title: Confinement Effects of Metal-Organic Framework on the Formation of Charge-Transfer Tetrathiafulvalene Dimers.
abstract: Three transition metal coordination polymers (CPs) based on the redox-active dimethylthio-tetrathiafulvalene-bicarboxylate (L) and 1,3-bi(4-pyridyl)propane (bpp) ligands, formulated as [MnL(bpp)]n(1), [CdL(bpp)]n(2), and [Cd2L(bpp)2(H2O)(C2O4)0.5]n·n(ClO4)·n(H2O) (3), are crystallographically characterized. Complexes 1 and 2 are isostructural 2-D polymers, and 3 features an unusual 3-D metal-organic framework (MOF). The 3-D MOF is constructed from tetranuclear cluster nodes built through the μ2-O bridge of the TTF ligand, which is first found for TTF coordination polymers. It is found that the channel generated by the 3-D MOF exerts a confinement effect on the formation of TTF dimers. The TTF dimers show strong intradimer interaction with partial electron transfer or charge transfer, and hence, the Cd compound 3 has relatively good photocurrent response property in comparison with that of 2-D Cd compound 2.
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China.
authors.forename: Ting
authors.initials: T
authors.lastname: Chen
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Huo
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China.
authors.forename: Jin-Le
authors.initials: JL
authors.lastname: Hou
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China.
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China.
authors.forename: Qin-Yu
authors.identifier: http://orcid.org/0000-0003-1864-1175
authors.initials: QY
authors.lastname: Zhu
authors.affiliation: College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, P. R. China.
authors.forename: Jie
authors.initials: J
authors.lastname: Dai