination polymers {[Cu(2,2′:5′,4”-terpy)(MeCN)]BF4}n (1) and {{[Cu(2,2′:5′,4”-terpy)(MeCN)]PF6}2·H2O}n (2). In complex 1, the tetrahedral Cu(I) atoms are bridged by 2,2′:5′,4”-terpy in the head-to-tail fashion to form an infinite 1-dimensional zigzag chain structure. In complex 2, there are two independent infinite 1-dimensional zigzag chain structures along the b- and c-axises in the unit cell. The weak intermol. π···π stacking interactions exist between opposite 2,2′:5′,4”-terpy ligands. The PF-6 anions are surrounded by four opposite MeCN mols. in two crossed zigzag chains. In contrast, the reaction of [Cu(MeCN)4]PF6 with 2,2′:5′,4”-terpy in Me2CO/MeCN under Ar/C2H4 afforded Cu(I) metallomacrocycle [Cu4(2,2′:5′,4”-terpy)4](PF6)4·5Me2CO (3). Four Cu(I) atoms are bridged by the four 2,2′:5′,4”-terpy in a head-to-tail fashion to afford a rhombic Cu(I) metallomacrocycle. One distorted Me2CO mol. is encapsulated in the central vacant space of [Cu4(2,2′:5′,4”-terpy)4]4+ core and two PF-6 anions are sandwiched between the rhombic Cu(I) metallomacrocyclic layers. The reactions of Cu(NO3)2·3H2O and Cu turnings with 2,2′:5′,4”-terpy in MeOH/MeCN under Ar afforded 1-dimensional Cu(I) coordination polymer {[Cu(2,2′:5′,4”-terpy)(MeCN)]NO3}n (4). Complex 4 could be induced by the autoredn. of Cu(II) species to Cu(I) species.
This literature about this compound(15418-29-8)Application In Synthesis of Copper(I) tetra(acetonitrile) tetrafluoroboratehas given us a lot of inspiration, and I hope that the research on this compound(Copper(I) tetra(acetonitrile) tetrafluoroborate) can be further advanced. Maybe we can get more compounds in a similar way.
Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI