Preparations of metal trichalcogenophosphonates from organophosphonate esters.
Preparations of metal trichalcogenophosphonates from organophosphonate esters.
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由有机膦酸酯制备金属三硫属膦酸盐。
DOI:
10.1021/ic301504p
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发表时间:
2012
影响因子:
4.6
通讯作者:
Davies RP
中科院分区:
文献类型:
--
作者:
Davies RP
A new method for the preparation of metal trichalcogenophosphonates is presented wherein organophosphonate esters are first reduced with LiAlH4and subsequently treated with an organometallic reagent and elemental sulfur or selenium to give the desired trichalcogenophosphonate complex. Using this synthetic protocol withnBuLi as the organometallic reagent, the lithium trithiophosphonate complexes [Li2(S3PCH2Ph)(THF)(TMEDA)]2(1) and [Li4(S3PnPr)2(TMEDA)3]∞(3), where THF = tetrahydrofuran and TMEDA =N,N,N′,N′-tetramethylethylenediamine, have been prepared. In both cases, the formation of byproducts is also evident, including, for1, the tetrathiohypodiphosphonate complex [(PhCH2P(S2))2Li2(THF)4] (2), which has been structurally characterized. Replacement ofnBuLi withnBu2Mg as the metallating agent led to much cleaner products and improved yields, with the new trithio- and triselenoorganophosphonate complexes [Mg(S3PCH2Ph)(TMEDA)]2(4) and [Mg(Se3PnPr)(TMEDA)]2(5) reported. All trichalcogenophosphonate complexes have been structurally characterized in the solid state:1adopts a dimer structure in which the [PhCH2PS3]2–ligand exhibits a unique μ3-η2,η2,η2-coordination mode;3is polymeric comprising of [Li4(S3PnPr)2(TMEDA)2] dimers linked via additional bridging bis(monodentate) TMEDA molecules;4and5both adopt dimeric motifs with μ2-η2,η2coordination of the magnesium centers.
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DOI:
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发表时间:
1998
期刊:
影响因子:
--
作者:
C. Carmalt;Jason A. C. Clyburne;A. Cowley;Viviana Lomelí;Brian G. Mcburnett
通讯作者:
Brian G. Mcburnett
影响因子:
4
作者:
Jens K. Bjernemose;R. Davies;Andrew P S Jurd;M. Martinelli;P. Raithby;Andrew J. P. White
通讯作者:
Andrew J. P. White
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
A. Cowley;D. Hellert;F. Gabbaï;F. Olbrich
通讯作者:
F. Olbrich
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
M. C. Van Hooijdonk;G. Gerritsen;L. Brandsma
通讯作者:
L. Brandsma
DOI:
--
发表时间:
1970
期刊:
影响因子:
--
作者:
E. Fluck;H. Binder
通讯作者:
H. Binder