Universität zu Köln

Anwander, Reiner, Dolg, Michael ORCID: 0000-0002-0538-0837 and Edelmann, Frank T. ORCID: 0000-0001-5209-0018 (2017). The difficult search for organocerium(IV) compounds. Chem. Soc. Rev., 46 (22). S. 6697 - 6710. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 1460-4744

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Abstract

This Tutorial Review provides an overview of the historic and current development of the organometallic chemistry of cerium in its oxidation state 4+. Among the tetravalent lanthanide ions, only Ce4+ forms stable coordination compounds (e.g. (NH4)(2)[Ce(NO3)(6)]). Important fields of applications for cerium(IV) compounds include organic synthesis, bioinorganic chemistry, materials science, and industrial catalysis. In sharp contrast, organometallic cerium(IV) compounds are still exceedingly rare. The history of organocerium(IV) compounds is an exciting story of ups and downs. The so-called cerocene (= bis(eta(8)-cyclooctatetraenyl) cerium) has been known since 1976. Other early reports e.g. about Cp4Ce (Cp = eta(5)-cyclopentadienyl), were later disproven. However, significant progress in this field has been made in recent years through the use of carefully designed ligands and more sophisticated synthesis protocols. Taking the case of organocerium(IV) chemistry, this Tutorial Review also tries to exemplarily show how difficult synthetic and theoretical problems can eventually be solved through newly designed synthesis strategies (e.g. as accomplished for cyclopentadienyl and carbene derivatives) and a rewarding collaboration between synthetic and theoretical chemists (cf. the cerocene problem).

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Anwander, Reiner UNSPECIFIED UNSPECIFIED UNSPECIFIED Dolg, Michael UNSPECIFIED orcid.org/0000-0002-0538-0837 UNSPECIFIED Edelmann, Frank T. UNSPECIFIED orcid.org/0000-0001-5209-0018 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-211028
DOI:	10.1039/c7cs00147a
Journal or Publication Title:	Chem. Soc. Rev.
Volume:	46
Number:	22
Page Range:	S. 6697 - 6710
Date:	2017
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	1460-4744
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Theoretical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TRANSITION-METAL COMPOUNDS; TETRAVALENT CERIUM; OXIDATION-STATE; GROUND-STATE; ELECTRONIC-STRUCTURE; COMPLEXES; CEROCENE; CHEMISTRY; CE; LANTHANIDE Multiple languages Chemistry, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/21102