biostudies-literatureFranz RJános Bolyai Research Scholarship and ProjectGerman Science Funde2306805https://www.ebi.ac.uk/biostudies/studies/S-EPMC10953586biostudies-literatureUnknown11(11)Coordination of a stereochemically defined P₃ -chain to a series of transition metal carbonyls [M(CO)_x ]^z- (M = Mn (x = 5, z = 1), Fe (x = 4, z = 2) or Co (x = 4, z = 1)) is explored using a [3]ferrocenophane scaffold. A gradual transition from η¹ -, η² - to η³ -coordination is observed where in the η² -mode the terminal positions of the phosphorus chain are bridged. With an excess of cobalt carbonyl successive P-P bond activation and gradual separation of the central phosphorus atoms from the phosphorus chain has been observed. This process is reversible and with suitable reagents such as methyl lithium, the P₃ -unit is regenerated in stereospecific manner. The bonding situation and steps of the graduaAdvanced science (Weinheim, Baden-Wurttemberg, Germany)Gradual Coordination and Reversible P-P Bond Activation of a P₃ -Unit with Transition Metal Carbonyls.PMC10953586UNKP-22-5-BME-298CRC 1319Gal DKelemen ZFranz RPietschnig RBruhn CfalseGradual Coordination and Reversible P-P Bond Activation of a P₃ -Unit with Transition Metal Carbonyls.Coordination of a stereochemically defined P₃ -chain to a series of transition metal carbonyls [M(CO)_x ]^z- (M = Mn (x = 5, z = 1), Fe (x = 4, z = 2) or Co (x = 4, z = 1)) is explored using a [3]ferrocenophane scaffold. A gradual transition from η¹ -, η² - to η³ -coordination is observed where in the η² -mode the terminal positions of the phosphorus chain are bridged. With an excess of cobalt carbonyl successive P-P bond activation and gradual separation of the central phosphorus atoms from the phosphorus chain has been observed. This process is reversible and with suitable reagents such as methyl lithium, the P₃ -unit is regenerated in stereospecific manner. The bonding situation and steps of the gradua2024-01-01T00:00:00Z2024 Mar2026-06-01T18:55:17.335Z2024-11-20T19:05:37.016ZS-EPMC109535863816122510.1002/advs.202306805