%0 Journal Article %1 Vogler.1990 %A Vogler, Conny %A Kaim, Wolfgang. %D 1990 %J Journal of Organometallic Chemistry %K MO bipyrimidine complex complex;ESR complex;frontier complex;iron configuration copper ferrocene iron tetranuclear tetranuclear;electron %N 3 %P 293--298 %R 10.1016/0022-328X(90)85515-Z %T Electronic structure of a heterotetranuclear copper(I)2-iron(II)2 complex bridged by p-accepting 2,2'-bipyrimidine. Close-lying but orthogonal frontier orbitals %V 398 %X The new complex I contains two 1,1'-bis(diphenylphosphino)ferrocene-coordinated copper(I) centers which are connected by the D2h-sym. p acceptor 2,2'-bipyrimidine (bpym). Cyclic voltammetry and ESR reveal a ferrocene-based HOMO and a bpym-centered LUMO. There is no detectable HOMO/LUMO absorption band because of orthogonality between the two types of orbitals. The lack of strong solid-state metal-ligand charge-transfer (MLCT) luminescence is an indirect consequence of the small bite angle of the bis(diphenylphosphino)ferrocene ligand, which cannot induce strong distortion at the copper center. on SciFinder(R)

@article{Vogler.1990, abstract = {The new complex I contains two 1,1'-bis(diphenylphosphino)ferrocene-coordinated copper(I) centers which are connected by the D2h-sym. \textgreek{p} acceptor 2,2'-bipyrimidine (bpym). Cyclic voltammetry and ESR reveal a ferrocene-based HOMO and a bpym-centered LUMO. There is no detectable HOMO/LUMO absorption band because of orthogonality between the two types of orbitals. The lack of strong solid-state metal-ligand charge-transfer (MLCT) luminescence is an indirect consequence of the small bite angle of the bis(diphenylphosphino)ferrocene ligand, which cannot induce strong distortion at the copper center. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Vogler, Conny and Kaim, Wolfgang.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/29769c58f41fe4a1c6baf7bb124af5102/huebleriac}, doi = {10.1016/0022-328X(90)85515-Z}, interhash = {3c5ce3c3a6fc3b17d46b050b5f51d4dd}, intrahash = {9769c58f41fe4a1c6baf7bb124af5102}, journal = {Journal of Organometallic Chemistry}, keywords = {MO bipyrimidine complex complex;ESR complex;frontier complex;iron configuration copper ferrocene iron tetranuclear tetranuclear;electron}, number = 3, pages = {293--298}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {Electronic structure of a heterotetranuclear copper(I)2-iron(II)2 complex bridged by \textgreek{p}-accepting 2,2'-bipyrimidine. Close-lying but orthogonal frontier orbitals}, volume = 398, year = 1990 }