A synthetic strategy of organometallic supramolecular bridged compounds and spirocyclic compounds featuring half-sandwich Cp*Rh units
Bridged and spirocyclic compounds are common concepts in the pure organic field.Herein,we extend these concepts to supramolecular chemistry and a synthetic strategy is exhibited.Three supramolecular bridged compounds[(Cp*Rh)6(μ-η2-η2-C2O4)2(μ-C2O4)(LA)2](OTf)6(1),[(Cp*Rh)6(dhbq)2(pyrazine)(LA)2](OTf)8(2),and[(Cp*Rh)6(tpphz)2(bpea)(LA)2](OTf)12(3),and a spirocyclic compound(Cp*Rh)12(bibzim)3Ru(LA)3(LB)3](OTf)10(PF6)4(4),where LA=3,3'-di(pyridin-4-yl)-2,2'-bipyridine,OTf=CF3SO3-,dhbq=2,5-dihydroxy-1,4-benzoquinone,tpphz=tetrapyrido[3,2-a:2',3'-c:3",2"-h:2'",3'"-j]phenazine,bpea=1,2-di(pyridin-4-yl)ethane,bibzim=2,2'-bisbenzimidazole,LB=4,4'-di(pyridin-4-yl)-1,1'-biphenyl,were obtained by introducing of additional chelating sites in rigid linear ligand through coordination-driven stepwise chemical self-assembly method and were characterized by single crystal X-ray diffraction method.CCDC:2296510,1;2296511,2;2296512,3;2296513,4.
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