Tunable Electrical Conductivity and Magnetic Property of the Two Dimensional Metal Organic Framework [Cu(TPyP)Cu2(O2CCH3)4]

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• 作者：Ananya Sengupta ; Subhadeep Datta ; Chenliang Su ; Tun Seng Herng ; Jun Ding ; Jagadese J. Vittal ; Kian Ping Loh
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：June 29, 2016
• 年：2016
• 卷：8
• 期：25
• 页码：16154-16159
• 全文大小：467K
• 年卷期：0
• ISSN：1944-8252

文摘

The coordination chemistry between copper acetate [Cu₂(OAc)₄] and 5,10,15,20-tetra-4-pyridyl-21H,23H-porphine (porphyrin, H₂TPyP) is found to give rise to either a 2D metal–organic framework (MOF) [Cu(TPyP)Cu₂(O₂CCH₃)₄] or a 3D MOF [Cu(TPyP)CuCl₂]·2.5TCE·7H₂O], depending on the choice of solvent. The 2D MOF can be made into a film, which was doped with 7,7,8,8-tetracyanoquinodimethane (TCNQ), and the electrical conductivity of the thin film was increased by 3 orders of magnitude with respect to that of the undoped Cu-MOF. The formation of a charge-transfer complex between TCNQ and the 2D Cu-MOF also imparts stronger paramagnetic properties than for the undoped MOF.