Assembly molecular architectures based on structural variation of metalloligand [Cu(PySal)2] (PySal=3-pyridylmethylsalicylideneimino)
摘要:
A versatile neutral metalloligand [Cu(PySal)(2)] (1) (PySal = 3-pyridylmethylsalicylidene-imino) was exploited as a building unit to construct five complexes {Cu[Cu(PySal)(2)](2)}(ClO4)(2) (2), [Cd[Cu(PySal)(2)](2)(H2O)(2)]) (NO3)(2) center dot 2H(2)O center dot 4CH(3)OH (3), {Zn[mu(2)-Cu(PySal)(2)]Cl-2}(n) center dot nCH(3)OH (4). {Hg[mu(2)-Cu(PySal)(2)]l(2)}(n) (5) and {Cd[mu(2)-Cu(PySal)(2)]Cl-2}n center dot nCH(2)Cl(2) (6). [Cu(FySal)(2)] acts as a chelating ligand in discrete complexes 2 and 3 with unbound anions, but as a bis-monodentate bridging ligand in polymers 4, 5 and 6 when halogen anions coordinated cooperatively to metal cations. The coordination geometry of Cu2+ is well-defined square planar in bridging [Cu(PySal)(2)], analogous to that in free metalloligand (1), but it is distorted square planar in chelating [Cu(PySal)(2)]. (C) 2008 Elsevier Ltd. All rights reserved.
Assembly molecular architectures based on structural variation of metalloligand [Cu(PySal)2] (PySal=3-pyridylmethylsalicylideneimino)
摘要:
A versatile neutral metalloligand [Cu(PySal)(2)] (1) (PySal = 3-pyridylmethylsalicylidene-imino) was exploited as a building unit to construct five complexes {Cu[Cu(PySal)(2)](2)}(ClO4)(2) (2), [Cd[Cu(PySal)(2)](2)(H2O)(2)]) (NO3)(2) center dot 2H(2)O center dot 4CH(3)OH (3), {Zn[mu(2)-Cu(PySal)(2)]Cl-2}(n) center dot nCH(3)OH (4). {Hg[mu(2)-Cu(PySal)(2)]l(2)}(n) (5) and {Cd[mu(2)-Cu(PySal)(2)]Cl-2}n center dot nCH(2)Cl(2) (6). [Cu(FySal)(2)] acts as a chelating ligand in discrete complexes 2 and 3 with unbound anions, but as a bis-monodentate bridging ligand in polymers 4, 5 and 6 when halogen anions coordinated cooperatively to metal cations. The coordination geometry of Cu2+ is well-defined square planar in bridging [Cu(PySal)(2)], analogous to that in free metalloligand (1), but it is distorted square planar in chelating [Cu(PySal)(2)]. (C) 2008 Elsevier Ltd. All rights reserved.