Hinz Alexander, Winkler Lucas, Sun Xiaofei
Karlsruhe Institute of Technology (KIT) Institute of Inorganic Chemistry (AOC) Engesserstr. 15, Gebäude 30.45, 76131 Karlsruhe, Germany.
Chem Commun (Camb). 2024 Oct 3;60(80):11291-11294. doi: 10.1039/d4cc03714f.
The bulky monodentate carbazolyl ligand 1,8-bis(3,5-dibutylphenyl)-3,6-dibutylcarbazole (Cbz) was employed in the synthesis of monomeric heteroleptic amido carbazolyl complexes of Ca and Yb. For both central metal atoms, dimeric hydride complexes [(Cbz)Ca(benzene)H], [(Cbz)Ca(THF)H], [(Cbz)Yb(benzene)H] and [(Cbz)Yb(THF)H] were obtained, which show remarkably poor solubility in organic solvents. The characteristic hydride H NMR resonance of [(Cbz)Ca(benzene)H] was observed at 2.07 ppm, and for the first time, characteristic vibrational modes of the CaH and YbH moiety are discussed. Despite their poor solubility, the hydride complexes could be reacted with CO to yield the corresponding ethenediolate complexes.
庞大的单齿咔唑基配体1,8 - 双（3,5 - 二丁基苯基）-3,6 - 二丁基咔唑（Cbz）被用于合成Ca和Yb的单体杂配酰胺基咔唑基配合物。对于这两种中心金属原子，均得到了二聚氢化物配合物[(Cbz)Ca(苯)H]、[(Cbz)Ca(四氢呋喃)H]、[(Cbz)Yb(苯)H]和[(Cbz)Yb(四氢呋喃)H]，它们在有机溶剂中的溶解度非常低。[(Cbz)Ca(苯)H]的特征氢化物¹H NMR共振在2.07 ppm处被观测到，并且首次讨论了CaH和YbH部分的特征振动模式。尽管它们的溶解度很差，但氢化物配合物可与CO反应生成相应的乙二氧基配合物。
