Halogen and Hydrogen Bonds in Co-crystalline Ferrocenium Organotellurium Halide Salts
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The reactions of ferrocene and decamethylferrocene with vinyltellurium trichloride Ph(Cl)C= C(Ph)TeCl3 afford unusual co-crystalline salts [Cp2Fe]+Cl–Ph(Cl)C=C(Ph)TeCl2OH (I) and [(C5Me5)2Fe]+Cl–(Ph(Cl)C=C(Ph)TeCl2OH) (II). The Ph(Cl)C=C(Ph)TeCl2OH molecule in these salts is neutral and forms only non-covalent (hydrogen and chalcogen) bonds with the chloride ion. The hydrolytic replacement of a chlorine atom not involved in the three-center four-electron Cl–Te–Cl bond in Ph(Cl)C=C(Ph)TeCl3 is due to the general moisture sensitivity of organic telluriium halides, and the accompanying oxidation of ferrocene is not a necessary condition for the formation of Ph(Cl)C=C(Ph)TeCl2OH (III). (CCDC nos. 1908530 (I), 1908531 (II), 1908532 (III).)
Keywords:halogen bonds chalcogen bonds hydrogen bonds co-crystalline salts tellurium halides ferrocene X-ray diffraction
The authors are grateful to the Center for Collective Use of Physical Investigation Methods, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences for providing use of research equipment.
The XRD measurements were performed using shared experimental facilities supported by IGIC RAS state assignment. The authors also acknowledge the support by project I.35 of Presidium of the RAS.
CONFLICT OF INTEREST
The authors declare that they have no conflict of interest.
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