caa a22 4500 477085636 CHVBK 20180405111503.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF01166052 doi (NATIONALLICENCE)springer-10.1007/BF01166052 Synthesis and structure of [(OC)4Os(PbMe2)]2 and some derivatives of the type Os2(CO)7(SnMe2)2(L) [Elektronische Daten] [Weng Leong, Frederick Einstein, Roland Pomeroy] The complexes [(OC)4Os(PbMe2)]2 (3) and [(OC)4OsSnBu 2 ′ ]2 (4) have been prepared from be reaction of Na2[Os(CO)4] with Me2PbCl2 and Bu 2 ′ SnCl2, respectively, in THF and their X-ray crystal structures determined. The red derivative,3, was light-sensitive in solution. The reactions or [(OC)4 Os(SnMe2)]2 (2), or its decarbonylated derivative [Os3(CO)7(SnMe2)2]2 (7), with olefins or phosphorus donor ligands have also been investigated, and the structures of two derivatives, viz. [Os2(CO)7(SnMe2)2(C2H4)] (5a) and [Os2(CO)7(SnMe2)2(PMe3)] (6a), have been determined; the noncarbonyl ligand occupies an equatorial site in each case. The X-ray crystal structures of all these compounds, like those of [(OC)4Os(EMe2)]2 (E=Ge (1), Sn (2)) which have been reported previously, show leaning of the axial carbonyl ligands toward the metal tetracycle, i.e., an "umbrella” effect. Crystallographic data for compound3: space group, P21/a;a=13.4404(13) Å,b=10.7494(14) A,c=148967(18) A,β=98.204(9)°,R=0.035, 1983 observed reflections. For compound4: space group,P1;a=9.016(1) Å,b=9.370(1),c=11.334(1) A, α=103.67(1)°,β=100.30(1)°, γ=115.03(1)°, R=0.046, 2026 observed reflections. For compound5a: space group,P1;a=9.2933(11)Å,b=9.7181(3),c=12.2508(15) A, α=89.21(1)°,β=87.61(1)°, γ=86.13(1)°,R=0.038, 2770 observed reflections. For compound6a space groupP1:a=8.7244(9)Å,b=10.9318(6),c=13.2560(13) A, α=87.815(6)°,β=83.655(8)°, γ=82.343(6)°, R=0.030, 3497 observed reflections. Plenum Publishing Corporation, 1996 Carbonyl nationallicence osmium nationallicence tin nationallicence lead nationallicence structure nationallicence Leong Weng Department of Chemistry, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada aut Einstein Frederick Department of Chemistry, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada aut Pomeroy Roland Department of Chemistry, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada aut Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 7/2(1996-06-01), 121-143 1040-7278 7:2<121 1996 7 10876 https://doi.org/10.1007/BF01166052 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01166052 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Leong Weng Department of Chemistry, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada aut NATIONALLICENCE 700 1- Einstein Frederick Department of Chemistry, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada aut NATIONALLICENCE 700 1- Pomeroy Roland Department of Chemistry, Simon Fraser University, V5A 1S6, Burnaby, British Columbia, Canada aut NATIONALLICENCE 773 0- Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 7/2(1996-06-01), 121-143 1040-7278 7:2<121 1996 7 10876 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer