Synthesis and phosphorus-31 NMR spectroscopy of trinuclear, phosphido-bridged iridium and rhodium clusters. Crystal and molecular structures of [M3(.mu.-PPh2)3(CO)nL2] (M = Ir or Rh, n = 3, L2 = 1,2-bis(diphenylphosphino)methane; M = Ir, n = 5, L = tert-BuNC)

Autor:	David E. Berry, Jane Browning, Khashayar. Dehghan, Neil J. Meanwell, Andrew J. Phillips, Keith R. Dixon
Rok vydání:	1991
Předmět:	Nitrile Stereochemistry chemistry.chemical_element Crystal structure Nuclear magnetic resonance spectroscopy Medicinal chemistry Rhodium Inorganic Chemistry chemistry.chemical_compound chemistry Cyclooctene Phosphorus-31 NMR spectroscopy Iridium Physical and Theoretical Chemistry Triphenylphosphine
Zdroj:	Inorganic Chemistry. 30:396-402
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic00003a009
Popis:	Reaction of [Ir 2 (cyclooctene) 4 Cl 2 ] with CO, NHEt 2 , and PHPh 2 provides a synthetic route to the trinuclear, phosphido-bridged iridium clusters [Ir 3 (μ-PPh 2 ) 3 (CO) n L 2 ] (n=3, L=CO or PPh 3 , L 2 =bis(diphenylphosphino)methane (dppm); n=5, L=t-BuNC). The CO and PPh 3 complexes are analogues of previously known rhodium derivatives, and rhodium analogues of the dppm and t-BuNC complexes are also reported. [Ir 3 (μ-PPh 2 ) 3 (CO) 3 (dppm)] (I) and [Rh 3 (μ-PPh 2 ) 3 (CO) 3 (dppm)] (II) crystallize in the Pnma space group (Z=4)
Databáze:	OpenAIRE
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