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Sonika A. K. Narula O. P. Vermani H. K. Sharma
A. S. Sarpal
《Journal of organometallic chemistry》1994,470(1-2):67-72Bimetallic [SnIV,AlIII-μ-oxoisopropoxyacetate (Bu2Sn(OAc)OAl(OiPr)2] and bimetallic [SnIV,AlIII]-μ- oxoisopropoxide [Bu2SnO2Al2(OiPr)4] have been synthesized by thermal condensation of dibutyltin diacetate with aluminium isopropoxide in 1:1 and 1:2 molar ratio, respectively. Reactions of these compounds with acetylacetone and benzoylacetone in these molar ratios yielded compounds of the type [Bu2Sn(OAc)OAl(OiPr)L], [Bu2Sn(OAc)OAlL2], [Bu2SnO2Al2(OiPr)3L] and [Bu2SnO 2Al2(OiPr)2L2] (where L = acetylacetonate or benzoylacetonate anion). The μ-oxo compounds and their derivatives have been characterized by elemental analysis and spectroscopic techniques (IR, 1H NMR, 13C NMR, 27Al NMR and 119Sn NMR). 相似文献
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Margareta Zehnder 《Helvetica chimica acta》1979,62(8):2854-2859
Polynuclear Cobalt Complexes. V. Preparation of tetrakis (ethylenediamine)-μ-peroxo-μ-amido and μ-peroxo-μ-thiocyanato-dicobalt (III) complexes starting from tetrakis (ethylenediamine)bis-(ammine)-μ-peroxo-dicobalt (III)-tetraperchlorate Racemic tetrakis (ethylenediamine)-μ-peroxo-μ-amido-dicobalt (III) thiocyanate and its corresponding hydroperoxo- and superoxo-complexes have been isolated from [(en)2(NH3)Co(O2)(NH3)(en)2](ClO4)4. A new binuclear peroxo complex containing thiocyanate as bridging ligand was prepared by the same method. The stretching frequencies of the CN- and CS-group as well as the NCS-bending frequence in the IR. spectrum of [(en)2Co(O2, SCN)Co(en)2](NO3)3 suggest that the μ-thiocyanato group is N-bonded (2050, 750, 475 cm?1). A comparison of IR. spectra of known singly and doubly bridged μ-peroxo complexes is made. Characteristic absorption bands, assignable to ν(O? O) and ν(Co? O) are given. 相似文献