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Synthesis, Hole Doping, and Electrical Properties of a Semiconducting Azatriangulene-Based Covalent Organic Framework.
Publication Type: Academic Journal
Source(s): Journal of the American Chemical Society [J Am Chem Soc] 2023 May 22. Date of Electronic Publication: 2023 May 22.
Abstract: Two-dimensional covalent organic frameworks (2D COFs) containing heterotriangulenes have been theoretically identified as semiconductors with tunable, Dirac-cone-like band structures, which are expected to afford high charge-carrier mobilities ideal fo...
Competition between side-chain interactions dictates 2D polymer stacking order.
Publication Type: Academic Journal
Source(s): Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2023 May 18; Vol. 59 (41), pp. 6203-6206. Date of Electronic Publication: 2023 May 18.
Abstract: Interrogating the stacking of two-dimensional polymers (2DPs) as a function of chemical composition is important to leverage their properties. We explore the dependence of 2DP crystallinity and porosity on variable amounts of zwitterions contained with...
Two-Dimensional Covalent Organic Framework Membranes for Liquid-Phase Molecular Separations: State of the Field, Common Pitfalls, and Future Opportunities.
Publication Type: Academic Journal
Source(s): Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2023 Apr 04, pp. e2300525. Date of Electronic Publication: 2023 Apr 04.
Abstract: Two-dimensional covalent organic frameworks (2D COFs) are attractive candidates for next-generation membrane active layers due to their robust linkages and uniform, tunable pores. Many publications have claimed to achieve selective molecular transport ...
Light-Induced Transient Lattice Dynamics and Metastable Phase Transition in CH 3 NH 3 PbI 3 Nanocrystals.
Publication Type: Academic Journal
Source(s): ACS nano [ACS Nano] 2023 Mar 28; Vol. 17 (6), pp. 5306-5315. Date of Electronic Publication: 2023 Mar 14.
Abstract: Methylammonium lead iodide (MAPbI 3 ) perovskite nanocrystals (NCs) offer desirable optoelectronic properties with prospective utility in photovoltaics, lasers, and light-emitting diodes (LEDs). Structural rearrangements of MAPbI 3 in response to photo...
Electronic Spin Qubit Candidates Arrayed within Layered Two-Dimensional Polymers.
Publication Type: Academic Journal
Source(s): Journal of the American Chemical Society [J Am Chem Soc] 2023 Jan 11; Vol. 145 (1), pp. 689-696. Date of Electronic Publication: 2022 Dec 27.
Abstract: Molecular electronic spin qubits are promising candidates for quantum information science applications because they can be reliably produced and engineered via chemical design. Embedding electronic spin qubits within two-dimensional polymers (2DPs) off...
Divergent Synthesis of Alternant Bisanthenequinone and Nonalternant Heptalenodifluorenedione Ring Systems via a Concentration-Dependent Rearrangement.
Publication Type: Academic Journal
Source(s): The Journal of organic chemistry [J Org Chem] 2022 Dec 16; Vol. 87 (24), pp. 16307-16312. Date of Electronic Publication: 2022 Dec 02.
Abstract: The synthesis of a diol containing a nonalternant aromatic core was investigated to access a nonalternant isomer of bisanthene with functional groups suitable for two-dimensional polymerization. An alternant diol and its nonalternant isomer were prepar...
Single-Crystalline Imine-Linked Two-Dimensional Covalent Organic Frameworks Separate Benzene and Cyclohexane Efficiently.
Publication Type: Academic Journal
Source(s): Journal of the American Chemical Society [J Am Chem Soc] 2022 Nov 02; Vol. 144 (43), pp. 19813-19824. Date of Electronic Publication: 2022 Oct 20.
Abstract: Two-dimensional (2D) covalent organic frameworks (COFs) are composed of structurally precise, permanently porous, layered macromolecular sheets, which are traditionally synthesized as polycrystalline solids with crystalline domain lengths smaller than ...
Aligned macrocycle pores in ultrathin films for accurate molecular sieving.
Publication Type: Academic Journal
Source(s): Nature [Nature] 2022 Sep; Vol. 609 (7925), pp. 58-64. Date of Electronic Publication: 2022 Aug 31.
Abstract: Polymer membranes are widely used in separation processes including desalination 1 , organic solvent nanofiltration 2,3 and crude oil fractionation 4,5 . Nevertheless, direct evidence of subnanometre pores and a feasible method of manipulating their si...
Low-temperature mineralization of perfluorocarboxylic acids.
Publication Type: Academic Journal
Source(s): Science (New York, N.Y.) [Science] 2022 Aug 19; Vol. 377 (6608), pp. 839-845. Date of Electronic Publication: 2022 Aug 18.
Abstract: Per- and polyfluoroalkyl substances (PFAS) are persistent, bioaccumulative pollutants found in water resources at concentrations harmful to human health. Whereas current PFAS destruction strategies use nonselective destruction mechanisms, we found that...
Controlled n-Doping of Naphthalene-Diimide-Based 2D Polymers.
Publication Type: Academic Journal
Source(s): Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2022 Jun; Vol. 34 (22), pp. e2101932. Date of Electronic Publication: 2022 Feb 08.
Abstract: 2D polymers (2DPs) are promising as structurally well-defined, permanently porous, organic semiconductors. However, 2DPs are nearly always isolated as closed shell organic species with limited charge carriers, which leads to low bulk conductivities. He...