Copper-tungsten complexes with bridging tolylmethylidyne ligands: Crystal structure of the compound [CuW2(μ3-CC6H4Me-4)(CO)4(PPh3)(η-C5H5)2]·CH2Cl2
作者:Mathias Müller-Gliemann、Simon V. Hoskins、A. Guy Orpen、Andrew L. Ratermann、F.Gordon A. Stone
DOI:10.1016/s0277-5387(00)84439-3
日期:1986.1
[W(CC6H4Me-4)(CO)2(η-C5H5)] and [Cu(NCMe)4][PF6] in dichloromethane combine to form the salt [Cu&W(CC6H4Me-4)(CO)2(η-C5H5)&2][PF6], but the latter very readily dissociates in solution releasing the tolylmethylidynetungsten compound. The more stable salt [CuW(μ-CC6H4Me-4)(CO)2(NCMe)(PPh3) (η-C5H5)][PF6] is obtained by addition of [W(CC6H4Me-4)(CO)2(η-C5H5)] to a dichloromethane solution of [Cu(NCMe)4][PF6]
Mercaptothiacalixarenes Steer 24 Copper(I) Centers to form a Hollow‐Sphere Structure Featuring Cu
<sub>2</sub>
S
<sub>2</sub>
Motifs with Exceptionally Short Cu⋅⋅⋅Cu Distances
stabilize the resulting [LCu4 ] units, which then remain monomeric ([(Ph3 PCu)4 L]). In the absence of donor ligands, they aggregate, providing a hexamer ([LCu4 ]6 ) in high yields, with a hollow-sphere structure formed by an unprecedented Cu24 S48 cage that is surrounded by the organic framework of the calixarene chalices. Preliminary NMR experiments with regard to the host-guest chemistry in solution showed
Synthesis of mixed-metal clusters by the reaction of the unsaturated cluster [Os<sub>3</sub>(µ-H)<sub>2</sub>(CO)<sub>10</sub>] with transition-metal hydrides: the X-ray crystal structures of [Os<sub>3</sub>H<sub>3</sub>(CO)<sub>10</sub>{Cu(PPh<sub>3</sub>)}] and [Os<sub>3</sub>H<sub>3</sub>(CO)<sub>11</sub>{Ir(PPh<sub>3</sub>)}]
作者:Brian F. G. Johnson、Jack Lewis、Paul R. Raithby、S. N. Azman、B. Syed-Mustaffa、Michael J. Taylor、Kenton H. Whitmire、William Clegg
DOI:10.1039/dt9840002111
日期:——
dihydride cluster [Os3(µ-H)2(CO)10] reacts with the transition-metal hydrides [CuH(PPh3)}6], [IrH(CO)2(PPh3)2], [RhH(CO)(PPh3)2], and [NiH(Cl)(P(C6H11)3}2] to give the mixed-metal clusters [Os3H3(CO)10Cu(PPh3)}](1), [Os3H3(CO)11Ir(PPh3)}](2), [Os3H3(CO)11Rh(PPh3)}](3), and [Os3H2(CO)10Ni[P(C6H11)3]}](4). These complexes have been characterized by i.r. and n.m.r. spectroscopy, and the structures of (1)
配位不饱和二氢化物簇[Os 3(µ-H)2(CO)10 ]与过渡金属氢化物[CuH(PPh 3)} 6 ],[IrH(CO)2(PPh 3)2 ],[RhH(CO)(PPh 3)2 ]和[NiH(Cl)(P(C 6 H 11)3 } 2)2给出混合金属簇[Os 3 H 3(CO)10 Cu(PPh 3)}](1),[Os 3 H 3(CO)11 Ir(PPh 3)}](2),[Os 3 H 3(CO)11 Rh(PPh 3)}](3)和[Os 3 H 2(CO)10 Ni [P(C 6 H 11)3 ] }](4)。这些配合物已经通过红外光谱和核磁共振谱进行了表征,并且(1)和(2)的结构已经通过单晶X射线分析确定。在络合物(1)中,三个Os原子位于等腰三角形的顶点上,该等腰三角形的长边[3.026(3)Å]由Cu(PPh 3)配体。氢化物没有直接定位,但是证据表明它们桥接了
Nelson, Gregory O.; Sumner, Charles E., Organometallics, 1986, vol. 5, # 10, p. 1983 - 1990
作者:Nelson, Gregory O.、Sumner, Charles E.
DOI:——
日期:——
Riera, Victor; Ruiz, Miguel A.; Tiripicchio, Antonio, Organometallics, 1993, vol. 12, # 8, p. 2962 - 2972
作者:Riera, Victor、Ruiz, Miguel A.、Tiripicchio, Antonio、Tiripicchio-Camellini, Marisa