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Publication details

Title
Molybdenum(II) Complexes with -Diimines: Catalytic Activity in Organic and Ionic Liquid Solvents

Authors
Marta S. Saraiva
Dep. Química e Bioquímica
CQB - Centro de Química e Bioquímica 
Carla D. Nunes
CQB - Centro de Química e Bioquímica 
CQE-Ciências - Centro de Química Estrutural-Ciências
Vítor Félix
UNIVERSIDADE DE AVEIRO
Ana P. C. Ribeiro
INSTITUTO SUPERIOR TÉCNICO
Carlos Nieto de Castro
Dep. Química e Bioquímica
CQE-Ciências - Centro de Química Estrutural-Ciências
Maria José Calhorda
Dep. Química e Bioquímica
CQB - Centro de Química e Bioquímica 
BIOISI - Instituto de Biossistemas e Ciências Integrativas

Document type
Journal articles

Scope
International

Refereeing
Yes

Document type
Full paper

Summary
\\\\nThe new [MoX(η3?C3H5)(CO)2(α?diimine)] complexes with: (i) X = Br or triflate and α?diimine = 1,10?phenanthroline (phen) and dipyridophenazine (dppz); and (ii) X = Br and α?diimine = phen and dppz, with several substituents, are synthesized and characterized. The structures of [MoBr(η3?C3H5)(CO)2(Cl?phen)] and [Mo(CF3SO3)(η3?C3H5)(CO)2(dppz)] are determined by using single?crystal X?ray diffraction. These and three complexes of 2,2′?bipyridyl (bpy), and its two derivatives with Me and tBu substituents, are tested in the homogeneous catalytic epoxidation of several olefins in dichloromethane, exhibiting, in general, a good selectivity towards the respective epoxide and relatively low TOFs. For the first time, the oxidation of cis?cyclooctene with some of these catalysts is also conducted in a variety of room?temperature ionic liquids (RTILs). In the presence of [MoBr(η3?C3H5)(CO)2(phen)], the conversions, in general, increase, compared with the reactions in organic solvents. Interestingly, different chemoselectivity is found when [C6mim][Ntf2] and [C2mim][FAP] are used with diol (24–26 %). On the other hand, [MoBr(η3?C3H5)(CO)2(L)] (L = Me?phen or dppz) exhibits much lower conversions in the RTILs tested than in common organic solvents.

Date of Publication
2018-08-26

Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Where published
European Journal of Inorganic Chemistry

ISSN
1434-1948

Publisher
Wiley

Volume
2018
Number
35

Starting page
3922
Last page
3932

Identifiers
DOI - http://dx.doi.org/10.1002/ejic.201800700

Rankings
SCIMAGO Q2 (2018) - 0.736 - Inorganic Chemistry
Web Of Science Q2 (2018) - 2.578 - CHEMISTRY, INORGANIC & NUCLEAR - SCIE
SCOPUS Q2 (2017) - 0.828 - Inorganic Chemistry

Keywords
Catalysis Molybdenum ?-diimine epoxidation ionic liquids


Export

APA
Marta S. Saraiva, Carla D. Nunes, Vítor Félix, Ana P. C. Ribeiro, Carlos Nieto de Castro, Maria José Calhorda, (2018). Molybdenum(II) Complexes with -Diimines: Catalytic Activity in Organic and Ionic Liquid Solvents. European Journal of Inorganic Chemistry, 2018, 3922-3932. ISSN 1434-1948. eISSN . http://dx.doi.org/10.1002/ejic.201800700

IEEE
Marta S. Saraiva, Carla D. Nunes, Vítor Félix, Ana P. C. Ribeiro, Carlos Nieto de Castro, Maria José Calhorda, "Molybdenum(II) Complexes with -Diimines: Catalytic Activity in Organic and Ionic Liquid Solvents" in European Journal of Inorganic Chemistry, vol. 2018, pp. 3922-3932, 2018. 10.1002/ejic.201800700

BIBTEX
@article{37360, author = {Marta S. Saraiva and Carla D. Nunes and Vítor Félix and Ana P. C. Ribeiro and Carlos Nieto de Castro and Maria José Calhorda}, title = {Molybdenum(II) Complexes with -Diimines: Catalytic Activity in Organic and Ionic Liquid Solvents}, journal = {European Journal of Inorganic Chemistry}, year = 2018, pages = {3922-3932}, volume = 2018 }