Crystal and molecular structures of two triosmium carbonyl cluster complexes containing ortho-metalated phenylphosphines (μ-H)Os₃(CO)₈L[PFcPh(C₆H₄)] (L = PFcPh₂ or CO)

Abstract

Pyrolysis of 0s3(CO), , (PFcPh,), 7, and 0s3(CO) [Traduit par la redaction],

Crystallographic and Structural Analysis of Iron Heterometallic Compounds Part IV: Heteropentameric Compounds

“…-Transitions elements, Μ Crystallographic and structural data for twenty-two coloured Fe 2 M 3 clusters with three identical heterometal atoms are summarized in Table 3B. From the series of transition elements, eight are involved in the Fe 2 M 3 clusters, with two examples with gold [64,65], one with chromium [66], two with molybdenum [57,67], one with cobalt [68] and nickel [69], seven with ruthenium [70][71][72][73][74][75] and osmium [76][77][78][79][80][81][82] and one with indium [83].…”

“…The largest deviation from idealized 90° interbond angle is 12.9°, which occurs within the five-membered Ν -Fe -Ν chelate rings, the Ν -Fe -Ν angles ranging Structural parameters for seven coloured Fe 2 Ru 3 clusters are summarized in Table 3B. Four of the clusters [70-72} display an octahedral metal core with a μ 4 -Ε (Ε = Ο [70], S [71], SMe [71] or Se [72] Structure of dark-red Fe 2 Ru 3 cluster [73] consists of an Fe 2 Se 2 butterfly core bridged to the HCC unit of the diyne HOCOCMe, whereas the substituted acetylenic moiety is coordinated in a μ 3 -η 2 mode to a triangular array of ruthenium atoms, such that the acetylenic bond is parallel to the Ru(2) -Ru (3) [76][77][78][79][80][81][82]. Structure of dark red (CO)6Fe 2^-SeC(H) = C(Se)CCMe}Os 3 (CO), 0 [76] consists of an Fe 2 Se 2 butterfly unit and a HC=CG=CMe group attached to the two Se atoms through the two olefinic carbon atoms, with an Os 3 (CO)i 0 added to the second acetylenic bond in a η 2 , μ 3 mode.…”

Contents

“…There are 26 compounds containing an FeOs 3 cluster [288,[291][292][293][294][295][296][297][298][299][300][301][302][303][304][305][306][307], Their crystallographic and structural parameters are given in Table 5.…”

“…28, Nos. 4-5-6, 2008 Crystallographic and Structural Analysis Of Iron Heterometallic Compounds cyclopentadienylphosphido-P,f,/')-nonacarbonyl-iron-tri-osmium [297] All remaining FeOs3 clusters [294][295][296][298][299][300][301][302][303][304][305][306][307] contain an Os3C framework with a ferrocene or a substituted ferrocene moiety bonded to a μ3bridging alkylidene carbon atom. The Os-Os distances range from 2.7476 (9) to 3.1038(6) A.…”

“…Only four FeM 3 clusters contain a non-transition metal, namely Sn [245], Bi [246] and Te [247,248]. All remaining clusters contain the following transition metals with the number of specimen in parenthesis: Ag [249], Zn [252], Ta [253], W [66], Rh [290], Ir [236] (each xl); Au [250,251], Cr [254,254], Ni [273,274] (each x2); Mo (x4) [177,256,257]; Co (xl8) [258][259][260][261][262][263][264][265][266][267][268][269][270][271][272]; Os (x26) [288,[291][292][293][294][295][296][297][298][299][300][301][302]…”