@article{64017,
  abstract     = {{Abstract Donor stabilization of Sn(II) and Pb(II) halides with 1,1?-ferrocenylene bridged bisphosphanes has been explored for Fe(C5H4P(C6H5)2)2 (dppf), and Fe(C5H4PH(C4H9))2. These bisphosphanes are reacted with SnBr2 and PbCl2 with and without additional Lewis acid (AlCl3) forming acyclic and cyclic donor adducts from which the latter represent bisphosphoniotetrylenes. Since dynamic exchange in solution is observed, characterization includes solution and solid-state NMR in addition to SC-XRD, amended by DFT calculations.}},
  author       = {{Nasemann, Sina and Franz, Roman and Kargin, Denis and Bruhn, Clemens and Kelemen, Zsolt and Gutmann, Torsten and Pietschnig, Rudolf}},
  journal      = {{Chemistry - An Asian Journal}},
  keywords     = {{ferrocene, lead, phosphorus, tetrylene, tin}},
  number       = {{8}},
  pages        = {{e202300950}},
  publisher    = {{John Wiley & Sons, Ltd}},
  title        = {{{At the limits of bisphosphonio-substituted stannylenes}}},
  doi          = {{10.1002/asia.202300950}},
  volume       = {{19}},
  year         = {{2024}},
}

@article{22220,
  abstract     = {{Abstract Developing resource-abundant and sustainable metal-free bifunctional oxygen electrocatalysts is essential for the practical application of zinc–air batteries (ZABs). 2D black phosphorus (BP) with fully exposed atoms and active lone pair electrons can be promising for oxygen electrocatalysts, which, however, suffers from low catalytic activity and poor electrochemical stability. Herein, guided by density functional theory (DFT) calculations, an efficient metal-free electrocatalyst is demonstrated via covalently bonding BP nanosheets with graphitic carbon nitride (denoted BP-CN-c). The polarized PN covalent bonds in BP-CN-c can efficiently regulate the electron transfer from BP to graphitic carbon nitride and significantly promote the OOH* adsorption on phosphorus atoms. Impressively, the oxygen evolution reaction performance of BP-CN-c (overpotential of 350 mV at 10 mA cm−2, 90\% retention after 10 h operation) represents the state-of-the-art among the reported BP-based metal-free catalysts. Additionally, BP-CN-c exhibits a small half-wave overpotential of 390 mV for oxygen reduction reaction, representing the first bifunctional BP-based metal-free oxygen catalyst. Moreover, ZABs are assembled incorporating BP-CN-c cathodes, delivering a substantially higher peak power density (168.3 mW cm−2) than the Pt/C+RuO2-based ZABs (101.3 mW cm−2). The acquired insights into interfacial covalent bonds pave the way for the rational design of new and affordable metal-free catalysts.}},
  author       = {{Wang, Xia and Kormath Madam Raghupathy, Ramya and Querebillo, Christine Joy and Liao, Zhongquan and Li, Dongqi and Lin, Kui and Hantusch, Martin and Sofer, Zdeněk and Li, Baohua and Zschech, Ehrenfried and Weidinger, Inez M. and Kühne, Thomas and Mirhosseini, Hossein and Yu, Minghao and Feng, Xinliang}},
  journal      = {{Advanced Materials}},
  keywords     = {{2D materials, bifunctional oxygen electrocatalysts, black phosphorus, oxygen evolution reaction, zinc–air batteries}},
  number       = {{20}},
  pages        = {{2008752}},
  title        = {{{Interfacial Covalent Bonds Regulated Electron-Deficient 2D Black Phosphorus for Electrocatalytic Oxygen Reactions}}},
  doi          = {{https://doi.org/10.1002/adma.202008752}},
  volume       = {{33}},
  year         = {{2021}},
}