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CH/π-stabilization controls the architecture of the PPh3 propeller in transition-metal complexes. CH/π- and Cl/π-interactions determine its orientation within the molecule

Brunner, Henri ; Tsuno, Takashi


The architecture of the triphenylphosphine propeller in Cr-PPh3 complexes and in the compounds trans-[MCl2(PPh3)(2)], M = Ni, Pd, and Pt, is analyzed on the basis of a CSD search. The three phenyl rings interact with each other by formation of weak CH/pi bonds comparable to the archetypal T-shaped benzene dimer. ortho-CH bonds from inside the propeller bind to ipso-and ortho-carbon atoms of ...


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