The Cover Picture shows a series of rhenium(I) triscarbonyl complexes with a carbodiphosphorane-based tridentate ligand between two facades of the MLU Weinberg Campus. The [PCP] and [PC(H)P]⁺ coordination sides in the carbodiphosphorane ligand open a window to versatile coordination modes toward the Re^I center. In this context the colored globes, highlighting the large impact of modern pincer chemistry, illustrate the meridional configuration of the carbodiphosphorane pincer-ligand in the reported rhenium complex to be located in the thermodynamic ground floor. Yet a facial arrangement was initially observed upon coordination to Re^I, it is located in the upper floors of the building (https://doi.org/10.1002/zaac.202100151).

中文翻译：

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封面特征：具有基于碳二正膦的三齿配体的 ReI 三羰基配合物中的面部与经向协调模式 (14/2021)

封面图片展示了一系列铼 (I) 三羰基配合物和基于碳二正膦的三齿配体，位于 MLU 温伯格校区的两个立面之间。碳二正膦配体中的 [PCP] 和 [PC(H)P] ⁺配位侧打开了通向 Re ^I中心的多功能配位模式的窗口。在这种情况下，彩色地球仪突出了现代钳形化学的巨大影响，说明了据报道的位于热力学底层的铼络合物中碳二正膦钳形配体的经向构型。然而，最初在与 Re ^I协调时观察到面部排列，它位于建筑物的较高楼层 (https://doi.org/10.1002/zaac.202100151)。