- Stereodynamics of trans-MCl2 and trans-2M(CO)Cl . Dynamic NMR and X-ray Crystallographic Studies
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Single-crystal X-ray analysis of trans-2MCl2 for which M = Pt(II) or Pd(II) reveals a molecular conformation (CI) in which both phenyl groups are mutually anti.In both cases, the metal atom lies on a crystallographic inversion cente
- DiMeglio, Christine M.,Luck, Linda A.,Rithner, Christopher D.,Rheingold, Arnold L.
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- Preparation method of bis(ditert-butyl phenyl phosphine)palladium dichloride
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The invention discloses a preparation method of bis(ditert-butyl phenyl phosphine)palladium dichloride. The preparation method includes the following steps that (1) palladium sponge is dissolved in royal water, concentrated, saltpetre-removed and then filtered, and a filtrate is diluted with water to obtain a solution of palladium chloride acid; and then the filtrate is dropwise added into an ethanol solution of 1,5-cyclooctadiene, reacted until precipitation is no longer precipitated, and filtration is conducted to obtain 1,5-cyclooctadiene palladium chloride; (2) a phenyl grignard reagent isdropwise added into a tetrahydrofuran solution of bi tertiary butyl phosphorus dichloride to obtain a tetrahydrofuran solution of bis(ditert-butyl phenyl phosphine); (3) the tetrahydrofuran solutionof the bis(ditert-butyl phenyl phosphine) is dropwise added into a tetrahydrofuran solution of the1,5-cyclooctadiene palladium chloride; (4) filtration is conducted, and a filter cake is washed with anhydrous ethanol; and (5) drying is conducted. According to the preparation method, the 1,5-cyclooctadiene palladium chloride prepared by taking the palladium chloride acid as a metal source is used as a reaction precursor, the prepared bis(ditert-butyl phenyl phosphine) is used as an ligand, the ligand does not require purification, and the yield of products is high.
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Paragraph 0015-0018
(2020/02/17)
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- Preparation, characterization, and some reactions of tri-tert-butylarsine complexes of platinum(II) and palladium(II) chlorides
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As(t-Bu)3 reacts with platinum(II) chlorides to afford either trans-PtCl2[As(t-Bu)3]2 or the dinuclear complex Pt2(μ-Cl)2Cl2[As(t-Bu)3] 2. With palladium(II) chloride, however, only the dinuclear complex Pd2(μ-Cl)2Cl2[As(t-Bu)3] 2 is formed even in the presence of excess As(t-Bu)3. These complexes undergo substitution and/or bridge-cleavage reactions with CO, py, AsPh3, Cl-, or tertiary phosphines.
- Goel, Ram G.,Ogini, William O.,Srivastava, Ramesh C.
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p. 3611 - 3616
(2008/10/08)
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