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
复制标题

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
复制
发表时间:
2021
期刊:
影响因子:
2.8
通讯作者:
Bart, Suzanne C.
Bart, Suzanne C.
中科院分区:
化学2区
文献类型:
--
作者:
Kieser, Jerod M.;Jones, Leighton O.;Uible, Madeleine C.;Zeller, Matthias;Schatz, George C.;Bart, Suzanne C.

文献摘要

参考文献

被引文献

相似文献

我们报道了第一系列具有η5-配体的碲和硒配合物的合成和表征。Ph_3TeX(X = Cl,S_2CNEt_2)与MCpR(M = Li,K; R = H,Me_4,Me_5)反应分别得到高产率的[Cp][TePh_3](1),[CpMe_4][TePh_3](2)和[Cp ~*][TePh_3](3).类似地,Ph 3SeCl与LiCp和KCp* 反应得到[Cp][SePh 3](4)和[Cp*][SePh 3](5)。X射线晶体学对它们的特征进行了表征,发现它们具有相似的η5配位,几乎没有理想化的半三明治几何形状的变形,可能是碲和硒上剩余的孤对电子。Te-质心距离相对较长(1:2.770(3),2:2.746(1)和3:2.733(1)),表明主要是离子相互作用。Se的质心距离(4:2.748(3),5:2.707(2),2.730(2))非常接近,尽管其原子半径较小.化合物2、3和5在室温下显示快速分解,挤出苯基化的环戊二烯和相应的二苯基硫属化物。通过DFT方法研究了这些复合物中的键合性质,发现其主要是离子性质。
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.
DOI: 10.1002/slct.201701497
发表时间: 2017-08-22
期刊: CHEMISTRYSELECT
影响因子: 2.1
作者:
Kreyenschmidt, Anne-Kathrin;Bachmann, Sebastian;Stalke, Dietmar
通讯作者: Stalke, Dietmar
三(二甲氨基)环戊二烯锍[TAS]+[C5H5]− 和三(二甲氨基)锍吡咯烷[TAS]+[C4H4N]−:两种具有“裸”阴离子 A− 和“反”夹心阳离子 [{( Me2N)3S}2A]+ (A = C5H 5−, C4H4N−)
DOI: 10.1002/anie.199504431
发表时间: 1995
期刊: Angewandte Chemie
影响因子: --
作者:
Jens Wessel;U. Behrens;E. Lork;R. Mews
通讯作者: R. Mews
游离和络合物稳定的双(环戊二烯基)碲: [η1-(Me3Si)3C5H2]2Te 和 [η1-(Me3Si)3C5H2]2TeW(CO)5 的合成和结构
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
五甲基环戊二烯基取代的磷和砷阳离子:5A 族元素和碳环配体之间多重键合的证据
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