X-Ray Crystal Structures of Two Monopentamethylcyclopentadienylhafnium(IV) Complexes
Authors
Mena Montoro, Miguel; Pérez Redondo, Adrián; Varela Izquierdo, Víctor; Yélamos Sánchez, CarlosIdentifiers
Permanent link (URI): http://hdl.handle.net/10017/50660DOI: 10.1134/S1063774521030184
ISSN: 1063-7745
Date
2021-05-25Embargo end date
2022-05-25Funders
Universidad de Alcalá
Bibliographic citation
Crystallography Reports, 2021, v. 66, n. 3, p. 448-454
Project
CCG2018/EXP-008
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© Pleiades Publishing, 2020
Access rights
info:eu-repo/semantics/openAccess
Abstract
The crystal structures of two monopentamethylcyclopentadienyl-hafnium(IV) derivatives have been determined by X-ray diffraction analysis. The [Hf(eta5-C5Me5)Cl3] complex (I) crystallizes as a dimer in the monoclinic space group C2/c with Z = 8. The structure of I is described as two {Hf(eta5-C5Me5)Cl2} units linked by two bridging chloride ligands. The [{Hf(eta5-C5Me5)Cl}3(mu-Cl)4(mu3-O)] complex (II) crystallizes in the monoclinic space group Cc with Z = 4. The structure of II is described as three {Hf(eta5-C5Me5)Cl} moieties connected by one or two bridging mu-chloride ligands and an additional mu3-oxide group. The hitherto unknown compound II has also been characterized by spectroscopic and analytical methods. In the solid state, the molecules of both derivatives are linked by C-H···Cl hydrogen bonds and C-H···pi interactions, providing an alternating layered pattern.
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