The phosphino‐stibine ligands (o‐PPh₂C₆H₄)₂SbR [R = o‐PPh₂C₆H₄ (L1), Ph (L2), Cl (L3)] were incorporated into tungsten and molybdenum carbonyl complexes leading to the formation of cis‐[W(CO)₄{(o‐PPh₂C₆H₄)₂SbR}] [R = o‐PPh₂C₆H₄ (1), Ph (2), Cl (3)], fac‐[W(CO)₃{(o‐PPh₂C₆H₄)₃Sb}] (4), fac‐[W(CO)₃{(o‐PPh₂C₆H₄)₂SbCl}] (5), fac‐[(W(CO)₃{(o‐PPh₂C₆H₄)₂Sb})₂] (6), fac‐[Mo(CO)₃{(o‐PPh₂C₆H₄)₂SbR}] [R = o‐PPh₂C₆H₄ (7), Ph (8), Cl (9)]. Compounds 1 and 4 were allowed to react with MX salts with M = Cu, Ag, Au and X = Cl^–, [PF₆]^–, respectively. These reactions yielded cis‐[W(CO)₄{(o‐PPh₂C₆H₄)₃Sb}{MCl}] [M = Cu (10), Ag (11)], cis‐[W(CO)₄{(o‐PPh₂C₆H₄)₂Sb}{AuCl(o‐PPh₂C₆H₄)}{AuCl}] (12) cis‐[(W(CO)₄{(o‐PPh₂C₆H₄)₂Sb})₂AuCl] (13), cis‐[W(CO)₃(μ‐CO){(o‐PPh₂C₆H₄)₃Sb}{Cu}][PF₆] (14), cis‐[W(CO)₄{(o‐PPh₂C₆H₄)₃Sb}{AgMeCN}][PF₆] (15), cis‐[W(CO)₄{(o‐PPh₂C₆H₄)₃Sb}{Au}][PF₆] (16) cis‐[W(CO)₂(μ‐CO){(o‐PPh₂C₆H₄)₃Sb}{Cu₂(μ‐Cl)₂}] (17), fac‐[W(CO)₃{(o‐PPh₂C₆H₄)₃Sb}{AuCl}] (18), and fac‐[W(CO)₂(μ‐CO){(o‐PPh₂C₆H₄)₃Sb}{ML}][PF₆] [M = Cu, L = MeCN (19), M = Ag, L = MeCN (20), M = Au (21)]. Complexes 10–21 all show metal‐metal distances below the sum of the corresponding van der Waals radii. The proximity of the two metal centers is especially significant in 19–21, indicating the presence of metal‐metal bonding.

中文翻译：

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膦-锑代配体用于杂金属配合物的合成

将膦基二苯乙烯配体（o - PPh ₂ C ₆ H ₄）₂ SbR [R = o- PPh ₂ C ₆ H ₄（L1），Ph（L2），Cl（L3）]掺入钨和钼羰基配合物中导致形成顺-[W（CO）₄ {（o -PPh ₂ C ₆ H ₄）₂ SbR}] [R = o -PPh ₂ C ₆ H ₄（1），Ph（2），Cl（3）]，fac－ [W（CO）₃ {（o -PPh ₂ C ₆ H ₄）₃ Sb}]（4），fac－ [W（CO）₃ {（o -PPh ₂ C ₆ H ₄）₂ SbCl}]（5），fac -[（W（CO）₃ {（o- PPh ₂ C ₆ H ₄）₂ Sb}）₂ ]（6），fac- [Mo（CO）₃ {（o -PPh ₂ C ₆ H ₄）₂ SbR}] [R = o- PPh ₂ C ₆ H ₄（7），Ph（8），Cl（9）]。使化合物1和4与分别与M = Cu，Ag，Au和X = Cl ^–，[PF ₆ ] ^–的MX盐反应。这些反应产生顺式-[W（CO）₄ {（o -PPh ₂ C ₆ H₄）₃的Sb} {的MC1}] [M =铜（10），银（11）]，顺式- [W（CO）₄ - {（ø -PPh ₂ ç ₆ ħ ₄）₂的Sb} {AUCL（ø - PPh ₂ C ₆ H ₄）} {AuCl}]（12）顺-[（W（CO）₄ {（o- PPh ₂ C ₆ H ₄）₂ Sb}）₂ AuCl]（13），顺-[W （CO）₃（μ‐CO）{（o -PPh ₂ C ₆ H ₄）₃ Sb} {Cu}] [PF ₆ ]（14），顺-[W（CO）₄ {（o -PPh ₂ C ₆ H ₄）₃ Sb} {AgMeCN}] [PF ₆ ]（15），顺式-[W（CO）₄ {（o -PPh ₂ C ₆ H ₄）₃ Sb} {Au}] [PF ₆ ]（16）顺式-[W（CO）₂（ μ-CO）{（o-PPh ₂ C ₆ H ₄）₃ Sb} {Cu ₂（μ-Cl）₂ }]（17），fac- [W（CO）₃ {（o -PPh ₂ C ₆ H ₄）₃ Sb} {AuCl }]（18），以及fac- [W（CO）₂（μ-CO）{（o -PPh ₂ C ₆ H ₄）₃ Sb} {ML}] [PF ₆ ] [M = Cu，L = MeCN （19），M = Ag，L = MeCN（20），M = Au（21）]。配合物10 – 21都显示金属与金属之间的距离低于相应的范德华半径之和。两个金属中心的距离在19 - 21年特别重要，表明存在金属与金属的结合。