17985-89-6Relevant academic research and scientific papers
Ethylene tetramerization: A new route to produce 1-octene in exceptionally high selectivities
Bollmann, Annette,Blann, Kevin,Dixon, John T.,Hess, Fiona M.,Killian, Esna,Maumela, Hulisani,McGuinness, David S.,Morgan, David H.,Neveling, Arno,Otto, Stefanus,Overett, Matthew,Slawin, Alexandra M. Z.,Wasserscheid, Peter,Kuhlmann, Sven
, p. 14712 - 14713 (2004)
Linear α-olefins, such as 1-hexene and 1-octene, are important comonomers in the production of linear low-density polyethylene (LLDPE). The conventional method of producing 1-hexene and 1-octene is by oligomerization of ethylene, which yields a wide spectrum of linear α-olefins (LAOs). While there exists several processes for producing 1-hexene via ethylene trimerization, a similar route for the selective production of 1-octene has so far been elusive. We now, for the first time, report an unprecedented ethylene tetramerization reaction that produces 1-octene in selectivities exceeding 70%, using an aluminoxane-activated chromium/((R2)2P)2NR1 catalyst system. Copyright
Highly functionalizable penta-coordinate iron hydrogen production catalysts with low overpotentials
Eady, Shawn C.,Breault, Tanya,Thompson, Levi,Lehnert, Nicolai
, p. 1138 - 1151 (2016/01/15)
Penta-coordinate iron carbonyl complexes that are built around the rigid Fe(PNP) motif (PNP = (C6H5)2PN(R)P(C6H5)2) are synthesized and structurally and spectroscopically characterized. The
Catalytic activity of new PdII-complexes of bidentate PIII - N - PIII-ligands in Suzuki - Miyaura reaction
Aladzheva,Bykhovskaya,Vasi?ev,Nelyubina, Yu. V.,Klemenkova
, p. 909 - 913 (2015/12/24)
A reaction of readily available bis(diphenylphosphino)amines with (PhCN)2PdCl2 was used to synthesize PdII-complexes [Pd{Ph2PN(R)PPh2}Cl2] (R = Pr i, cyclo-C6H11
Preparation, characterization, and reactivity of dinitrogen molybdenum complexes with bis(diphenylphosphino)amine derivative ligands that form a unique 4-membered P-N-P chelate ring
Ogawa, Takahiko,Kajita, Yuji,Wasada-Tsutsui, Yuko,Wasada, Hiroaki,Masuda, Hideki
, p. 182 - 195 (2013/02/23)
Five dinitrogen-molybdenum complexes bearing bis(diphenylphosphino)amine derivative ligands (LR) that form a unique 4-membered P-N-P chelate ring, trans-[Mo(N2)2(LR)2] (2 R: R = Ph, Xy, p-MeOPh, 3,5-iPr2Ph, iPr), were prepared for the purpose of binding a dinitrogen molecule. The corresponding two dichloride-molybdenum complexes, trans-[MoCl2(LR) 2] (1R: R = Ph, Xy), were also prepared as comparisons. FT-IR spectra of 2R were measured and compared the ν(Ni? - N) values. Moreover, X-ray crystal structure determination of 1R (R = Ph, Xy) and 2R (R = Xy, 3,5-iPr2Ph) is performed. These experimental results indicated that the coordinated dinitrogen molecule gets easily influenced by the N-substitutent of diphosphinoamine ligand. In addition, to investigate the effect of the properties of the diphosphinoamine ligand for the dinitrogen molybdenum complexes, we performed DFT calculations that focused on the difference of N-substituent, the dihedral angle between P-N-P plane and N-substituent aryl group, and the P-N-P bite angle. This calculation revealed that the competition between the back-donation from metal to dinitrogen and that from metal to ligand was affected by P-N-P bite angle and the dihedral angle of N-substituent of ligand. In order to examine the reactivity with respect to conversion of dinitrogen to ammonia, protonation and trimethylsilylation reactions of the coordinated dinitrogens were carried out for 2R.
Chelating versus bridging bonding modes of N-substituted bis(diphenylphosphanyl)amine ligands in Pt complexes and Co2Pt clusters
Gallo, Vito,Mastrorilli, Piero,Nobile, Cosimo F.,Braunstein, Pierre,Englert, Ulli
, p. 2342 - 2349 (2007/10/03)
N-Substituted dppa ligands Ph2P-NR-PPh2 [R = -CH 2CH2SCH2C6H5 (1), -CH2CH2S(CH2)5CH3 (2), -(CH2)9CHs
