10.18453/rosdok_id00004767 Both, Niklas Felix Niklas Felix Both http://d-nb.info/gnd/1364090341 https://orcid.org/0000-0002-0565-4164 Universität Rostock 2024 540 Chemistry & allied sciences 2024 en https://purl.uni-rostock.de/rosdok/id00004767 urn:nbn:de:gbv:28-rosdok_id00004767-5 In this work, the synthesis of manganese complexes with easily accessible bidentate bis(NHC) ligands and their use as precatalysts for the hydrogenation of carboxylic acid esters as well as ketones, nitriles, N-heteroarenes and alkenes is described. Furthermore, the use of molybdenum catalysts with PNP pincer ligands for the semihydrogenation of alkynes is investigated. Finally, the bis(NHC) ligands are used to develop molybdenum-based catalyst systems for the hydrogenation of carboxylic acid esters.