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|Title:||Pyrazole-derived remote dicarbenes: Versatile ligands for Di-and tetranuclear complexes|
|Authors:||Han, Y. |
|Citation:||Han, Y., Lee, L.J., Huynh, H.V. (2010-01-18). Pyrazole-derived remote dicarbenes: Versatile ligands for Di-and tetranuclear complexes. Chemistry - A European Journal 16 (3) : 771-773. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.200902737|
|Abstract:||A study was conducted to demonstrate the coordination chemistry remote and abnormal dicarbenes and their use as a new class of organometallic spacers for the formation of di- and tetranuclear PdII complexes. The suitable ligand precursors with bridges of different lengths were obtained through alkylation of 4,4'-di-iododipyrazoles with Me3OBF4 as white solids in moderate to high yields of 86%, 93% and 62%. The topology of ligand precursors ensured the formation of di- or polynuclear complexes and prevented chelation of the resulting dicarbenes. Dipyrazolium salt was reacted with a pre-mixed solution of [Pd2(dba)3]/PPh3 to synthesize a dinuclear PdII -dicarbene complex. It was also demonstrated that novel dipyrazolin-4-ylidenes were versatile building-blocks for di- or tetranuclear architectures.|
|Source Title:||Chemistry - A European Journal|
|Appears in Collections:||Staff Publications|
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