Benzodiselenagermoles and spirobisbenzodiselenagermoles

Tavarès, Pascale; Meunier, Philippe; Kubicki, Marek M.; Gautheron, B.; Dousse, G.; Lavayssière, H.; Satgé, J.

doi:10.1002/hc.520040412

Cited by 38 publications

(2 citation statements)

References 53 publications

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“…Recently, we have shown [1,2] that the complexes of zirconium bearing two selenium atoms are good precursors to various heterocyclic systems particularly those with elements of the column 14. In this case, the transition metal complexes act as a source of the o-dichalcogenobenzene ligand, but we have found that the method recommended by Rauchfuss [3] could also be favorably employed for this purpose.…”

Section: Introductionmentioning

confidence: 99%

“…Among the chalcogen-containing germanium representatives, some with the ligands o-dioxa-or o-dithiaphenylene [2] and o-diselenaphenylene [4] have been already described, but to the best of our knowledge nothing was published about complexes with germanium-tellurium bonds and only little is known for germanium complexes with two different germanium-chalcogen bonds. The few works in this area concern oxygen-sulfur, oxygen-selenium [5] or sulfur-selenium [6] linkages taking part in digermaniumcontaining complexes bridged by the chalcogen atoms.…”

Section: Introductionmentioning

confidence: 99%

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Benzoheterodichalcogenagermoles and Spirobisbenzoheterodichalcogenagermoles

Tavarès¹,

Meunier²,

Gautheron³

et al. 1994

Main Group Metal Chemistry

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Benzodichalcogenagermoles R'2Ge(-S-C6H4-o-X-) (R'=C2H5, Ph ; X = Se, Te) and spirobisbenzodichalcogenagermoles [(-S-C6H4-o-X-)2Ge] (X = Se, Te) were synthesized from the appropriate lithium benzene dichalcogenolate and germanedichlorides (R'2GeCl2) or germanium tetrachloride respectively. The compounds were characterized by microanalysis, lH, 13 C , 77 Se NMR and mass spectrometry. Comparative comments with homodichalcogenate congeners are reported. 565 Brought to you by | Purdue University Libraries Authenticated Download Date | 5/30/15 1:50 PM

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Benzoheterodichalcogenagermoles and Spirobisbenzoheterodichalcogenagermoles

Tavarès¹,

Meunier²,

Gautheron³

et al. 1994

Main Group Metal Chemistry

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A Mesoionic Diselenolene Anion and the Corresponding Radical Dianion

Dong

Sienkiewicz

Suleymanov

et al. 2022

Chemistry A European J

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Dichalcogenolenes are archetypal redox non-innocent ligands with numerous applications. Herein, a diselenolene ligand with fundamentally different electronic properties is described. A mesoionic diselenolene was prepared by selenation of a C2-protected imidazolium salt. This ligand is diamagnetic, which is in contrast to the paramagnetic nature of standard dichalcogenolene monoanions. The new ligand is also redox-active, as demonstrated by isolation of a stable diselenolene radical dianion. The unique electronic properties of the new ligand give rise to unusual coordination chemistry. Thus, preparation of a hexacoordinate aluminum tris(diselenolene) complex and a Lewis acidic aluminate complex with two ligand-centered unpaired electrons was achieved.

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