Related Products of 19845-69-3, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.19845-69-3, Name is 1,6-Bis(diphenylphosphino)hexane, molecular formula is C30H32P2. In a patent, introducing its new discovery.
Oxidation of fac-[M(CO)3(NCME)3] (M = Mo or W) with I2Cl6. Reactions of the seven-coordinate complex [WCl(ClICl)(CO)3(NCME)2]
Reaction of fac-[Mo(CO)3(NCMe)3] (prepared in situ) with I2Cl6 resulted in a large amount of effervescence and the formation of a dark red-brown solution, and a yellow precipitate. Both the yellow precipitate and the orange solid resulting from work-up of the dark red-brown solution were found to be the Mo-Mo bonded non-carbonyl containing tetracationic complex [Mo2(NCMe)8][Cl]2[ClICl]2 (1). Oxidation of fac-[W(CO)3(NCMe)3] (prepared in situ) with I2Cl6 gave the seven-coordinate complex [WCl(ClICl)(CO)3(NCMe)2] (2). Treatment of 2 with an equimolar amount of L {L = PPh3 [stirred for 1 min], AsPh3 [stirred for 3 min] and SbPh3 [stirred for 5 min]} in CH2Cl2 at room temperature gave [WCl(ClICl)(CO)3(NCMe)L] (3-5). Reaction of [WCl(ClICl)(CO)3(NCMe)2] with an equimolar amount of L {L = PPh3, AsPh3 and SbPh3} in CH2Cl2 at room temperature for 24 h gave the chloro-bridged complexes [{W(mu-Cl)(ClICl)(CO)3L}2] (6-8). Reaction of [WCl(ClICl)(CO)3-(NCMe)2] with 2 equiv. of RC2R (R= Me or Ph) in CH2Cl2 at room temperature gave the bis(alkyne) complexes [WCl(ClICl)(CO)(NCMe)(eta2-RC2R)2] (9 and 10). The reactions of [WCl(ClICl)(CO)(NCMe)(eta2-PhC2Ph)2] with 1 equiv. of L ? L {L ? L = Ph2P(CH2)nPPh2 (n= 1-4, 6) or 2,2?-bipyridine} in CH2Cl2 at room temperature afforded the complexes [WCl(ClICl)(CO)(L ? L)(eta2-PhC2Ph)] (11-16). Treatment of [WCl(ClICl)(CO)(NCMe)(eta2-RC2R)2] (R = Me or Ph) with 2 equiv. of L ? L {L ? L = Ph2P(CH2)nPPh2 (n= 1-4, 6) in CH2Cl2 at room temperature afforded the dicationic complexes [W(CO)(L ? L)2(eta2-RC2R)][Cl][ClICl]·CH 2Cl2 (17-26). All the new complexes described in this paper were characterised by elemental analysis, IR and 1H NMR spectroscopy.
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate