Late to the Party: Synthesis and Characterization of Tellurium and Selenium Half-Sandwich Complexes
Late to the Party: Synthesis and Characterization of Tellurium and Selenium Half-Sandwich Complexes
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迟到的聚会:碲和硒半三明治配合物的合成和表征
DOI:
10.1021/acs.organomet.1c00546
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发表时间:
2021
期刊:
影响因子:
2.8
通讯作者:
Bart, Suzanne C.
中科院分区:
文献类型:
--
作者:
Kieser, Jerod M.;Jones, Leighton O.;Uible, Madeleine C.;Zeller, Matthias;Schatz, George C.;Bart, Suzanne C.
We report the synthesis and characterization of the first series of tellurium and selenium complexes featuring an η5-cyclopentadienyl ligand. Reaction of Ph3TeX (X = Cl, S2CNEt2) with MCpR(M = Li, K; R = H, Me4, Me5) results in high yields of [Cp][TePh3] (1), [CpMe4][TePh3] (2), and [Cp*][TePh3] (3), respectively. Similarly, reaction of Ph3SeCl with LiCp and KCp* furnishes [Cp][SePh3] (4) and [Cp*][SePh3] (5). Each was characterized by X-ray crystallography, revealing similar η5-coordination with little distortion from an idealized half-sandwich geometry, presumably from the remaining lone pair on tellurium and selenium. The Te–centroid distances are relatively long (1: 2.770(3),2: 2.746(1), and3: 2.733(1) Å), suggesting a mostly ionic interaction. Se–centroid distances (4: 2.748(3),5: 2.707(2), 2.730(2) Å) were found to be surprisingly similar despite its smaller atomic radius. Compounds2,3, and5display rapid decomposition at room temperature, extruding a phenylated cyclopentadiene and the respective diphenylchalcogenide. The nature of bonding within these complexes was investigated through DFT methods and found to be primarily ionic in nature.
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影响因子:
2.1
作者:
Kreyenschmidt, Anne-Kathrin;Bachmann, Sebastian;Stalke, Dietmar
通讯作者:
Stalke, Dietmar
影响因子:
--
作者:
Jens Wessel;U. Behrens;E. Lork;R. Mews
通讯作者:
R. Mews
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
G. Thaler;K. Wurst;F. Sladky
通讯作者:
F. Sladky
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
S. Baxter;A. Cowley;S. K. Mehrotra
通讯作者:
S. K. Mehrotra
DOI:
--
发表时间:
1980
期刊:
影响因子:
--
作者:
S. Glover
通讯作者:
S. Glover