biostudies-literatureMaier SBaden-WürttembergDeutsche Forschungsgemeinschafte20366https://www.ebi.ac.uk/biostudies/studies/S-EPMC12828447biostudies-literatureUnknown65(4)A systematic study on the reactivity of the homodipnictogen tetrahedrane complexes [{Cp'Mo(CO)2}2(μ,η2:2-E2)] (E ═ P, As, Sb; Cp' = η5-C5H4tBu) towards the disilylene [LPhSi]2 and digermylene [LPhGe]2 (LPh = PhC(NtBu)2) is presented. Depending on the specific combination of tetrel and pnictogen atom, a variety of novel silicon-pnictogen and germanium-pnictogen heterocycles in different bonding situations were obtained. This is a significant development, as these metallacycles are unprecedented and offer new possibilities for further reactivities. These three- to five-membered pure inorganic heterocycles include one Mo, one or two tetrel, and one or Angewandte Chemie (International ed. in English)Pure Molecular Inorganic Rings: Mixed Group 14/15 Metallacycles.PMC12828447INST 40/575-1 FUGGSche 384/45-1470309834 RO 2008/21-1Roesky PWScheer MMaier SKoppe RSun XZimmermann LfalsePure Molecular Inorganic Rings: Mixed Group 14/15 Metallacycles.A systematic study on the reactivity of the homodipnictogen tetrahedrane complexes [{Cp'Mo(CO)2}2(μ,η2:2-E2)] (E ═ P, As, Sb; Cp' = η5-C5H4tBu) towards the disilylene [LPhSi]2 and digermylene [LPhGe]2 (LPh = PhC(NtBu)2) is presented. Depending on the specific combination of tetrel and pnictogen atom, a variety of novel silicon-pnictogen and germanium-pnictogen heterocycles in different bonding situations were obtained. This is a significant development, as these metallacycles are unprecedented and offer new possibilities for further reactivities. These three- to five-membered pure inorganic heterocycles include one Mo, one or two tetrel, and one or 2026-01-01T00:00:00Z2026 Jan2026-06-06T21:45:59.272Z2026-06-05T03:11:48.855ZS-EPMC128284474127314910.1002/anie.202520366