31398-19-3Relevant academic research and scientific papers
Metal-Ligand Bonding in Coinage Metal-Phosphine Complexes: The Synthesis and Structure of Some Low-Coordinate Silver(I)-Phosphine Complexes
Bachman, Robert E.,Andretta, David F.
, p. 5657 - 5663 (2008/10/08)
Reaction of AgBF4 with 2 equiv of Ph3P in acetonitrile followed by recrystallization from dichloromethane/hexane yields the mixed phosphine-nitrile complex [(Ph3P)2AgNCCH3]BF4 (I) as its di
Synthesis and reactivity of (η5-C5H5)Os(N)(CH2SiMe 3)2, the first cyclopentadienyl-nitrido transition-metal complex
Marshman, Robert W.,Shusta, Jeanine M.,Wilson, Scott R.,Shapley, Patricia A.
, p. 1671 - 1676 (2008/10/08)
The first cyclopentadienyl-nitrido complexes of a transition metal were prepared by the reactions between [NBun4][Os(N)Cl2(CH2SiMe 3)2] and either NaC5H5 or LiC5Me5. The complexes (η5-C5H5)Os(N)(CH2SiMe 3)2 and (η5-C5Me5)Os(N)(CH2SiMe 3)2 were characterized by spectroscopic techniques and elemental analysis. They are soluble in organic solvents, volatile, and stable to air and water. The nitrogen atom in (η5-C5H5)Os(N)(CH2SiMe 3)2 is a soft Lewis base. It binds reversibly to BF3 in solution, forming a 1:1 adduct. With silver(I) salts, a 2:1 adduct is formed. The silver-bridged complex {[(η5-C5H5)Os(CH2SiMe 3)2]2(μ-NAgN)}{BF4} was isolated in good yield from the reaction between (η5-C5H5)Os(N)(CH2SiMe 3)2 and AgBF4 and was structurally characterized. Crystal data for Os2AgSi4F4N2C26BH 54 are a = 15.348 (3) A?, b = 18.272 (3) A?, c = 14.114 (2) A?, β= 91.76 (1)°, V = 3956 (2) A?3, ρ = 1.817 g/cm3, μ= 70.56 cm-1, space group = P21/c (C52h), and Z = 4. Final agreement factors are R = 0.065 and Rw = 0.078. The nitrido complex is displaced from silver by PPh3 but not by Me2NCH2CH2NMe2. Alkylation of the nitrogen atom in (η5-C5H5)Os(N)(CH2SiMe 3)2 and CH3OSO2CF3 produced an alkylimido complex, [(η5-C5H5)Os(NMe)-(CH2SiMe 3)2][OSO2CF3].
