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Mehrfachbindungen zwischen Hauptgruppenelementen und Übergangsmetallen, CIX. Strukturchemische Aspekte der Fluorolefin‐;Chemie von Osmiumtetraoxid: Halogenierte Osmatester und Folgeprodukte
Author(s) -
Herrmann Wolfgang A.,
Eder Stefan J.,
Scherer Wolfgang
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931260107
Subject(s) - chemistry , osmium , pyridine , oxalate , stereochemistry , crystal structure , transition metal , medicinal chemistry , crystallography , catalysis , organic chemistry , ruthenium
Multiple Bonds Between Main Group Elements and Transition Metals, CIX. — Structural Aspects of Fluoroolefin Oxidation by Osmium Tetraoxide: Halogenated Osmate Esters and Their Products The crystal and molecular structures of the first fluorinated osmate ester 1 , the dioxoosmium(VI) dichloride 2 , and the dioxoosmium(VI) oxalate 3 have been determined by single‐crystal X‐ray diffraction. They all contain the trans ‐osmyl group {OsO 2 } 2+ and cis ‐oriented sets of ligands, typical of complexes (py) 2 OsO 2 X 2 (py = pyridine). Increasing electron‐withdrawing power of the ligands X entails shortening of the OsN bonds, resulting in higher stability of these complexes against dissociation of pyridine.