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Recent studies on molecular 2D materials with high tunability of structure and function have focused mostly on the discovery of new precursors. Here, we demonstrate a facile one‐pot synthesis of laminated 2D coordination polymer films comprising bis(terpyridine)iron and cobalt at a water/dichloromethane interface. Cross‐sectional elemental mapping unveiled the stratum‐like structure of the film and revealed that the second layer grows to the dichloromethane side below the first layer. Cyclic voltammetry clarified that the bottom layer mediates charge transfer between the top layer and the substrate in a narrow potential region of mixed‐valence states. Furthermore, the bilayer film sandwiched by electrodes in a dry condition shows stable rectification character, and the barrier voltage corresponds to the redox potential difference between the two layers. This study introduces a new strategy for polymer design to explore the materials science of molecular 2D materials. [ABSTRACT FROM AUTHOR]

[Display omitted] • Recent progress in coordination nanosheets (CONASHs) is discussed. • A series of applications of CONASHs is enumerated. • Outlook for CONASHs as functional nanomaterials is summarized. Layered metal-organic frameworks and metal-organic nanosheets have been regarded as an important series of low-dimensional materials. Their flexible designability and intrinsic porosity allow layered metal-organic frameworks and metal-organic nanosheets to be differentiated from inorganic counterparts. The present review article is devoted to collecting pieces of research aiming at exploiting layered metal-organic frameworks and metal-organic nanosheets as innovative nanomaterials. Spearheaded by an introductory part as Section 1, the present review article includes Section 2 (Physical properties), Section 3 (Electrocatalysis), Section 4 (Separation and filtration), Section 5 (Energy devices), Section 6 (Sensors), Section 7 (Theories for unveiled properties), and Section 8 (Conclusions and outlook). [ABSTRACT FROM AUTHOR]

The heterolaminated films show unique redox behavior based on electron transfer mediation, and a stable rectification character owing to the difference in electron transfer kinetics between the two layers. Front Cover: Chemically Laminated 2D Bis(terpyridine)metal Polymer Films: Formation Mechanism at the Liquid-Liquid Interface and Redox Rectification (Chem. Eur. J. 44/2022) Keywords: 2D materials; electron transfer; heterolayers; metal complexes; polymers EN 2D materials electron transfer heterolayers metal complexes polymers 1 1 1 08/08/22 20220804 NES 220804 B Heterolaminated bis(terpyridine)metal films b have been prepared by sequential coordination at the H SB 2 sb O/CH SB 2 sb Cl SB 2 sb interface. [Extracted from the article]

[Display omitted] • Summarizing recent progress of conductive coordination nanosheets (CONASHs) • Introducing huge varieties of conductive CONASHs and their synthesis methods. • Discussion of their electrical conductivity and magnetic properties. • CONASH applications to energy storages, electrode catalysts, and sensing devices. • Reviewing remaining challenges and the future perspective of CONASHs. Coordination nanosheets (CONASHs), two-dimensional materials based on metal complexes, have attracted a huge interest due to their wide variety of chemical structures and functionalities. Appropriately designed CONASHs exhibit electric conductivity, which is rarely observed in general coordination polymers. This review focuses on electrically conductive CONASHs and summarizes recent progress regarding their structural diversity, synthesis, conductive properties, and applications as energy storage materials, electrocatalysts, and sensors. It concludes with future perspectives. [ABSTRACT FROM AUTHOR]