SYNTHESIS AND REACTIONS OF DIMOLYBDENUM(II,II), DIRUTHENIUM(II,III) AND DICOPPER(II,II) COMPLEXES CONTAINING UNSATURATED ALIPHATIC CARBOXYLATE BRIDGING LIGANDS - X-RAY CRYSTAL-STRUCTURE OF [RU2(MU-O2C(CH3)C=CH2)4CL]

被引：29

作者：

MCCANN, M ^{[1
]}

CARVILL, A ^{[1
]}

GUINAN, P ^{[1
]}

HIGGINS, P ^{[1
]}

CAMPBELL, J ^{[1
]}

RYAN, H ^{[1
]}

WALSH, M ^{[1
]}

FERGUSON, G ^{[1
]}

GALLAGHER, J ^{[1
]}

机构：

[1] UNIV GUELPH,DEPT CHEM & BIOCHEM,GUELPH N1G 2W1,ONTARIO,CANADA

来源：

POLYHEDRON | 1991年 / 10卷 / 19期

关键词：

D O I：

10.1016/S0277-5387(00)86151-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Metathesis reactions were used to prepare dimolybdenum(II,II), diruthenium (II,III) and dicopper(II,II) tetra-mu-carboxylato complexes containing unsaturated aliphatic carboxylate ligands (O2CR) {R1 = HC = CH2, R2 = (CH3)C = CH2, R3 = H2CHC = CH2, R4 = C7H9, R5 = C8H11}. The X-ray crystal structure of [Ru2(mu-O2C(CH3)C = CH2)4Cl] (9) shows that there are two independent centrosymmetric Ru2L4 dimers in the unit cell, bridged by chlorine atoms to form an infinite polymeric chain. Principal dimensions are Ru-Ru 2.287(1) and 2.290(1) angstrom, Ru-Cl 2.555(2) and 2.572(2) angstrom, Ru-Cl-Ru 118.29(7)-degrees. The terminal ethylene (= CH2) and methyl (-CH3) groups of the ligand are mutually disordered. The bicyclo[2.2.1]hept-5-ene-2-carboxylato complexes [Mo2(mu-O2CR4)4] (3), [Ru2(mu-O2CR4)4Cl] (8) and [Cu2(mu-O2CR4)4].2H2O (14) were also synthesized by the Diels-Alder [4 + 2] cycloaddition reaction of cyclopentadiene with the respective propenoato complexes, [Mo2(mu-O2CR1)4].0.5H2O (2), [Ru2(mu-O2CR1)4Cl].2HO2CR1 (7) and [Cu2(mu-O2CR1)4].2H2O (13). The bicyclo[2.2.1]hept-5-ene-2-methyl-2-carboxylato complex, [Ru2(mu-O2CR5)4Cl] (10), was prepared by a similar cycloaddition route from [Ru2(mu-O2CR2)4Cl] (9). No Diels-Alder adducts were formed when cyclopentadiene was reacted with [Mo2(mu-O2CR2)4].0.5H2O (4), [Cu2(mu-O2CR2)4].2H2O, [Cu2(mu-O2CR3)4].2H2O and [Ru2(mu-O2CR3)4Cl] (11).

引用

页码：2273 / 2281

页数：9

共 32 条

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