Synthesis and structural characterization of magnesium and cobalt derivatives of the bulky aryl ligand −C6H3-2,6-Mes2
作者： Jeffrey J Ellison , Philip P Power
DOI: 10.1016/S0022-328X(96)06560-6
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摘要: Abstract The synthesis and structural characterization of the new metal-terphenyl derivatives [BrMC6H3-2,6-Mes2(THF)]2 (M Mg (1), Co (2); Mes −C6H2-2,4,6-Me3) are described. magnesium derivative 1 was synthesized by reaction previously known iodide IC6H3-2,6-Mes2 with activated magnesium. Subsequent treatment CoCl2 affords 2 in moderate yield. Compounds have very similar dimeric structures, which two bromides bridge metals. Each is also coordinated to a −C6H3-2,6-Mes2 group THF molecule. metals thus four-coordinated. cobalt species unusual example stable Co(II) σ-bonded hydrocarbyl. CoCo separation ca. 3.5 A precludes existence significant metal-metal bonding. Crystal data at 130 K Mo Kα ( λ = 0.71073 ) radiation: 1, 9.432(2), b 21.973(5), c 12.558(2) , β 94.87(2)°, Z monoclinic, space, grou P21/c, R 0.058 for 3006(1 > σ(I)) data, 2, 9.394(2), 22.033(7), 12.390(3) 94.99(2)°, space 0.077 2675(I 2σ(I)) data.
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sci-hub.se 参考文章(30)
Experimental organometallic chemistry : a practicum in synthesis and characterization American Chemical Society. ,(1987) , 10.1021/BK-1987-0357
Alan Bassindale, Peter P. Gaspar, Frontiers of organosilicon chemistry Royal Society of Chemistry. ,(1991)
A.L. Spek, P. Voorbergen, G. Schat, C. Blomberg, F. Bickelhaupt, The structure of the grignard reagent : IX. The crystal structure of the dimeric ethylmagnesium bromide/diisopropyl ether complex Journal of Organometallic Chemistry. ,vol. 77, pp. 147- 151 ,(1974) , 10.1016/S0022-328X(00)81313-3
Rudolf J. Wehmschulte, Philip P. Power, Synthesis and Characterization of the .sigma.-Bonded, Quasi-Linear, Metal(II) Diaryls MMes2 (M = Mg, Mn, Fe; Mes = 2,4,6-tert-Bu3C6H2-) Organometallics. ,vol. 14, pp. 3264- 3267 ,(1995) , 10.1021/OM00007A029
Stefan U Koschmieder, Geoffrey Wilkinson, None, Homoleptic and related aryls of transition metals Polyhedron. ,vol. 10, pp. 135- 173 ,(1991) , 10.1016/S0277-5387(00)81585-5
Eric Block, Venkatachalam Eswarakrishnan, Michael Gernon, Gabriel Ofori-Okai, Chantu Saha, Kaluo Tang, Jon Zubieta, o-lithiothiophenol equivalents: Generation, reactions, and applications in synthesis of hindered thiolate ligands Journal of the American Chemical Society. ,vol. 111, pp. 658- 665 ,(1989) , 10.1021/JA00184A039
Norihiro Tokitoh, Kyoko Manmaru, Renji Okazaki, Synthesis and crystal structure of the first base-free diarylgermylene-transition metal mononuclear complexes Organometallics. ,vol. 13, pp. 167- 171 ,(1994) , 10.1021/OM00013A027
Jeffrey J. Ellison, Philip P. Power, Synthesis and Characterization of New Thiolato Derivatives of Lithium, Magnesium, and Zinc: Examples of Two-Coordinate Lithium and Zinc Species Ligated by Sulfur Inorganic Chemistry. ,vol. 33, pp. 4231- 4234 ,(1994) , 10.1021/IC00097A008
T. Głowiak, R. Grobelny, B. Jeżowska-Trzeblatowska, G. Kreisel, W. Seidel, E. Uhlig, Crystal and molecular structure and properties of tetramesitylvanadium Journal of Organometallic Chemistry. ,vol. 155, pp. 39- 46 ,(1978) , 10.1016/S0022-328X(00)90419-4
Xiao-Wang Li, William T. Pennington, Gregory H. Robinson, Synthesis and Molecular Structure of Bis(2,6-dimesitylphenyl)gallium chloride, (Mes2C6H3)2GaCl (Mes = 2,4,6-Me3C6H2): A T-Shaped Tricoordinate Molecule Organometallics. ,vol. 14, pp. 2109- 2111 ,(1995) , 10.1021/OM00004A074