Metal organic frameworks (MOFs) are promising photocatalytic materials due to their high surface area and tuneability of their electronic structure. We discuss here how to engineer the band structures and optical properties of a family of two-dimensional (2D) porphyrin-based MOFs, consisting of M tetrakis(4 carboxyphenyl)porphyrin structures (M TCPP, where M = Zn2+ or Co2+) and metal (Co2+, Ni2+, Cu2+ or Zn2+) paddlewheel clusters, with the aim of optimising their photocatalytic behaviour in solar fuel synthesis reactions (water splitting and/or CO2 reduction). Based on density functional theory (DFT) and time-dependent DFT simulations with a hybrid functional, we studied three types of composition/structural modifications: a) varying the metal centre at the paddlewheel or at the porphyrin centre to modify the band alignment; b) partially reducing the porphyrin unit to chlorin, which leads to stronger absorption of visible light; and c) substituting the benzene bridging between the porphyrin and paddlewheel, by ethyne or butadiyne bridges, with the aim of modifying the linker to metal charge transfer behaviour. Our work offers new insights on how to improve the photocatalytic behaviour of porphyrin- and paddlewheel-based MOFs.
First-principles GW calculations for fullerenes, porphyrins, phtalocyanine, and other molecules of interest for organic photovoltaic applications
我们评估的性能从头计算的电离能和HOMO-LUMO间隙的13个气相分子的兴趣为有机电子和光伏应用，包括C60富勒烯，并五苯，自由基卟啉和酞菁，PTCDA，和标准单体，如噻吩，芴，苯并噻唑或噻二唑。标准的G 0 W 0计算，即从本征态得到的局部或半局部泛函，显着提高电离能和带隙相比，密度泛函理论Kohn-Sham的结果，但计算的准粒子值仍然太小，作为过屏蔽的结果。从类Hartree-Fock特征值出发，得到了更好的结果，相当于对特征值进行了自洽，与实验结果相比，精度为2~4%.我们的计算是基于一个有效的高斯基础上实现GW的动态筛选，通过轮廓变形技术的显式治疗。
Chiral Porphyrin Monolayers on Ferromagnetic Thin Films: Ultrafast Spectroscopy of Hybrid Interfaces
Faculty of Chemistry, Adam Mickiewicz University（亚当·密茨凯维奇大学化学系）；Center for Advanced Technologies, Adam Mickiewicz University（亚当·密茨凯维奇大学先进技术中心）；Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research（德累斯顿-罗斯多夫亥姆霍兹中心离子束物理与材料研究所）；Faculty of Physics and Astronomy, Adam Mickiewicz University（亚当·密茨凯维奇大学物理与天文学系）
Computational Design of Metal-Free Porphyrin Dyes for Sustainable Dye-Sensitized Solar Cells Informing Energy Informatics and Decision Support
Dinajpur Government College（迪纳杰布尔政府学院）；UiT The Arctic University of Norway（挪威北极大学）；Hajee Mohammad Danesh Science and Technology University（哈吉·穆罕默德·达内什科学与技术大学）；Daffodil International University（达芬奇国际大学）
A generative artificial intelligence framework based on a molecular diffusion model for the design of metal-organic frameworks for carbon capture
Data Science and Learning Division, Argonne National Laboratory（阿贡国家实验室数据科学与学习分部）；Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign（伊利诺伊大学厄巴纳-香槟分校生物物理学与定量生物学中心）；Multiscale Materials and Manufacturing Lab, University of Illinois Chicago（芝加哥伊利诺伊大学多尺度材料与制造实验室）；Department of Materials Science and Engineering, Northwestern University（西北大学材料科学与工程系）；Department of Computer Science, University of Chicago（芝加哥大学计算机科学系）；Department of Physics, University of Illinois at Urbana-Champaign（伊利诺伊大学厄巴纳-香槟分校物理系）
本文提出GHP-MOFassemble生成式AI框架，基于分子扩散模型设计高CO2吸附容量且可合成的MOFs，经多步筛选验证，所得前六种MOFs的CO2容量超过2 m mol/g，优于假设数据集中96.9%的结构。
A Molecular Approach for Engineering Interfacial Interactions in Magnetic-Topological Insulator Heterostructures
控制磁性/拓扑绝缘体异质结构中的界面相互作用是出现新的自旋相关电子现象的主要挑战。对于任何依赖邻近效应的异质结构的合理设计，理想情况下应该保留每个组件的整体属性，同时调整界面处的相互作用。然而，在大多数无机界面相互作用太强，因此扰动，甚至淬火，在界面的每一侧的磁矩和拓扑表面状态。在这里，我们表明，这些属性可以通过使用配体化学来调整磁性离子与表面状态的相互作用来保持。通过在Bi $_2$ Te $_3$薄膜的表面上沉积Co基卟啉和酞菁单层，形成了稳健的界面，其保留了未掺杂的拓扑表面状态以及二价Co离子的原始磁矩。所选择的配体允许我们在该弱相互作用范围内调节界面杂化。这些结果，这是在与Co酞菁的相互作用诱导的Bi $_2$ Se $_3$的第一个五重层的表面状态的观察到的抑制形成鲜明对比，证明了平面金属有机分子的能力，跨越从强到弱的限制的相互作用。
