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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >SYNTHESES OF METAL CARBONYLS .23. CRYSTAL STRUCTURE AND REACTIVITY OF HEPTAMETHYLINDENYL CARBONYL METAL COMPLEXES [German]
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SYNTHESES OF METAL CARBONYLS .23. CRYSTAL STRUCTURE AND REACTIVITY OF HEPTAMETHYLINDENYL CARBONYL METAL COMPLEXES [German]

机译:金属碳纳米管的合成.23。庚炔基羰基金属配合物的晶体结构和反应性[德语]

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Reaction of heptamethylindene (C-9(CH3)(7), 1) with Re-2(CO)(10) yields [eta(5)-C-9(CH3)(7)]Re(CO)(3) (2), which reacts with NO+BF4- to form the cationic complex [{eta(5)-C-9(CH3)(7)}Re(CO)(2)NO]+BF4- (3). Irradiation of 2 with UV light in che presence of triethyl phosphite leads to formation of [eta(5)-C-9(CH3)(7)]Re(CO)(2)[P(OC2H5)(3)] (4). Alkylation of (CH3)(3)SnCl with Ind*Li gives [eta(1)-C-9(CH3)(7)]Sn(CH3)(3) (5). All compounds were characterized by spectroscopic methods. The molecular structures of 3 and 5 were determined by single crystal X-ray diffraction (3: P2(1) (14), a=1497.7(4) pm, b=879.0(2) pm, c=1609.0(4) pm and beta=110.99(2)degrees, R-1=0.038, wR(2)=0.080; 5: P2(1) (14), a=726.1(1) pm, b=2930.7(3) pm, c=930.0(1) pm and beta=112.834(5)degrees, R-1=0.044, R-w=0.048). Complexes 2-4 exhibit a piano stool configuration with a eta(5)-coordinated permethyl-indenyl ligand (Ind*). Compound 5 displays a eta(1)-coordination of the Ind* ligand. Temperature enhancement causes a hapticity change, as observed by NMR spectroscopy. [References: 51]
机译:七甲基茚(C-9(CH3)(7),1)与Re-2(CO)(10)反应生成[eta(5)-C-9(CH3)(7)] Re(CO)(3) (2),其与NO + BF4-反应形成阳离子络合物[{eta(5)-C-9(CH3)(7)} Re(CO)(2)NO] + BF4-(3)。在亚磷酸三乙酯存在下用紫外线照射2会导致形成[eta(5)-C-9(CH3)(7)] Re(CO)(2)[P(OC2H5)(3)](4 )。 (CH3)(3)SnCl与Ind * Li烷基化得到[η(1)-C-9(CH3)(7)] Sn(CH3)(3)(5)。所有化合物均通过光谱法表征。通过单晶X射线衍射确定3和5的分子结构(3:P2(1)/ n(14),a = 1497.7(4)pm,b = 879.0(2)pm,c = 1609.0(4 )pm和beta = 110.99(2)度,R-1 = 0.038,wR(2)= 0.080; 5:P2(1)/ n(14),a = 726.1(1)pm,b = 2930.7(3) pm,c = 930.0(1)pm和beta = 112.834(5)度,R-1 = 0.044,Rw = 0.048)。配合物2-4表现出带有eta(5)配位的全甲基茚基配体(Ind *)的钢琴凳结构。化合物5显示Ind *配体的eta(1)配位。如通过NMR光谱观察到的,温度升高导致触觉变化。 [参考:51]

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