Cagelike Rb2-, K2-, and Na2-Tetracopper(II) Silsesquioxanes with Quaternary Ammonium Cations: Synthesis, Structures, and Catalytic Activity Full article
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Organometallics
ISSN: 0276-7333 , E-ISSN: 1520-6041 |
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Output data | Year: 2023, Volume: 42, Number: 18, Pages: 2577–2589 Pages count : 13 DOI: 10.1021/acs.organomet.2c00649 | ||||||||||||||||||||
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Abstract:
Ten copper-based cage silsesquioxanes were prepared via convenient self-assembly synthesis employing halides of different quaternary ammonium cations, namely, Me4NBr, Et4NBr, PhMe3NCl, BzMe3NCl, and BzEt3NCl. This approach led to cages of similar Cu4M2 nuclearity (M = Rb, K, or Na). Sandwich-like structures of all compounds were established by single-crystal X-ray diffraction studies using synchrotron radiation. In all products, anionic cages are based on two cyclic silsesquioxane [Ph6Si6O12] ligands, coordinating to a central hexagonal CuII4M2 motif with a 2M6-1 topology. The complexes include two charge balancers, namely, quaternary N-cations located at the external (crown ether-like) positions to cage fragments. Selected compounds were tested as homogeneous multicopper(II) catalysts in a series of model reactions, such as the mild oxidation and carboxylation of alkanes, including inert gaseous C2–C4 saturated hydrocarbons. This study extends the types of synthetic approaches and family of ionic metallasilsesquioxanes with promising structural features and catalytic properties.
Cite:
Bilyachenko A.N.
, Khrustalev V.N.
, Astakhov G.S.
, Zueva A.Y.
, Arteev I.S.
, Zubavichus Y.V.
, Korlyukov A.A.
, Dorovatovskii P.V.
, Shul’pina L.S.
, Ikonnikov N.S.
, Kirillova M.V.
, Shubina E.S.
, Kozlov Y.N.
, Kirillov A.M.
, Shul'pin G.B.
Cagelike Rb2-, K2-, and Na2-Tetracopper(II) Silsesquioxanes with Quaternary Ammonium Cations: Synthesis, Structures, and Catalytic Activity
Organometallics. 2023. V.42. N18. P.2577–2589. DOI: 10.1021/acs.organomet.2c00649 WOS Scopus РИНЦ ANCAN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Cagelike Rb2-, K2-, and Na2-Tetracopper(II) Silsesquioxanes with Quaternary Ammonium Cations: Synthesis, Structures, and Catalytic Activity
Organometallics. 2023. V.42. N18. P.2577–2589. DOI: 10.1021/acs.organomet.2c00649 WOS Scopus РИНЦ ANCAN OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
Submitted: | Dec 26, 2022 |
Published online: | Mar 23, 2023 |
Published print: | Sep 25, 2023 |
Identifiers:
Web of science: | WOS:000961993300001 |
Scopus: | 2-s2.0-85151354354 |
Elibrary: | 62970901 |
Chemical Abstracts: | 2023:587171 |
Chemical Abstracts (print): | 184:102526 |
OpenAlex: | W4360609269 |
publication_identifier.sciact_skif_identifier_type: | 575 |